{ "area": "tools", "version": "2.1.282", "platform": "darwin-arm64", "items": [ { "id": "pipeline-get-all-base-tools", "title": "getAllBaseTools", "group": "How the tool list is built", "kind": "other", "text": null, "when": "Lists every built-in tool. Conditions in the list itself: Bash only when Bash is usable; Glob/Grep unless embedded find/grep replace them; the four Task tools only when CLAUDE_CODE_ENABLE_TASKS is not false; PowerShell only when the PowerShell tool is enabled; RefreshMcpTools only when CLAUDE_CODE_ENABLE_REFRESH_MCP_TOOLS is set; ToolSearch only when tool search is on; the self-hosted runner tools only when the wizardOperatorToolsEnabled launch option is on; ClaudeDesign only when nonessential traffic is allowed.", "documented": null, "details": {}, "provenance": [ { "file": "chunk-v8p447v2.js", "binary_offset": 188189822, "length": 773, "sha256": "13834b3e4a8eb0bf0fcb2ac533ceea1620fb3a3291d2107ac5e2e10464501032", "version": "2.1.282", "platform": "darwin-arm64", "role": "definition" } ] }, { "id": "pipeline-get-tools", "title": "getTools", "group": "How the tool list is built", "kind": "other", "text": null, "when": "With CLAUDE_CODE_SIMPLE set, the list is reduced to Bash (when available), PowerShell (when enabled), Read and Edit, plus Agent, TaskStop, SendMessage and Workflow in coordinator mode. Otherwise it drops ListMcpResourcesTool, ReadMcpResourceTool, ReadMcpResourceDirTool and StructuredOutput from the base list, applies permission deny rules, removes WebFetch in the sessions described under WebFetch, keeps tools whose isEnabled() is true, re-adds Glob/Grep when embedded search is on but Bash is absent, and appends WaitForMcpServers when MCP servers are pending.", "documented": null, "details": {}, "provenance": [ { "file": "chunk-v8p447v2.js", "binary_offset": 188190811, "length": 1001, "sha256": "a7ea85b969d7431c90494e4ae27152a093fe4eaa3cf8ebbf8e10011c8ee0a630", "version": "2.1.282", "platform": "darwin-arm64", "role": "definition" } ] }, { "id": "pipeline-assemble-tool-pool", "title": "assembleToolPool", "group": "How the tool list is built", "kind": "other", "text": null, "when": "Merges the host's machine MCP tools (`machineMcpTools`) into the session's MCP tools, then appends MCP tools and skill tools (`skillTools`) to the built-ins, sorts each part by name, and removes duplicate names.", "documented": null, "details": {}, "provenance": [ { "file": "chunk-v8p447v2.js", "binary_offset": 188191823, "length": 216, "sha256": "3e30ba035d87df94e30ae1dee8a9ea9e1a471ed550670241819b091a790db63c", "version": "2.1.282", "platform": "darwin-arm64", "role": "definition" } ] }, { "id": "pipeline-deferral", "title": "Deferral decision", "group": "How the tool list is built", "kind": "other", "text": null, "when": "Applies while tool search is on; a deferred tool is loaded through ToolSearch. A deferral answer the host gives for the tool's name (`deferralOf`) comes first. Then, in order: alwaysLoad tools are not deferred; tools named in flag `tengu_non_deferrable_builtins` or config `non_deferrable_builtins` are not deferred; ToolSearch, StructuredOutput, SendUserMessage and ScheduleWakeup are never deferred; Agent is not deferred when fork subagents are enabled; PushNotification is not deferred when CLAUDE_CODE_ENTRYPOINT is `remote_trigger` or `remote_cowork_trigger`; EnterWorktree is not deferred in background sessions; every MCP tool is deferred; ReportFindings, Workflow and ShareOnboardingGuide are deferred when flag `tengu_shiny_stardust` (default false) is on; any other tool is deferred when shouldDefer is true. Neither capture contains ToolSearch, and tools with shouldDefer true (CronCreate, Monitor and others) were sent in full there.", "documented": null, "details": {}, "provenance": [ { "file": "chunk-ctcrrag4.js", "binary_offset": 180302621, "length": 159, "sha256": "9871305c6d0012a75727410409601a1f5b9971c220dee2a0c6ca1d45bf95d934", "version": "2.1.282", "platform": "darwin-arm64", "role": "definition" } ] }, { "id": "pipeline-builder-defaults", "title": "Tool builder defaults", "group": "How the tool list is built", "kind": "other", "text": null, "when": "A definition without isEnabled is enabled; without isReadOnly, isConcurrencySafe or isDestructive the flag is false.", "documented": null, "details": {}, "provenance": [ { "file": "chunk-zfadt8ye.js", "binary_offset": 177328056, "length": 1782, "sha256": "f8190ee8c5ec0f05c3369a0fb9fb78028831e2f1ef972b9fccff7e25f0d2ede7", "version": "2.1.282", "platform": "darwin-arm64", "role": "definition" } ] }, { "id": "wrapper-mcp", "title": "mcp (MCP tool base)", "group": "MCP", "kind": "other", "text": null, "when": "Base object for MCP server tools.", "documented": null, "details": { "definition": "chunk-s9a0hj00.js @ char 1044", "note": "Generic: an MCP server's tools are exposed as copies of this object named `mcp____`, with the server's own description and input schema (empty prompt and description here). From code." }, "provenance": [ { "file": "chunk-s9a0hj00.js", "binary_offset": 199521392, "length": 552, "sha256": "30829cd9fdd5b830279e9b29607ac3b1b701a2b7c3ca2714f5eef024074a744d", "version": "2.1.282", "platform": "darwin-arm64", "role": "definition" } ] }, { "id": "wrapper-permission-stub", "title": "Permission UI stub", "group": "Other", "kind": "other", "text": null, "when": "Built when a tool name has no definition.", "documented": null, "details": { "definition": "chunk-fbctzhpm.js @ char 207311", "note": "Generic: isEnabled is false and calling it throws \"stub exists only for permission UI rendering\" (from code). Not a model-visible tool." }, "provenance": [ { "file": "chunk-fbctzhpm.js", "binary_offset": 200647611, "length": 1262, "sha256": "a24da205095ad935bab5f2ed6f0c616dca49cfaeb5e08fee6e6f6b9aea82de1f", "version": "2.1.282", "platform": "darwin-arm64", "role": "definition" } ] }, { "id": "wrapper-artifact-toolset", "title": "Artifact toolset input wrapper", "group": "Artifacts and design", "kind": "other", "text": null, "when": "Wraps a tool definition.", "documented": null, "details": { "definition": "chunk-scrbks1a.js @ char 323787", "note": "Generic: swaps the input schema, prompt and flag methods of a wrapped tool when the artifact toolset latch is on (from code). Undocumented." }, "provenance": [ { "file": "chunk-scrbks1a.js", "binary_offset": 203945567, "length": 2820, "sha256": "ad45db817514ba063ed1d93bcb11dddaf8917cee91039ad34a96d30aebefd4c3", "version": "2.1.282", "platform": "darwin-arm64", "role": "definition" } ] }, { "id": "wrapper-condition-output", "title": "Condition result tool", "group": "Other", "kind": "other", "text": null, "when": "Built from another tool definition.", "documented": null, "details": { "definition": "chunk-x9fwahqm.js @ char 2075676", "note": "Generic: spreads another tool definition, sets alwaysLoad, and fixes the input to {ok, reason, impossible} (\"Whether the condition was met\"). Undocumented; read at `chunk-x9fwahqm.js`." }, "provenance": [ { "file": "chunk-x9fwahqm.js", "binary_offset": 183041496, "length": 402, "sha256": "e061e221a5e5d03e3dab4a36eef4cdfd600864ae0b0753bf12da889c2107ed9a", "version": "2.1.282", "platform": "darwin-arm64", "role": "definition" } ] }, { "id": "wrapper-powershell-remote", "title": "PowerShell (remote variant)", "group": "Shell", "kind": "other", "text": null, "when": "Built from the PowerShell definition with Object.defineProperties.", "documented": null, "details": { "definition": "chunk-82c8c9ef.js @ char 1965", "note": "Generic: overrides inputSchema and prompt for PowerShell that runs on an attached machine; isEnabled returns true. Undocumented; read at `chunk-82c8c9ef.js`." }, "provenance": [ { "file": "chunk-82c8c9ef.js", "binary_offset": 197168035, "length": 465, "sha256": "90b123849b9ecd3a886ea250f204c111d452f0cda9659c3fb4a9427c64b3b3b5", "version": "2.1.282", "platform": "darwin-arm64", "role": "definition" } ] }, { "id": "tool-read", "title": "Read", "group": "Files and search", "kind": "tool", "text": "Reads a file from the local filesystem.\n\n- `file_path` must be an absolute path.\n- Reads up to 2000 lines by default.\n- When you already know which part of the file you need, only read that part. This can be important for larger files.\n- Results are returned using cat -n format, with line numbers starting at 1\n- Reads images (PNG, JPG, …) and presents them visually. Reads PDFs via the `pages` parameter (e.g. \"1-5\", max 20 pages/request; required for PDFs over 10 pages). Reads Jupyter notebooks (.ipynb) as cells with outputs.\n- Reading a directory, a missing file, or an empty file returns an error or system reminder rather than content.\n- Do NOT re-read a file you just edited to verify — Edit/Write would have errored if the change failed, and the harness tracks file state for you.", "when": "Always in the built-in list; no isEnabled gate (builder default: enabled). Kept in the reduced CLAUDE_CODE_SIMPLE set (getTools).", "documented": "https://code.claude.com/docs/en/tools-reference#read-tool-behavior", "details": { "aliases": [], "deferred": "no", "read_only": true, "concurrency_safe": true, "definition": "chunk-x9fwahqm.js @ char 815131", "should_defer": false, "is_enabled": "always (builder default)", "search_hint": "read files, images, PDFs, notebooks", "ui_description": "Read a file from the local filesystem.", "template_matches_capture": [ { "capture": "interactive", "matches": true }, { "capture": "print", "matches": true } ], "variants": [ { "when": "flag:tengu_tab_read_sep (default false)", "captured_text": "- Results are returned using cat -n format, with line numbers starting at 1", "variant_text": "- Results are returned using cat -n format, with line numbers starting at 1. Each line is the line number, a single separator (a tab or `:`), then the verbatim file content (including any leading whitespace)." }, { "when": "not lean prompt (options.leanPrompt, else the model's setting)", "captured_text": "Reads a file from the local filesystem.\n\n- `file_path` must be an absolute path.\n- Reads up to 2000 lines by default.\n- When you already know which part of the file you need, only read that part. This can be important for larger files.\n- Results are returned using cat -n format, with line numbers starting at 1\n- Reads images (PNG, JPG, …) and presents them visually. Reads PDFs via the `pages` parameter (e.g. \"1-5\", max 20 pages/request; required for PDFs over 10 pages). Reads Jupyter notebooks (.ipynb) as cells with outputs.\n- Reading a directory, a missing file, or an empty file returns an error or system reminder rather than content.\n- Do NOT re-read a file you just edited to verify — Edit/Write would have errored if the change failed, and the harness tracks file state for you.", "variant_text": "Reads a file from the local filesystem. You can access any file directly by using this tool.\nAssume this tool is able to read all files on the machine. If the User provides a path to a file assume that path is valid. It is okay to read a file that does not exist; an error will be returned.\n\nUsage:\n- The file_path parameter must be an absolute path, not a relative path\n- By default, it reads up to 2000 lines starting from the beginning of the file\n- When you already know which part of the file you need, only read that part. This can be important for larger files.\n- Results are returned using cat -n format, with line numbers starting at 1\n- This tool allows Claude Code to read images (eg PNG, JPG, etc). When reading an image file the contents are presented visually as Claude Code is a multimodal LLM.{{expr:QPt() ? … : …}}\n- This tool can read Jupyter notebooks (.ipynb files) and returns all cells with their outputs, combining code, text, and visualizations.\n- This tool can only read files, not directories. To list files in a directory, use the registered shell tool.\n- You will regularly be asked to read screenshots. If the user provides a path to a screenshot, ALWAYS use this tool to view the file at the path. This tool will work with all temporary file paths.\n- If you read a file that exists but has empty contents you will receive a system reminder warning in place of file contents.\n- Do NOT re-read a file you just edited to verify — Edit/Write would have errored if the change failed, and the harness tracks file state for you.", "nested_variants": [ { "when": "flag:tengu_tab_read_sep (default false)", "default_text": "- Results are returned using cat -n format, with line numbers starting at 1", "variant_text": "- Results are returned using cat -n format, with line numbers starting at 1. Each line is the line number, a single separator (a tab or `:`), then the verbatim file content (including any leading whitespace)." } ], "nested_fragments": [ { "placeholder": "{{expr:QPt() ? … : …}}", "condition": "QPt()", "when_true": "\n- This tool can read PDF files (.pdf). For large PDFs (more than 10 pages), you MUST provide the pages parameter to read specific page ranges (e.g., pages: \"1-5\"). Reading a large PDF without the pages parameter will fail. Maximum 20 pages per request.", "when_false": "" } ] } ], "conditional_fragments": [ { "condition": "QPt()", "raw": "QPt()", "captured_branch": "true", "captured_text": " Reads PDFs via the `pages` parameter (e.g. \"1-5\", max 20 pages/request; required for PDFs over 10 pages).", "alternative_text": "" } ], "variants_source": "branches read from prompt() code, matched against the interactive CLI capture", "constants": { "ZPt": "2000", "o": "- When you already know which part of the file you need, only read that part. This can be important for larger files.", "CCr": "- Results are returned using cat -n format, with line numbers starting at 1", "h_o": "- Results are returned using cat -n format, with line numbers starting at 1. Each line is the line number, a single separator (a tab or `:`), then the verbatim file content (including any leading whitespace).", "n": "\n- Do NOT re-read a file you just edited to verify — Edit/Write would have errored if the change failed, and the harness tracks file state for you." }, "text_source": "captured (interactive, print)", "input_schema_source": "captured", "input_schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "type": "object", "properties": { "file_path": { "description": "The absolute path to the file to read", "type": "string" }, "offset": { "description": "The line number to start reading from. Only provide if the file is too large to read at once", "type": "integer", "minimum": 0, "maximum": 9007199254740991 }, "limit": { "description": "The number of lines to read. Only provide if the file is too large to read at once.", "type": "integer", "exclusiveMinimum": 0, "maximum": 9007199254740991 }, "pages": { "description": "Page range for PDF files (e.g., \"1-5\", \"3\", \"10-20\"). Only applicable to PDF files. Maximum 20 pages per request.", "type": "string" } }, "required": [ "file_path" ], "additionalProperties": false }, "parameters": [ { "name": "file_path", "type": "string", "required": true, "description": "The absolute path to the file to read" }, { "name": "offset", "type": "integer", "required": false, "description": "The line number to start reading from. Only provide if the file is too large to read at once" }, { "name": "limit", "type": "integer", "required": false, "description": "The number of lines to read. Only provide if the file is too large to read at once." }, { "name": "pages", "type": "string", "required": false, "description": "Page range for PDF files (e.g., \"1-5\", \"3\", \"10-20\"). Only applicable to PDF files. Maximum 20 pages per request." } ], "sdk_types": { "interface": "FileReadInput", "agrees": true }, "output": "outputSchema fields (from code): `type`, `file`, `artifactRead`, `firstPage`, `pages`, `source`.", "available_in": "CLI, SDK", "seen_in": "interactive CLI capture, -p/SDK capture", "definition_provenance_index": 22 }, "provenance": [ { "file": "chunk-6r3d02xb.js", "binary_offset": 180485676, "length": 97, "sha256": "06364046fe23f2bedb3f9b524e7877183607fde0d7f0990bb214f2d567525777", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-6r3d02xb.js", "binary_offset": 180485779, "length": 19, "sha256": "47d2e2752378437a894d2498c8d50a4b16ec21dbaf280afafd77cf11929d414b", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-6r3d02xb.js", "binary_offset": 180485500, "length": 117, "sha256": "135095686ed7e0430a409b32b12e00655b4b1c2868cf4f1449654a131f1a53cf", "version": "2.1.282", "platform": "darwin-arm64", "role": 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"b52f55bda66b379a5442179d03ac6703dc9b92e46b7edbf162c274359c912865", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-6r3d02xb.js", "binary_offset": 180484369, "length": 152, "sha256": "a9cf9d6e3a4d9cb0da5527289465a8dfb5d558b4ce97c5033b35cd99f2194c3e", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-6r3d02xb.js", "binary_offset": 180485272, "length": 75, "sha256": "effed763c5f0bc64541f93a2e3b5b5fc0d69ef3c567f97bf72f548ffb9f0e4e1", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-6r3d02xb.js", "binary_offset": 180485360, "length": 135, "sha256": "83d2a8c8c72a383ab4d8a49e6fe6454f07957e8b9d34280018ab8694ffaa6c8b", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-6r3d02xb.js", "binary_offset": 180486171, "length": 400, "sha256": "69f25563c10933fb8cbf698383576065c169bc9aa10aa7a1823706d035ee9e0c", "version": "2.1.282", "platform": 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"sha256": "effed763c5f0bc64541f93a2e3b5b5fc0d69ef3c567f97bf72f548ffb9f0e4e1", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-6r3d02xb.js", "binary_offset": 180485360, "length": 135, "sha256": "83d2a8c8c72a383ab4d8a49e6fe6454f07957e8b9d34280018ab8694ffaa6c8b", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-6r3d02xb.js", "binary_offset": 180486633, "length": 165, "sha256": "107ee0a46f0d03ac528e2caa0651cb203383995a019ca50786655e0ca408ca27", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-6r3d02xb.js", "binary_offset": 180486807, "length": 253, "sha256": "362d75f640d564f27126e30f221b45acaede353673cf92ec4f3064b61ed4ec78", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-6r3d02xb.js", "binary_offset": 180487065, "length": 573, "sha256": "9d8ed9ee0cdd41007094ae556588aeb0651b1735c75da6c31afb8c977126f5a5", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-6r3d02xb.js", "binary_offset": 180484369, "length": 152, "sha256": "a9cf9d6e3a4d9cb0da5527289465a8dfb5d558b4ce97c5033b35cd99f2194c3e", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-x9fwahqm.js", "binary_offset": 181780951, "length": 5018, "sha256": "bd845c1cdd128036da48d087ea110f2b0db31609b3871d26d79684b8be8d8288", "version": "2.1.282", "platform": "darwin-arm64", "role": "definition" } ] }, { "id": "tool-write", "title": "Write", "group": "Files and search", "kind": "tool", "text": "Writes a file to the local filesystem, overwriting if one exists.\n\nWhen to use: creating a new file, or fully replacing one you've already Read. Overwriting an existing file you haven't Read will fail. For partial changes, use Edit instead.", "when": "Always in the built-in list; no isEnabled gate. Dropped from the reduced CLAUDE_CODE_SIMPLE set (getTools).", "documented": "https://code.claude.com/docs/en/tools-reference#write-tool-behavior", "details": { "aliases": [], "deferred": "no", "read_only": false, "concurrency_safe": false, "definition": "chunk-x9fwahqm.js @ char 629767", "should_defer": false, "is_enabled": "always (builder default)", "search_hint": "create or overwrite files", "ui_description": "Write a file to the local filesystem.", "template_matches_capture": [ { "capture": "interactive", "matches": true }, { "capture": "print", "matches": true } ], "variants": [ { "when": "not lean prompt (options.leanPrompt, else the model's setting)", "captured_text": "Writes a file to the local filesystem, overwriting if one exists.\n\nWhen to use: creating a new file, or fully replacing one you've already Read. Overwriting an existing file you haven't Read will fail. For partial changes, use Edit instead.", "variant_text": "Writes a file to the local filesystem.\n\nUsage:\n- This tool will overwrite the existing file if there is one at the provided path.{{expr:n ? … : …}}\n- Prefer the Edit tool for modifying existing files — it only sends the diff. Only use this tool to create new files or for complete rewrites.\n- NEVER create documentation files (*.md) or README files unless explicitly requested by the User.\n- Only use emojis if the user explicitly requests it. Avoid writing emojis to files unless asked.", "nested_fragments": [ { "placeholder": "{{expr:n ? … : …}}", "condition": "!Bq(…)", "when_true": "\n- If this is an existing file outside the working directory, you MUST use the Read tool first to read the file's contents. This tool will fail if you did not.", "when_false": "\n- If this is an existing file, you MUST use the Read tool first to read the file's contents. This tool will fail if you did not read the file first." } ] } ], "conditional_fragments": [ { "condition": "!Bq(…)", "raw": "n", "captured_branch": "false", "captured_text": " Overwriting an existing file you haven't Read will fail.", "alternative_text": " Overwriting an existing file outside the working directory that you haven't Read will fail." } ], "variants_source": "branches read from prompt() code, matched against the interactive CLI capture", "constants": { "at": "Read", "Tt": "Edit" }, "text_source": "captured (interactive, print)", "input_schema_source": "captured", "input_schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "type": "object", "properties": { "file_path": { "description": "The absolute path to the file to write (must be absolute, not relative)", "type": "string" }, "content": { "description": "The content to write to the file", "type": "string" } }, "required": [ "file_path", "content" ], "additionalProperties": false }, "parameters": [ { "name": "file_path", "type": "string", "required": true, "description": "The absolute path to the file to write (must be absolute, not relative)" }, { "name": "content", "type": "string", "required": true, "description": "The content to write to the file" } ], "sdk_types": { "interface": "FileWriteInput", "agrees": true }, "output": "outputSchema fields (from code): `type`, `filePath`, `content`, `structuredPatch`, `originalFile`, `gitDiff`, `userModified`, `staged`.", "available_in": "CLI, SDK", "seen_in": "interactive CLI capture, -p/SDK capture", "definition_provenance_index": 20 }, "provenance": [ { "file": "chunk-h2jpx4xr.js", "binary_offset": 179302845, "length": 139, "sha256": "d041a5d391627050ba75dce7e1c46d409055bf22f5782bae447ff71e647b0a2e", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-wk4veyaa.js", "binary_offset": 176190942, "length": 4, "sha256": "9b9a8d05a7ec353bda84f9c1bb3178c299de3001b5e970508ddc889c487f92ca", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-h2jpx4xr.js", "binary_offset": 179302989, "length": 1, "sha256": "cdb4ee2aea69cc6a83331bbe96dc2caa9a299d21329efb0336fc02a82e1839a8", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-h2jpx4xr.js", "binary_offset": 179302778, "length": 42, "sha256": "d0df7b3b9505de7849aac7c4e1f0d868c9b9cbdb0d80d4061a4dcd27b1d7cca5", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-wk4veyaa.js", "binary_offset": 176190942, "length": 4, "sha256": "9b9a8d05a7ec353bda84f9c1bb3178c299de3001b5e970508ddc889c487f92ca", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-h2jpx4xr.js", "binary_offset": 179302825, "length": 11, "sha256": "fc0dfc1920a330577df659159ffc014ac2fdde3bfb59f1864b14f6ff8a9ad718", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-h2jpx4xr.js", "binary_offset": 179302994, "length": 26, "sha256": "1ff42554a320920433ef85577947b28a3009f06e5407c08b4ea57010becfac15", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-2393h2ax.js", "binary_offset": 175854187, "length": 4, "sha256": "464c4ffd019e1e9691dcf0537c797353ef2b1c1d4833d3d463e5b74ae4547344", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-h2jpx4xr.js", "binary_offset": 179303025, "length": 9, "sha256": "d360b0168e0426cb319110fd8263ae855c992767463e0fab2b01745c85072345", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-h2jpx4xr.js", "binary_offset": 179302682, "length": 77, "sha256": "340c43414130d9a29784200480511e47dc32b41912eb27cb3f5d2012eea416be", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-wk4veyaa.js", "binary_offset": 176190942, "length": 4, "sha256": "9b9a8d05a7ec353bda84f9c1bb3178c299de3001b5e970508ddc889c487f92ca", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-h2jpx4xr.js", "binary_offset": 179302764, "length": 11, "sha256": "fc0dfc1920a330577df659159ffc014ac2fdde3bfb59f1864b14f6ff8a9ad718", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-h2jpx4xr.js", "binary_offset": 179303043, "length": 129, "sha256": "ababbecfa121a72894a26e96cf2cb5e7430253a11003b55ee5b1b83fe6c21540", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-h2jpx4xr.js", "binary_offset": 179302411, "length": 79, "sha256": "5172dadc0c360dbc37c539b798e4fcdddc14a80ec2d9c094b969faac8a179867", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-wk4veyaa.js", "binary_offset": 176190942, "length": 4, "sha256": "9b9a8d05a7ec353bda84f9c1bb3178c299de3001b5e970508ddc889c487f92ca", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-h2jpx4xr.js", "binary_offset": 179302495, "length": 76, "sha256": "a5c5c12e1625ac4cf54b5cbd3f5557f48370e48bc9fbb8d49c812051d09a0b4c", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-h2jpx4xr.js", "binary_offset": 179302239, "length": 49, "sha256": "9c4fbc8d9b803f99b7039f5fd2c19810d1105e032485402fe0dcf01fda471d58", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-wk4veyaa.js", "binary_offset": 176190942, "length": 4, "sha256": "9b9a8d05a7ec353bda84f9c1bb3178c299de3001b5e970508ddc889c487f92ca", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-h2jpx4xr.js", "binary_offset": 179302293, "length": 96, "sha256": "ea4c1e3ef726ac2ec371ebcba58755fdeaea8d13fdb0cfed32cdf66d5a9241f9", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-h2jpx4xr.js", "binary_offset": 179303184, "length": 345, "sha256": "4e24c0715d8cdaf2c1ef289a12a0bbc6f36b04003b547644707205469f88a14b", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-x9fwahqm.js", "binary_offset": 181595587, "length": 4649, "sha256": "c8c1679017fe65fdd4764367d6a496f5778ed9ffcb97fd1892975b98b4375660", "version": "2.1.282", "platform": "darwin-arm64", "role": "definition" } ] }, { "id": "tool-edit", "title": "Edit", "group": "Files and search", "kind": "tool", "text": "Performs exact string replacement in a file.\n\n- You must Read the file in this conversation before editing, or the call will fail.\n- `old_string` must match the file exactly, including indentation, and be unique — the edit fails otherwise. Strip the Read line prefix (line number + tab) before matching.\n- `replace_all: true` replaces every occurrence instead.", "when": "Always in the built-in list; no isEnabled gate. Kept in the reduced CLAUDE_CODE_SIMPLE set (getTools).", "documented": "https://code.claude.com/docs/en/tools-reference#edit-tool-behavior", "details": { "aliases": [], "deferred": "no", "read_only": false, "concurrency_safe": false, "definition": "chunk-x9fwahqm.js @ char 3496443", "should_defer": false, "is_enabled": "always (builder default)", "search_hint": "modify file contents in place", "ui_description": "A tool for editing files", "template_matches_capture": [ { "capture": "interactive", "matches": true }, { "capture": "print", "matches": true } ], "variants": [ { "when": "flag:tengu_tab_read_sep (default false)", "captured_text": "line number + tab", "variant_text": "line number + a single tab or `:`" }, { "when": "not lean prompt (options.leanPrompt, else the model's setting)", "captured_text": "Performs exact string replacement in a file.\n\n- You must Read the file in this conversation before editing, or the call will fail.\n- `old_string` must match the file exactly, including indentation, and be unique — the edit fails otherwise. Strip the Read line prefix (line number + tab) before matching.\n- `replace_all: true` replaces every occurrence instead.", "variant_text": "Performs exact string replacements in files.\n\nUsage:{{expr:g ? … : …}}\n- When editing text from Read tool output, ensure you preserve the exact indentation (tabs/spaces) as it appears AFTER the line number prefix. The line number prefix format is: line number + tab. Everything after that is the actual file content to match. Never include any part of the line number prefix in the old_string or new_string.\n- ALWAYS prefer editing existing files in the codebase. NEVER write new files unless explicitly required.\n- Only use emojis if the user explicitly requests it. Avoid adding emojis to files unless asked.\n- The edit will FAIL if `old_string` is not unique in the file. Either provide a larger string with more surrounding context to make it unique or use `replace_all` to change every instance of `old_string`.\n- Use `replace_all` for replacing and renaming strings across the file. This parameter is useful if you want to rename a variable for instance.", "nested_variants": [ { "when": "flag:tengu_tab_read_sep (default false)", "default_text": "line number + tab", "variant_text": "line number + a single separator character (a tab or `:`)" }, { "when": "x(\"tengu_edit_minimalanchor_jrn\",!1)", "default_text": "\n- The edit will FAIL if `old_string` is not unique in the file. Either provide a larger string with more surrounding context to make it unique or use `replace_all` to change every instance of `old_string`.", "variant_text": "\n- Keep `old_string` minimal — usually 1-3 lines, only enough to be unique in the file. Including excess context wastes tokens and is an error.\n- The edit will FAIL if `old_string` is not unique in the file. In that case, add the minimum extra context needed for uniqueness, or use `replace_all` to change every instance." } ], "nested_fragments": [ { "placeholder": "{{expr:g ? … : …}}", "condition": "!Bq(…)", "when_true": "\n- If the file is outside the working directory, you must use your `Read` tool to read it before editing. This tool will error if you edit such a file without reading it first.", "when_false": "\n- You must use your `Read` tool at least once in the conversation before editing. This tool will error if you attempt an edit without reading the file." } ] } ], "conditional_fragments": [ { "condition": "!Bq(…)", "raw": "g", "captured_branch": "false", "captured_text": "\n- You must Read the file in this conversation before editing, or the call will fail.", "alternative_text": "\n- If the file is outside the working directory, you must Read it in this conversation before editing, or the call will fail." } ], "variants_source": "branches read from prompt() code, matched against the interactive CLI capture", "constants": { "at": "Read" }, "text_source": "captured (interactive, print)", "input_schema_source": "captured", "input_schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "type": "object", "properties": { "file_path": { "description": "The absolute path to the file to modify", "type": "string" }, "old_string": { "description": "The text to replace", "type": "string" }, "new_string": { "description": "The text to replace it with (must be different from old_string)", "type": "string" }, "replace_all": { "description": "Replace all occurrences of old_string (default false)", "default": false, "type": "boolean" } }, "required": [ "file_path", "old_string", "new_string" ], "additionalProperties": false }, "parameters": [ { "name": "file_path", "type": "string", "required": true, "description": "The absolute path to the file to modify" }, { "name": "old_string", "type": "string", "required": true, "description": "The text to replace" }, { "name": "new_string", "type": "string", "required": true, "description": "The text to replace it with (must be different from old_string)" }, { "name": "replace_all", "type": "boolean", "required": false, "description": "Replace all occurrences of old_string (default false)", "default": false } ], "sdk_types": { "interface": "FileEditInput", "agrees": true }, "output": "outputSchema fields (from code): `filePath`, `oldString`, `newString`, `originalFile`, `structuredPatch`, `userModified`, `replaceAll`, `gitDiff`, `staged`.", "available_in": "CLI, SDK", "seen_in": "interactive CLI capture, -p/SDK capture", "definition_provenance_index": 25 }, "provenance": [ { "file": "chunk-x9fwahqm.js", "binary_offset": 184459788, "length": 45, "sha256": "635833fe81497288326bcad7e1d538ddbe483a979f601fd05c20a1ba0c27b8cf", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-x9fwahqm.js", "binary_offset": 184459967, "length": 12, "sha256": "dca79dc7ff1faa5ce9df15bf571fb8ec7d35ea0809238081cd4cfdbbf4537068", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-wk4veyaa.js", "binary_offset": 176190942, "length": 4, "sha256": "9b9a8d05a7ec353bda84f9c1bb3178c299de3001b5e970508ddc889c487f92ca", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-x9fwahqm.js", "binary_offset": 184459984, "length": 69, "sha256": "2ba8715e329996db34dde56b408519efd24a762c5d0dba9e96ac560165ff7e67", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-x9fwahqm.js", "binary_offset": 184460055, "length": 145, "sha256": "e71eed7ff55b76545d7496b650eab1715eacf554aa618a8774e4d0fc6fca65e6", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-x9fwahqm.js", "binary_offset": 184459762, "length": 17, "sha256": "0d9cf991783c25102f638b1fc71571aabb129b86c48f4fd22ef83a504ee66c3c", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-x9fwahqm.js", "binary_offset": 184460204, "length": 77, "sha256": "c7f05cad595d56cb361c367356757ada585ee889201716047f1521360a85c2b6", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-x9fwahqm.js", "binary_offset": 184459838, "length": 58, "sha256": "0948ad0513ca2ad6db69c0157ddfc418033eeb72db938776b4b64e2f8cee006c", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-wk4veyaa.js", "binary_offset": 176190942, "length": 4, "sha256": "9b9a8d05a7ec353bda84f9c1bb3178c299de3001b5e970508ddc889c487f92ca", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-x9fwahqm.js", "binary_offset": 184459901, "length": 63, "sha256": "744c9bed7a48399dbda37694b21b6a9667ed9f6589e1d255dfeac7b274b481e4", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-x9fwahqm.js", "binary_offset": 184459726, "length": 33, "sha256": "3efd56ec20b042f7e08c4470507c60b37afb1a9dbabc13bea1ffd334c01dfeab", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-x9fwahqm.js", "binary_offset": 184460958, "length": 52, "sha256": "b91795eea4ef965ef681ac63ed21363807ae932bf8852535f0727290212d0d7f", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-x9fwahqm.js", "binary_offset": 184459390, "length": 69, "sha256": "586c26cf7f89aad6018492dfb7c47a80cdcd1d1c8e35d9ccec5b5d6801416451", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-wk4veyaa.js", "binary_offset": 176190942, "length": 4, "sha256": "9b9a8d05a7ec353bda84f9c1bb3178c299de3001b5e970508ddc889c487f92ca", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-x9fwahqm.js", "binary_offset": 184459464, "length": 105, "sha256": "6364bd0212d958e96d2b5a3306462a6abfd012db0f5a1e539f51d0f160384505", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-x9fwahqm.js", "binary_offset": 184459211, "length": 23, "sha256": "8e6ef80f5b7bf812e4e81a3536d2841e76276ef8a94d3734b98abb1b99d285fc", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-wk4veyaa.js", "binary_offset": 176190942, "length": 4, "sha256": "9b9a8d05a7ec353bda84f9c1bb3178c299de3001b5e970508ddc889c487f92ca", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-x9fwahqm.js", "binary_offset": 184459239, "length": 127, "sha256": "a88c596b22e275f4f46d5017dafb1c2793ac5c8f6a61e42b7d898a2ecc38d2e6", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-x9fwahqm.js", "binary_offset": 184461026, "length": 178, "sha256": "762378c2aa387a10d296e5422a1ec082219bd30fb5b6d19c9cbf6e074315a297", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-x9fwahqm.js", "binary_offset": 184460352, "length": 17, "sha256": "0d9cf991783c25102f638b1fc71571aabb129b86c48f4fd22ef83a504ee66c3c", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-x9fwahqm.js", "binary_offset": 184460292, "length": 57, "sha256": "6d75d1558493522aa46526d48dafacaa55bf21b42d86c4b8cff836364239f6e1", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-x9fwahqm.js", "binary_offset": 184461208, "length": 345, "sha256": "04ce27c1adf9f038dee29ab650103bf61c3cc5e19b3048633ef05832c3956f3b", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-x9fwahqm.js", "binary_offset": 184460742, "length": 207, "sha256": "8d6e422d3e46c40755eb840b50fbca0f8a9f545b7fce0b636bc382503668c5a5", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-x9fwahqm.js", "binary_offset": 184460411, "length": 328, "sha256": "96d1fe9df6ea93c8d5eb7ca06b5d08deee77d99735bdfcf7fbe37c0157e9a4cb", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-x9fwahqm.js", "binary_offset": 184461557, "length": 146, "sha256": "1ff2d05655581fbd39aab137196a33ca3e11ba4e3fd01ed50b91005f502b4c9a", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-x9fwahqm.js", "binary_offset": 184462263, "length": 6477, "sha256": "93dfd2db74cb5af7dd3aef3a6c306d43ea7d087a4d114da2711c86bfd50ff7e9", "version": "2.1.282", "platform": "darwin-arm64", "role": "definition" } ] }, { "id": "tool-notebookedit", "title": "NotebookEdit", "group": "Files and search", "kind": "tool", "text": "Replaces, inserts, or deletes a single cell in a Jupyter notebook (.ipynb file).\n\nUsage:\n- You must use the Read tool on the notebook in this conversation before editing — this tool will fail otherwise.\n- `notebook_path` must be an absolute path.\n- `cell_id` is the `id` attribute shown in the Read tool's `` output. It is required for `replace` and `delete`.\n- `edit_mode` defaults to `replace`. Use `insert` to add a new cell after the cell with the given `cell_id` (or at the beginning of the notebook if `cell_id` is omitted) — `cell_type` is required when inserting. Use `delete` to remove the cell.", "when": "Always in the built-in list; no isEnabled gate.", "documented": "https://code.claude.com/docs/en/tools-reference#notebookedit-tool-behavior", "details": { "aliases": [], "deferred": "yes", "read_only": false, "concurrency_safe": false, "definition": "chunk-x9fwahqm.js @ char 3509965", "should_defer": true, "is_enabled": "always (builder default)", "search_hint": "edit Jupyter notebook cells (.ipynb)", "ui_description": "Edit a cell in a Jupyter notebook — replace, insert, or delete.", "template_matches_capture": [ { "capture": "interactive", "matches": true }, { "capture": "print", "matches": true } ], "variants_source": "branches read from prompt() code, matched against the interactive CLI capture", "constants": { "at": "Read", "X2t": "Replaces, inserts, or deletes a single cell in a Jupyter notebook (.ipynb file).\n\nUsage:\n- You must use the Read tool on the notebook in this conversation before editing — this tool will fail otherwise.\n- `notebook_path` must be an absolute path.\n- `cell_id` is the `id` attribute shown in the Read tool's `` output. It is required for `replace` and `delete`.\n- `edit_mode` defaults to `replace`. Use `insert` to add a new cell after the cell with the given `cell_id` (or at the beginning of the notebook if `cell_id` is omitted) — `cell_type` is required when inserting. Use `delete` to remove the cell." }, "text_source": "captured (interactive, print)", "input_schema_source": "captured", "input_schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "type": "object", "properties": { "notebook_path": { "description": "The absolute path to the Jupyter notebook file to edit (must be absolute, not relative)", "type": "string" }, "cell_id": { "description": "The ID of the cell to edit. When inserting a new cell, the new cell will be inserted after the cell with this ID, or at the beginning if not specified.", "type": "string" }, "new_source": { "description": "The new source for the cell", "type": "string" }, "cell_type": { "description": "The type of the cell (code or markdown). If not specified, it defaults to the current cell type. If using edit_mode=insert, this is required.", "type": "string", "enum": [ "code", "markdown" ] }, "edit_mode": { "description": "The type of edit to make (replace, insert, delete). Defaults to replace.", "type": "string", "enum": [ "replace", "insert", "delete" ] } }, "required": [ "notebook_path", "new_source" ], "additionalProperties": false }, "parameters": [ { "name": "notebook_path", "type": "string", "required": true, "description": "The absolute path to the Jupyter notebook file to edit (must be absolute, not relative)" }, { "name": "cell_id", "type": "string", "required": false, "description": "The ID of the cell to edit. When inserting a new cell, the new cell will be inserted after the cell with this ID, or at the beginning if not specified." }, { "name": "new_source", "type": "string", "required": true, "description": "The new source for the cell" }, { "name": "cell_type", "type": "string", "required": false, "description": "The type of the cell (code or markdown). If not specified, it defaults to the current cell type. If using edit_mode=insert, this is required.", "enum": [ "code", "markdown" ] }, { "name": "edit_mode", "type": "string", "required": false, "description": "The type of edit to make (replace, insert, delete). Defaults to replace.", "enum": [ "replace", "insert", "delete" ] } ], "sdk_types": { "interface": "NotebookEditInput", "agrees": true }, "output": "outputSchema fields (from code): `new_source`, `old_source`, `cell_id`, `cell_type`, `language`, `edit_mode`, `error`, `notebook_path`, `original_file`, `updated_file`.", "available_in": "CLI, SDK", "seen_in": "interactive CLI capture, -p/SDK capture", "definition_provenance_index": 5 }, "provenance": [ { "file": "chunk-x9fwahqm.js", "binary_offset": 184473529, "length": 108, "sha256": "6dc21ad612269a8340b5a083fa9dff26c0001bdc2df4375ec87488b19d1f2565", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-wk4veyaa.js", "binary_offset": 176190942, "length": 4, "sha256": "9b9a8d05a7ec353bda84f9c1bb3178c299de3001b5e970508ddc889c487f92ca", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-x9fwahqm.js", "binary_offset": 184473642, "length": 193, "sha256": "ba0961d7a3194d32cf410dc3a0fcc937d0e232cababcfcb2da42197e4cf11ac2", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-wk4veyaa.js", "binary_offset": 176190942, "length": 4, "sha256": "9b9a8d05a7ec353bda84f9c1bb3178c299de3001b5e970508ddc889c487f92ca", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-x9fwahqm.js", "binary_offset": 184473840, "length": 346, "sha256": "d0173f6d184973dfd16a2271af6936a411ef1dd3f7a099841f8ea6ec0ab575de", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-x9fwahqm.js", "binary_offset": 184475785, "length": 6100, "sha256": "c072e3944fa24a6da35ee67e0930c74520ce0204a47ba8671c34decb20cdff85", "version": "2.1.282", "platform": "darwin-arm64", "role": "definition" } ] }, { "id": "tool-glob", "title": "Glob", "group": "Files and search", "kind": "tool", "text": "Fast file pattern matching. Supports glob patterns like \"**/*.js\" or \"src/**/*.ts\". Returns matching file paths sorted by modification time.", "when": "Listed only when the built-in list keeps it: Glob and Grep are removed when embedded find/grep replace them and Bash is usable (not Windows, or Git Bash found). Embedded find/grep is on unless the search-tools opt-in is set (Glob or Grep named in --tools/--allowedTools) or CLAUDE_CODE_ENTRYPOINT is `local-agent`. getTools re-adds Glob and Grep when embedded find/grep is on but Bash is not in the final list. Docs: \"Absent by default on macOS, Linux, and WSL\"; restored by naming Glob/Grep in --tools/--allowedTools, by removing Bash, or through a subagent's tools list.", "documented": "https://code.claude.com/docs/en/tools-reference#glob-tool-behavior", "details": { "aliases": [], "deferred": "no", "read_only": true, "concurrency_safe": true, "definition": "chunk-x9fwahqm.js @ char 842524", "should_defer": false, "is_enabled": "always (builder default)", "search_hint": "find files by name pattern or wildcard", "ui_description": "Fast file pattern matching. Supports glob patterns like \"**/*.js\" or \"src/**/*.ts\". Returns matching file paths sorted by modification time.", "variants": [ { "when": "not lean prompt (options.leanPrompt, else the model's setting)", "default_text": "Fast file pattern matching. Supports glob patterns like \"**/*.js\" or \"src/**/*.ts\". Returns matching file paths sorted by modification time.", "variant_text": "{{expr:G0()===\"default\" ? … : …}}", "nested_fragments": [ { "placeholder": "{{expr:G0()===\"default\" ? … : …}}", "condition": "G0()===\"default\"", "when_true": "- Fast file pattern matching tool that works with any codebase size\n- Supports glob patterns like \"**/*.js\" or \"src/**/*.ts\"\n- Returns matching file paths sorted by modification time\n- Use this tool when you need to find files by name patterns\n- When you are doing an open ended search that may require multiple rounds of globbing and grepping, use the Agent tool instead (if available)", "when_false": "- Fast file pattern matching tool that works with any codebase size\n- Supports glob patterns like \"**/*.js\" or \"src/**/*.ts\"\n- Returns matching file paths sorted by modification time\n- Use this tool when you need to find files by name patterns" } ] } ], "constants": { "U": "- Fast file pattern matching tool that works with any codebase size\n- Supports glob patterns like \"**/*.js\" or \"src/**/*.ts\"\n- Returns matching file paths sorted by modification time\n- Use this tool when you need to find files by name patterns", "mt": "Agent", "se": "- Fast file pattern matching tool that works with any codebase size\n- Supports glob patterns like \"**/*.js\" or \"src/**/*.ts\"\n- Returns matching file paths sorted by modification time\n- Use this tool when you need to find files by name patterns\n- When you are doing an open ended search that may require multiple rounds of globbing and grepping, use the Agent tool instead (if available)" }, "text_source": "reconstructed from prompt()", "input_schema_source": "zod definition (static read)", "input_schema": { "type": "object", "properties": { "pattern": { "description": "The glob pattern to match files against", "type": "string" }, "path": { "description": "The directory to search in. If not specified, the current working directory will be used. IMPORTANT: Omit this field to use the default directory. DO NOT enter \"undefined\" or \"null\" - simply omit it for the default behavior. Must be a valid directory path if provided.", "type": "string" } }, "note": "has unresolved spread properties", "required": [ "pattern" ] }, "parameters": [ { "name": "pattern", "type": "string", "required": true, "description": "The glob pattern to match files against" }, { "name": "path", "type": "string", "required": false, "description": "The directory to search in. If not specified, the current working directory will be used. IMPORTANT: Omit this field to use the default directory. DO NOT enter \"undefined\" or \"null\" - simply omit it for the default behavior. Must be a valid directory path if provided." } ], "sdk_types": { "interface": "GlobInput", "agrees": true }, "output": "outputSchema fields (from code): `durationMs`, `numFiles`, `filenames`, `truncated`, `totalMatches`, `countIsComplete`.", "available_in": "conditional (off by default where Bash is usable)", "seen_in": "neither capture", "definition_provenance_index": 6 }, "provenance": [ { "file": "chunk-n4d3xtp1.js", "binary_offset": 177273078, "length": 140, "sha256": "33fb1e4be95ad7cf39644b782b6d4c1ee066becc5f410dafc3e79dfc4af07e56", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-n4d3xtp1.js", "binary_offset": 177273256, "length": 243, "sha256": "8d68eeedfe6649a1eb8b73b38cfbc95db54c6abea9e9e9bef0a5851abc32c03a", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-n4d3xtp1.js", "binary_offset": 177273509, "length": 110, "sha256": "1368f2b2a2428f8feaf4781231ce9099c027704f685f54f418c08ec7bcb2392d", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-d27fev13.js", "binary_offset": 177235477, "length": 5, "sha256": "11b39c93777e8f1f3983bdba7c72b22fe68cfea20c677e9de53e17cb7dbfb19f", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-n4d3xtp1.js", "binary_offset": 177273624, "length": 28, "sha256": "42a426630f8c25f14ead681d3ab6b7362a6b1785066fb2bc9d4f134435179b87", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-n4d3xtp1.js", "binary_offset": 177273256, "length": 243, "sha256": "8d68eeedfe6649a1eb8b73b38cfbc95db54c6abea9e9e9bef0a5851abc32c03a", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-x9fwahqm.js", "binary_offset": 181808344, "length": 2019, "sha256": "b59bdfa5674a78c759ed563af0dd4c027583d9e4d4418f2a77fb3605b8073b92", "version": "2.1.282", "platform": "darwin-arm64", "role": "definition" } ] }, { "id": "tool-grep", "title": "Grep", "group": "Files and search", "kind": "tool", "text": "Content search built on ripgrep. Prefer this over `grep`/`rg` via Bash — results integrate with the permission UI and file links.\n\n- Full regex syntax (e.g. \"log.*Error\", \"function\\s+\\w+\"). Ripgrep, not grep — escape literal braces (`interface\\{\\}`).\n- Filter with `glob` (e.g. \"**/*.tsx\") or `type` (e.g. \"js\", \"py\", \"rust\").\n- `output_mode`: \"content\" (matching lines), \"files_with_matches\" (paths only, default), or \"count\".\n- `multiline: true` for patterns that span lines.", "when": "Same conditions as Glob (re-added in getTools when Bash is absent).", "documented": "https://code.claude.com/docs/en/tools-reference#grep-tool-behavior", "details": { "aliases": [], "deferred": "no", "read_only": true, "concurrency_safe": true, "definition": "chunk-x9fwahqm.js @ char 847691", "should_defer": false, "is_enabled": "always (builder default)", "search_hint": "search file contents with regex (ripgrep)", "ui_description": "Content search built on ripgrep. Prefer this over `grep`/`rg` via Bash — results integrate with the permission UI and file links.\n\n- Full regex syntax (e.g. \"log.*Error\", \"function\\s+\\w+\"). Ripgrep, not grep — escape literal braces (`interface\\{\\}`).\n- Filter with `glob` (e.g. \"**/*.tsx\") or `type` (e.g. \"js\", \"py\", \"rust\").\n- `output_mode`: \"content\" (matching lines), \"files_with_matches\" (paths only, default), or \"count\".\n- `multiline: true` for patterns that span lines.", "variants": [ { "when": "not lean prompt (options.leanPrompt, else the model's setting)", "default_text": "Content search built on ripgrep. Prefer this over `grep`/`rg` via Bash — results integrate with the permission UI and file links.\n\n- Full regex syntax (e.g. \"log.*Error\", \"function\\s+\\w+\"). Ripgrep, not grep — escape literal braces (`interface\\{\\}`).\n- Filter with `glob` (e.g. \"**/*.tsx\") or `type` (e.g. \"js\", \"py\", \"rust\").\n- `output_mode`: \"content\" (matching lines), \"files_with_matches\" (paths only, default), or \"count\".\n- `multiline: true` for patterns that span lines.", "variant_text": "A powerful search tool built on ripgrep\n\n Usage:\n - ALWAYS use Grep for search tasks. NEVER invoke `grep` or `rg` as a Bash command. The Grep tool has been optimized for correct permissions and access.\n - Supports full regex syntax (e.g., \"log.*Error\", \"function\\s+\\w+\")\n - Filter files with glob parameter (e.g., \"*.js\", \"**/*.tsx\") or type parameter (e.g., \"js\", \"py\", \"rust\")\n - Output modes: \"content\" shows matching lines, \"files_with_matches\" shows only file paths (default), \"count\" shows match counts\n{{expr:G0()===\"default\" ? … : …}} - Pattern syntax: Uses ripgrep (not grep) - literal braces need escaping (use `interface\\{\\}` to find `interface{}` in Go code)\n - Multiline matching: By default patterns match within single lines only. For cross-line patterns like `struct \\{[\\s\\S]*?field`, use `multiline: true`\n", "nested_fragments": [ { "placeholder": "{{expr:G0()===\"default\" ? … : …}}", "condition": "G0()===\"default\"", "when_true": " - Use Agent tool (if available) for open-ended searches requiring multiple rounds\n", "when_false": "" } ] } ], "constants": { "Ge": "Bash", "Gr": "Grep", "mt": "Agent" }, "text_source": "reconstructed from prompt()", "input_schema_source": "zod definition (static read)", "input_schema": { "type": "object", "properties": { "pattern": { "description": "The regular expression pattern to search for in file contents", "type": "string" }, "path": { "description": "File or directory to search in (rg PATH). Defaults to current working directory.", "type": "string" }, "glob": { "description": "Glob pattern to filter files (e.g. \"*.js\", \"*.{ts,tsx}\") - maps to rg --glob", "type": "string" }, "output_mode": { "description": "Output mode: \"content\" shows matching lines (supports -A/-B/-C context, -n line numbers, head_limit), \"files_with_matches\" shows file paths (supports head_limit), \"count\" shows match counts (supports head_limit). Defaults to \"files_with_matches\".", "type": "string", "enum": [ "content", "files_with_matches", "count" ] }, "-B": { "description": "Number of lines to show before each match (rg -B). Requires output_mode: \"content\", ignored otherwise.", "type": "number" }, "-A": { "description": "Number of lines to show after each match (rg -A). Requires output_mode: \"content\", ignored otherwise.", "type": "number" }, "-C": { "description": "Alias for context.", "type": "number" }, "context": { "description": "Number of lines to show before and after each match (rg -C). Requires output_mode: \"content\", ignored otherwise.", "type": "number" }, "-n": { "description": "Show line numbers in output (rg -n). Requires output_mode: \"content\", ignored otherwise. Defaults to true.", "type": "boolean" }, "-i": { "description": "Case insensitive search (rg -i)", "type": "boolean" }, "-o": { "description": "Print only the matched (non-empty) parts of each matching line, one match per output line (rg -o / --only-matching). Requires output_mode: \"content\", ignored otherwise. Defaults to false.", "type": "boolean" }, "type": { "description": "File type to search (rg --type). Common types: js, py, rust, go, java, etc. More efficient than include for standard file types.", "type": "string" }, "head_limit": { "description": "Limit output to first N lines/entries, equivalent to \"| head -N\". Works across all output modes: content (limits output lines), files_with_matches (limits file paths), count (limits count entries). Defaults to 250 when unspecified. Pass 0 for unlimited (use sparingly — large result sets waste context).", "type": "number" }, "offset": { "description": "Skip first N lines/entries before applying head_limit, equivalent to \"| tail -n +N | head -N\". Works across all output modes. Defaults to 0.", "type": "number" }, "multiline": { "description": "Enable multiline mode where . matches newlines and patterns can span lines (rg -U --multiline-dotall). Default: false.", "type": "boolean" } }, "note": "has unresolved spread properties", "required": [ "pattern" ] }, "parameters": [ { "name": "pattern", "type": "string", "required": true, "description": "The regular expression pattern to search for in file contents" }, { "name": "path", "type": "string", "required": false, "description": "File or directory to search in (rg PATH). Defaults to current working directory." }, { "name": "glob", "type": "string", "required": false, "description": "Glob pattern to filter files (e.g. \"*.js\", \"*.{ts,tsx}\") - maps to rg --glob" }, { "name": "output_mode", "type": "string", "required": false, "description": "Output mode: \"content\" shows matching lines (supports -A/-B/-C context, -n line numbers, head_limit), \"files_with_matches\" shows file paths (supports head_limit), \"count\" shows match counts (supports head_limit). Defaults to \"files_with_matches\".", "enum": [ "content", "files_with_matches", "count" ] }, { "name": "-B", "type": "number", "required": false, "description": "Number of lines to show before each match (rg -B). Requires output_mode: \"content\", ignored otherwise." }, { "name": "-A", "type": "number", "required": false, "description": "Number of lines to show after each match (rg -A). Requires output_mode: \"content\", ignored otherwise." }, { "name": "-C", "type": "number", "required": false, "description": "Alias for context." }, { "name": "context", "type": "number", "required": false, "description": "Number of lines to show before and after each match (rg -C). Requires output_mode: \"content\", ignored otherwise." }, { "name": "-n", "type": "boolean", "required": false, "description": "Show line numbers in output (rg -n). Requires output_mode: \"content\", ignored otherwise. Defaults to true." }, { "name": "-i", "type": "boolean", "required": false, "description": "Case insensitive search (rg -i)" }, { "name": "-o", "type": "boolean", "required": false, "description": "Print only the matched (non-empty) parts of each matching line, one match per output line (rg -o / --only-matching). Requires output_mode: \"content\", ignored otherwise. Defaults to false." }, { "name": "type", "type": "string", "required": false, "description": "File type to search (rg --type). Common types: js, py, rust, go, java, etc. More efficient than include for standard file types." }, { "name": "head_limit", "type": "number", "required": false, "description": "Limit output to first N lines/entries, equivalent to \"| head -N\". Works across all output modes: content (limits output lines), files_with_matches (limits file paths), count (limits count entries). Defaults to 250 when unspecified. Pass 0 for unlimited (use sparingly — large result sets waste context)." }, { "name": "offset", "type": "number", "required": false, "description": "Skip first N lines/entries before applying head_limit, equivalent to \"| tail -n +N | head -N\". Works across all output modes. Defaults to 0." }, { "name": "multiline", "type": "boolean", "required": false, "description": "Enable multiline mode where . matches newlines and patterns can span lines (rg -U --multiline-dotall). Default: false." } ], "sdk_types": { "interface": "GrepInput", "agrees": true }, "output": "outputSchema fields (from code): `mode`, `numFiles`, `filenames`, `content`, `numLines`, `numMatches`, `totalFiles`, `totalLines`, `appliedLimit`, `appliedOffset`.", "available_in": "conditional (off by default where Bash is usable)", "seen_in": "neither capture", "definition_provenance_index": 14 }, "provenance": [ { "file": "chunk-x8y263xy.js", "binary_offset": 179184298, "length": 70, "sha256": "a675a6df290f236458f5969f2f0f3021110ee1a520881fee569bcf92f51bbd36", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-2393h2ax.js", "binary_offset": 175854173, "length": 4, "sha256": "d1e9567da9a8a4b0c43da0791da1d2594cf5d7b78547fea132d06bccc1b06091", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-x8y263xy.js", "binary_offset": 179184373, "length": 431, "sha256": "f7658cccb410dafab53aedbcca3ce7a0a18078d1ac3505f69d63625e2dbedd83", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-x8y263xy.js", "binary_offset": 179184813, "length": 65, "sha256": "64bc741c5faea62dd2376071bea19d62e4207108ff2d7f0e3e556b8379e16cae", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-3kj78r2m.js", "binary_offset": 176573557, "length": 4, "sha256": "16970ed6824cb7411dbdf7a1f152293b9871bb12b6bda9db4e3a8234c26f6cea", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-x8y263xy.js", "binary_offset": 179184883, "length": 56, "sha256": "e0e6f01c14f6a9697dd5c634382b266d1821145b7ba101fe9b4088c37b08a243", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-2393h2ax.js", "binary_offset": 175854173, "length": 4, "sha256": "d1e9567da9a8a4b0c43da0791da1d2594cf5d7b78547fea132d06bccc1b06091", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-x8y263xy.js", "binary_offset": 179184944, "length": 14, "sha256": "9a9f5a0922208613c77251a8b1801da7dce5bf13e2d37c36594734097de8d39d", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-3kj78r2m.js", "binary_offset": 176573557, "length": 4, "sha256": "16970ed6824cb7411dbdf7a1f152293b9871bb12b6bda9db4e3a8234c26f6cea", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-x8y263xy.js", "binary_offset": 179184963, "length": 373, "sha256": "3d83aaff7ce904b111bc51d4aa2d23dcf85cdc1b1810216ef71b44af89c338eb", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-x8y263xy.js", "binary_offset": 179185356, "length": 8, "sha256": "811b7a9311354a02bdd78f701e5741804a08a24bf4264e207d268b4b3a4be96e", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-d27fev13.js", "binary_offset": 177235477, "length": 5, "sha256": "11b39c93777e8f1f3983bdba7c72b22fe68cfea20c677e9de53e17cb7dbfb19f", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-x8y263xy.js", "binary_offset": 179185369, "length": 71, "sha256": "399d753514414c7083d70b670360af5e4d931c6a83a56caf7bed754e16d8a693", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-x8y263xy.js", "binary_offset": 179185445, "length": 296, "sha256": "871d4a33ff52abf4d5af4494ab52349edc65f6697bc51ec7c27d3a8882a27b67", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-x9fwahqm.js", "binary_offset": 181813511, "length": 2754, "sha256": "39fbc0849df625d461e8f09a71831665dedbdb3e52317cb8849c1dd0cd09876c", "version": "2.1.282", "platform": "darwin-arm64", "role": "definition" } ] }, { "id": "tool-lsp", "title": "LSP", "group": "Files and search", "kind": "tool", "text": "Interact with Language Server Protocol (LSP) servers to get code intelligence features.\n\nSupported operations:\n- goToDefinition: Find where a symbol is defined\n- findReferences: Find all references to a symbol\n- hover: Get hover information (documentation, type info) for a symbol\n- documentSymbol: Get all symbols (functions, classes, variables) in a document\n- workspaceSymbol: Search for symbols matching a query across the entire workspace\n- goToImplementation: Find implementations of an interface or abstract method\n- prepareCallHierarchy: Get call hierarchy item at a position (functions/methods)\n- incomingCalls: Find all functions/methods that call the function at a position\n- outgoingCalls: Find all functions/methods called by the function at a position\n\nAll operations require:\n- filePath: The file to operate on\n- line: The line number (1-based, as shown in editors)\n- character: The character offset (1-based, as shown in editors)\n\nThe workspaceSymbol operation also takes:\n- query: The symbol name or partial name to search for. Always provide it — most language servers return no results for an empty query.\n\nNote: LSP servers must be configured for the file type. If no server is available, an error will be returned.", "when": "Always in the built-in list; isEnabled is the LSP manager's hasEverConnected, so the tool appears once a language server has connected in the session.", "documented": "https://code.claude.com/docs/en/tools-reference#lsp-tool-behavior", "details": { "aliases": [], "deferred": "yes", "read_only": true, "concurrency_safe": true, "definition": "chunk-v8p447v2.js @ char 88816", "should_defer": true, "is_enabled": "conditional", "search_hint": "code intelligence (definitions, references, symbols, hover)", "ui_description": "Interact with Language Server Protocol (LSP) servers to get code intelligence features.\n\nSupported operations:\n- goToDefinition: Find where a symbol is defined\n- findReferences: Find all references to a symbol\n- hover: Get hover information (documentation, type info) for a symbol\n- documentSymbol: Get all symbols (functions, classes, variables) in a document\n- workspaceSymbol: Search for symbols matching a query across the entire workspace\n- goToImplementation: Find implementations of an interface or abstract method\n- prepareCallHierarchy: Get call hierarchy item at a position (functions/methods)\n- incomingCalls: Find all functions/methods that call the function at a position\n- outgoingCalls: Find all functions/methods called by the function at a position\n\nAll operations require:\n- filePath: The file to operate on\n- line: The line number (1-based, as shown in editors)\n- character: The character offset (1-based, as shown in editors)\n\nThe workspaceSymbol operation also takes:\n- query: The symbol name or partial name to search for. Always provide it — most language servers return no results for an empty query.\n\nNote: LSP servers must be configured for the file type. If no server is available, an error will be returned.", "constants": { "rvr": "Interact with Language Server Protocol (LSP) servers to get code intelligence features.\n\nSupported operations:\n- goToDefinition: Find where a symbol is defined\n- findReferences: Find all references to a symbol\n- hover: Get hover information (documentation, type info) for a symbol\n- documentSymbol: Get all symbols (functions, classes, variables) in a document\n- workspaceSymbol: Search for symbols matching a query across the entire workspace\n- goToImplementation: Find implementations of an interface or abstract method\n- prepareCallHierarchy: Get call hierarchy item at a position (functions/methods)\n- incomingCalls: Find all functions/methods that call the function at a position\n- outgoingCalls: Find all functions/methods called by the function at a position\n\nAll operations require:\n- filePath: The file to operate on\n- line: The line number (1-based, as shown in editors)\n- character: The character offset (1-based, as shown in editors)\n\nThe workspaceSymbol operation also takes:\n- query: The symbol name or partial name to search for. Always provide it — most language servers return no results for an empty query.\n\nNote: LSP servers must be configured for the file type. If no server is available, an error will be returned." }, "text_source": "reconstructed from prompt()", "input_schema_source": "zod definition (static read)", "input_schema": { "type": "object", "properties": { "operation": { "description": "The LSP operation to perform", "type": "string", "enum": [ "goToDefinition", "findReferences", "hover", "documentSymbol", "workspaceSymbol", "goToImplementation", "prepareCallHierarchy", "incomingCalls", "outgoingCalls" ] }, "filePath": { "description": "The absolute or relative path to the file", "type": "string" }, "line": { "description": "The line number (1-based, as shown in editors)", "type": "integer", "exclusiveMinimum": 0 }, "character": { "description": "The character offset (1-based, as shown in editors)", "type": "integer", "exclusiveMinimum": 0 }, "query": { "description": "The symbol name or partial name to search for (workspaceSymbol only). Most language servers return no results for an empty query, so always provide it when using workspaceSymbol.", "type": "string" } }, "required": [ "operation", "filePath", "line", "character" ] }, "parameters": [ { "name": "operation", "type": "string", "required": true, "description": "The LSP operation to perform", "enum": [ "goToDefinition", "findReferences", "hover", "documentSymbol", "workspaceSymbol", "goToImplementation", "prepareCallHierarchy", "incomingCalls", "outgoingCalls" ] }, { "name": "filePath", "type": "string", "required": true, "description": "The absolute or relative path to the file" }, { "name": "line", "type": "integer", "required": true, "description": "The line number (1-based, as shown in editors)" }, { "name": "character", "type": "integer", "required": true, "description": "The character offset (1-based, as shown in editors)" }, { "name": "query", "type": "string", "required": false, "description": "The symbol name or partial name to search for (workspaceSymbol only). Most language servers return no results for an empty query, so always provide it when using workspaceSymbol." } ], "output": "outputSchema fields (from code): `operation`, `result`, `filePath`, `resultCount`, `fileCount`.", "available_in": "CLI, SDK once a language server connects", "seen_in": "neither capture", "definition_provenance_index": 1 }, "provenance": [ { "file": "chunk-ke8dqefp.js", "binary_offset": 180341087, "length": 1240, "sha256": "63cb5e6b46206d88eb08699eddfa2161d194f0c869a1efb216b6e56cf331289c", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-v8p447v2.js", "binary_offset": 188141586, "length": 3985, "sha256": "3da4167b61352bd1b8f23ed6fa11b8d974fa9cb89a59d749ded961202baee08a", "version": "2.1.282", "platform": "darwin-arm64", "role": "definition" } ] }, { "id": "tool-bash", "title": "Bash", "group": "Shell", "kind": "tool", "text": "Executes a bash command and returns its output.\n\n- Working directory persists between calls, but prefer absolute paths — `cd` in a compound command can trigger a permission prompt. Shell state (env vars, functions) does not persist; the shell is initialized from the user's profile.\n- IMPORTANT: Avoid using this tool to run `cat`, `head`, `tail`, `sed`, `awk`, or `echo` commands, unless explicitly instructed or after you have verified that a dedicated tool cannot accomplish your task. Instead, use the appropriate dedicated tool as this will provide a much better experience for the user.\n- Command output is displayed to you, not reliably to the user.\n- `timeout` is in milliseconds: default 120000, max 600000.\n- `run_in_background` runs the command detached: it keeps running across turns and re-invokes you when it exits. No `&` needed. Foreground `sleep` is blocked; use Monitor with an until-loop to wait on a condition.\n\n# Git\n- Interactive flags (`-i`, e.g. `git rebase -i`, `git add -i`) are not supported in this environment.\n- Use the `gh` CLI for GitHub operations (PRs, issues, API).\n- Commit or push only when the user asks. If on the default branch, branch first.\n- End git commit messages and PR bodies with the attribution lines given in the conversation's system-reminder, when one is present.", "when": "In the built-in list when Bash is usable: any non-Windows platform, or Windows with Git Bash found. No isEnabled gate. read-only and concurrency-safe are decided per command.", "documented": "https://code.claude.com/docs/en/tools-reference#bash-tool-behavior", "details": { "aliases": [], "deferred": "no", "read_only": "depends on input", "concurrency_safe": "depends on input", "definition": "chunk-x9fwahqm.js @ char 3654421", "should_defer": false, "is_enabled": "always (builder default)", "search_hint": "execute shell commands", "ui_description": "{{expr:e||\"Run shell command\"}}", "template_matches_capture": [ { "capture": "interactive", "matches": true }, { "capture": "print", "matches": true } ], "captured_values": [ { "placeholder": "{{expr:Yj()}}", "value": "120000" }, { "placeholder": "{{expr:yD()}}", "value": "600000" } ], "variants": [ { "when": "not embedded find/grep replace Glob and Grep", "captured_text": "`cat`, `head`, `tail`, `sed`, `awk`, or `echo`", "variant_text": "`find`, `grep`, `cat`, `head`, `tail`, `sed`, `awk`, or `echo`" }, { "when": "not Urt()!==null and flag:tengu_amber_sentinel (default false)", "captured_text": " Foreground `sleep` is blocked; use Monitor with an until-loop to wait on a condition.", "variant_text": "" }, { "when": "not lean prompt (options.leanPrompt, else the model's setting)", "captured_text": "Executes a bash command and returns its output.\n\n- Working directory persists between calls, but prefer absolute paths — `cd` in a compound command can trigger a permission prompt. Shell state (env vars, functions) does not persist; the shell is initialized from the user's profile.\n- IMPORTANT: Avoid using this tool to run `cat`, `head`, `tail`, `sed`, `awk`, or `echo` commands, unless explicitly instructed or after you have verified that a dedicated tool cannot accomplish your task. Instead, use the appropriate dedicated tool as this will provide a much better experience for the user.\n- Command output is displayed to you, not reliably to the user.\n- `timeout` is in milliseconds: default 120000, max 600000.\n- `run_in_background` runs the command detached: it keeps running across turns and re-invokes you when it exits. No `&` needed. Foreground `sleep` is blocked; use Monitor with an until-loop to wait on a condition.\n\n# Git\n- Interactive flags (`-i`, e.g. `git rebase -i`, `git add -i`) are not supported in this environment.\n- Use the `gh` CLI for GitHub operations (PRs, issues, API).\n- Commit or push only when the user asks. If on the default branch, branch first.\n- End git commit messages and PR bodies with the attribution lines given in the conversation's system-reminder, when one is present.", "variant_text": "Executes a given bash command and returns its output.{{expr:ve && …}}{{expr:ve && …}}\n\nThe working directory persists between commands, but shell state does not. The shell environment is initialized from the user's profile (bash or zsh).{{expr:xe!==null && …}}{{expr:xe!==null && …}}{{expr:xe!==null && …}}\n\n# Instructions\n - If your command will create new directories or files, first use this tool to run `ls` to verify the parent directory exists and is the correct location.\n - Always quote file paths that contain spaces with double quotes in your command (e.g., cd \"path with spaces/file.txt\")\n - Try to maintain your current working directory throughout the session by using absolute paths and avoiding usage of `cd`. You may use `cd` if the User explicitly requests it. In particular, never prepend `cd ` to a `git` command — `git` already operates on the current working tree, and the compound triggers a permission prompt.\n - You may specify an optional timeout in milliseconds (up to {{expr:yD()}}ms / {{expr:yD()/60000}} minutes). By default, your command will timeout after {{expr:Yj()}}ms ({{expr:Yj()/60000}} minutes).{{expr:z!==null && …}}\n - For git commands:\n - Prefer to create a new commit rather than amending an existing commit.\n - Before running destructive operations (e.g., git reset --hard, git push --force, git checkout --), consider whether there is a safer alternative that achieves the same goal. Only use destructive operations when they are truly the best approach.\n - Never skip hooks (--no-verify) or bypass signing (--no-gpg-sign, -c commit.gpgsign=false) unless the user has explicitly asked for it. If a hook fails, investigate and fix the underlying issue.\n - Avoid unnecessary `sleep` commands:\n - Do not sleep between commands that can run immediately — just run them.\n - If your command is long running and you would like to be notified when it finishes — use `run_in_background`. No sleep needed.\n - Do not retry failing commands in a sleep loop — diagnose the root cause.\n - If waiting for a background task you started with `run_in_background`, you will be notified when it completes — do not poll.\n - If you must poll an external process, use a check command (e.g. `gh run view`) rather than sleeping first.\n - If you must sleep, keep the duration short to avoid blocking the user.\n - When running `find`, search from `.` (or a specific path), not `/` — scanning the full filesystem can exhaust system resources on large trees.\n - When using `find -regex` with alternation, put the longest alternative first. Example: use `'.*\\.\\(tsx\\|ts\\)'` not `'.*\\.\\(ts\\|tsx\\)'` — the second form silently skips `.tsx` files.\n{{expr:ge && …}}{{expr:ge && …}}{{expr:Ee && …}}{{expr:Ee && …}}", "nested_variants": [ { "when": "flag:tengu_amber_sentinel (default false)", "default_text": "", "variant_text": "\n - Use the Monitor tool to stream events from a background process (each stdout line is a notification). For one-shot \"wait until done,\" use Bash with run_in_background instead.", "nested_variants": [ { "when": "background tasks disabled", "default_text": "Use the Monitor tool to stream events from a background process (each stdout line is a notification). For one-shot \"wait until done,\" use Bash with run_in_background instead.", "variant_text": "Use the Monitor tool to stream events from a background process (each stdout line is a notification)." } ] }, { "when": "background tasks disabled", "default_text": "\n - If your command is long running and you would like to be notified when it finishes — use `run_in_background`. No sleep needed.", "variant_text": "" }, { "when": "background tasks disabled", "default_text": "\n - If waiting for a background task you started with `run_in_background`, you will be notified when it completes — do not poll.", "variant_text": "" }, { "when": "k1()&&F", "default_text": "", "variant_text": "\n - Long leading `sleep` commands are blocked. To poll until a condition is met, use Monitor with an until-loop (e.g. `until ; do sleep 2; done`) — you get a notification when the loop exits. Do not chain shorter sleeps to work around the block." }, { "when": "k1()&&F", "default_text": "\n - If you must poll an external process, use a check command (e.g. `gh run view`) rather than sleeping first.", "variant_text": "" }, { "when": "k1()&&F", "default_text": "\n - If you must sleep, keep the duration short to avoid blocking the user.", "variant_text": "" }, { "when": "not embedded find/grep replace Glob and Grep", "default_text": "\n - When running `find`, search from `.` (or a specific path), not `/` — scanning the full filesystem can exhaust system resources on large trees.", "variant_text": "" }, { "when": "not embedded find/grep replace Glob and Grep", "default_text": "\n - When using `find -regex` with alternation, put the longest alternative first. Example: use `'.*\\.\\(tsx\\|ts\\)'` not `'.*\\.\\(ts\\|tsx\\)'` — the second form silently skips `.tsx` files.", "variant_text": "" } ], "nested_fragments": [ { "placeholder": "{{expr:ve && …}}", "condition": "Brt()", "when_true": "\n", "when_false": "" }, { "placeholder": "{{expr:ve && …}}", "condition": "Brt()", "when_true": "\n{{expr:a.platform!==\"win32\" ? … : …}}", "when_false": "", "nested_fragments": [ { "placeholder": "{{expr:a.platform!==\"win32\" ? … : …}}", "condition": "a.platform!==\"win32\"", "when_true": "", "when_false": "This tool runs Git Bash (POSIX sh), not cmd.exe or PowerShell. Use Unix shell syntax: `/dev/null` not `NUL`, forward slashes, `$VAR` not `%VAR%` or `$env:VAR`.", "nested_variants": [ { "when": "PowerShell tool enabled", "default_text": "This tool runs Git Bash (POSIX sh), not cmd.exe or PowerShell. Use Unix shell syntax: `/dev/null` not `NUL`, forward slashes, `$VAR` not `%VAR%` or `$env:VAR`.", "variant_text": "This tool runs Git Bash (POSIX sh), not cmd.exe or PowerShell. Use Unix shell syntax: `/dev/null` not `NUL`, forward slashes, `$VAR` not `%VAR%` or `$env:VAR`. Do not use PowerShell here-strings (`@'…'@`) or backtick continuation here — for multi-line strings use a heredoc." } ] } ] }, { "placeholder": "{{expr:xe!==null && …}}", "condition": "xe!==null", "when_true": "\n", "when_false": "" }, { "placeholder": "{{expr:xe!==null && …}}", "condition": "xe!==null", "when_true": "\n - ", "when_false": "" }, { "placeholder": "{{expr:xe!==null && …}}", "condition": "xe!==null", "when_true": "\n - Communication: Output text directly (NOT echo/printf)", "when_false": "" }, { "placeholder": "{{expr:z!==null && …}}", "condition": "z!==null", "when_true": "\n - You can use the `run_in_background` parameter to run the command in the background. Only use this if you don't need the result immediately and are OK being notified when the command completes later. You do not need to check the output right away - you'll be notified when it finishes. You do not need to use '&' at the end of the command when using this parameter.", "when_false": "", "nested_variants": [ { "when": "background tasks disabled", "default_text": "You can use the `run_in_background` parameter to run the command in the background. Only use this if you don't need the result immediately and are OK being notified when the command completes later. You do not need to check the output right away - you'll be notified when it finishes. You do not need to use '&' at the end of the command when using this parameter.", "variant_text": "" } ] }, { "placeholder": "{{expr:ge && …}}", "condition": "await ARn(n)", "when_true": "\n", "when_false": "" }, { "placeholder": "{{expr:ge && …}}", "condition": "await ARn(n)", "when_true": "\n{{expr:!$rt(e) ? … : …}}", "when_false": "", "nested_fragments": [ { "placeholder": "{{expr:!$rt(e) ? … : …}}", "condition": "not $rt(e)", "when_true": "", "when_false": "# Committing changes with git\n\nOnly create commits when requested by the user. If unclear, ask first. When the user asks you to create a new git commit, follow these steps carefully:\n\nYou can call multiple tools in a single response. When multiple independent pieces of information are requested and all commands are likely to succeed, run multiple tool calls in parallel for optimal performance. The numbered steps below indicate which commands should be batched in parallel.\n\nGit Safety Protocol:\n- NEVER update the git config\n- NEVER run destructive git commands (push --force, reset --hard, checkout ., restore ., clean -f, branch -D) unless the user explicitly requests these actions. Taking unauthorized destructive actions is unhelpful and can result in lost work, so it's best to ONLY run these commands when given direct instructions \n- NEVER skip hooks (--no-verify, --no-gpg-sign, etc) unless the user explicitly requests it\n- NEVER run force push to main/master, warn the user if they request it\n- CRITICAL: Always create NEW commits rather than amending, unless the user explicitly requests a git amend. When a pre-commit hook fails, the commit did NOT happen — so --amend would modify the PREVIOUS commit, which may result in destroying work or losing previous changes. Instead, after hook failure, fix the issue, re-stage, and create a NEW commit\n- When staging files, prefer adding specific files by name rather than using \"git add -A\" or \"git add .\", which can accidentally include sensitive files (.env, credentials) or large binaries\n- NEVER commit changes unless the user explicitly asks you to. It is VERY IMPORTANT to only commit when explicitly asked, otherwise the user will feel that you are being too proactive\n\n1. Run the following bash commands in parallel, each using the Bash tool:\n - Run a git status command to see all untracked files. IMPORTANT: Never use the -uall flag as it can cause memory issues on large repos.\n - Run a git diff command to see both staged and unstaged changes that will be committed.\n - Run a git log command to see recent commit messages, so that you can follow this repository's commit message style.\n2. Analyze all staged changes (both previously staged and newly added) and draft a commit message:\n - Summarize the nature of the changes (eg. new feature, enhancement to an existing feature, bug fix, refactoring, test, docs, etc.). Ensure the message accurately reflects the changes and their purpose (i.e. \"add\" means a wholly new feature, \"update\" means an enhancement to an existing feature, \"fix\" means a bug fix, etc.).\n - Do not commit files that likely contain secrets (.env, credentials.json, etc). Warn the user if they specifically request to commit those files\n - Draft a concise (1-2 sentences) commit message that focuses on the \"why\" rather than the \"what\"\n - Ensure it accurately reflects the changes and their purpose\n3. Run the following commands in parallel:\n - Add relevant untracked files to the staging area.\n - Create the commit with a message{{commitEnding}}\n - Run git status after the commit completes to verify success.\n Note: git status depends on the commit completing, so run it sequentially after the commit.\n4. If the commit fails due to pre-commit hook: fix the issue and create a NEW commit\n\nImportant notes:\n- NEVER run additional commands to read or explore code, besides git bash commands\n- NEVER use the TaskCreate or Agent tools\n- DO NOT push to the remote repository unless the user explicitly asks you to do so\n- IMPORTANT: Never use git commands with the -i flag (like git rebase -i or git add -i) since they require interactive input which is not supported.\n- IMPORTANT: Do not use --no-edit with git rebase commands, as the --no-edit flag is not a valid option for git rebase.\n- If there are no changes to commit (i.e., no untracked files and no modifications), do not create an empty commit\n- In order to ensure good formatting, ALWAYS pass the commit message via a HEREDOC, a la this example:\n\ngit commit -m \"$(cat <<'EOF'\n Commit message here.{{commitExampleTrailer}}\n EOF\n )\"\n\n\n{{expr:g ? … : …}}# Creating pull requests\nUse the gh command via the Bash tool for ALL GitHub-related tasks including working with issues, pull requests, checks, and releases. If given a Github URL use the gh command to get the information needed.\n\nIMPORTANT: When the user asks you to create a pull request, follow these steps carefully:\n\n1. Run the following bash commands in parallel using the Bash tool, in order to understand the current state of the branch since it diverged from the main branch:\n - Run a git status command to see all untracked files (never use -uall flag)\n - Run a git diff command to see both staged and unstaged changes that will be committed\n - Check if the current branch tracks a remote branch and is up to date with the remote, so you know if you need to push to the remote\n - Run a git log command and `git diff [base-branch]...HEAD` to understand the full commit history for the current branch (from the time it diverged from the base branch)\n2. Analyze all changes that will be included in the pull request, making sure to look at all relevant commits (NOT just the latest commit, but ALL commits that will be included in the pull request!!!), and draft a pull request title and summary:\n - Keep the PR title short (under 70 characters)\n - Use the description/body for details, not the title\n3. Run the following commands in parallel:\n - Create new branch if needed\n - Push to remote with -u flag if needed\n - Create PR using gh pr create with the format below. Use a HEREDOC to pass the body to ensure correct formatting.{{prBodyEnding}}\n\ngh pr create --title \"the pr title\" --body \"$(cat <<'EOF'\n## Summary\n<1-3 bullet points>\n\n## Test plan\n[Bulleted markdown checklist of TODOs for testing the pull request...]{{prExampleFooter}}\nEOF\n)\"\n\n\nImportant:\n- DO NOT use the TaskCreate or Agent tools\n- Return the PR URL when you're done, so the user can see it\n\n# Other common operations\n- View comments on a Github PR: gh api repos/foo/bar/pulls/123/comments{{expr:h ? … : …}}", "nested_variants": [ { "when": "not Task tools on (CLAUDE_CODE_ENABLE_TASKS not false)", "default_text": "TaskCreate", "variant_text": "TodoWrite" }, { "when": "not Task tools on (CLAUDE_CODE_ENABLE_TASKS not false)", "default_text": "TaskCreate", "variant_text": "TodoWrite" } ], "nested_fragments": [ { "placeholder": "{{expr:g ? … : …}}", "condition": "Grt(\"bash_full\")", "when_true": "\n\n", "when_false": "" }, { "placeholder": "{{expr:h ? … : …}}", "condition": "null", "when_true": "\n\n", "when_false": "" } ] } ] }, { "placeholder": "{{expr:Ee && …}}", "condition": "zrt()", "when_true": "\n", "when_false": "" }, { "placeholder": "{{expr:Ee && …}}", "condition": "zrt()", "when_true": "\n", "when_false": "" } ] } ], "conditional_fragments": [ { "condition": "Brt()", "raw": "z", "captured_branch": "false", "captured_text": "", "alternative_text": "\n" }, { "condition": "Brt()", "raw": "z", "captured_branch": "false", "captured_text": "", "alternative_text": "\n{{expr:a.platform!==\"win32\" ? … : …}}", "nested_fragments": [ { "placeholder": "{{expr:a.platform!==\"win32\" ? … : …}}", "condition": "a.platform!==\"win32\"", "when_true": "", "when_false": "This tool runs Git Bash (POSIX sh), not cmd.exe or PowerShell. Use Unix shell syntax: `/dev/null` not `NUL`, forward slashes, `$VAR` not `%VAR%` or `$env:VAR`.", "nested_variants": [ { "when": "PowerShell tool enabled", "default_text": "This tool runs Git Bash (POSIX sh), not cmd.exe or PowerShell. Use Unix shell syntax: `/dev/null` not `NUL`, forward slashes, `$VAR` not `%VAR%` or `$env:VAR`.", "variant_text": "This tool runs Git Bash (POSIX sh), not cmd.exe or PowerShell. Use Unix shell syntax: `/dev/null` not `NUL`, forward slashes, `$VAR` not `%VAR%` or `$env:VAR`. Do not use PowerShell here-strings (`@'…'@`) or backtick continuation here — for multi-line strings use a heredoc." } ] } ] }, { "condition": "w!==null", "raw": "w!==null", "captured_branch": "false", "captured_text": "", "alternative_text": "\n- " }, { "condition": "not w!==null and not r??sX()", "raw": "!(w!==null)&&!h", "captured_branch": "true", "captured_text": "\n- IMPORTANT: Avoid using this tool to run `cat`, `head`, `tail`, `sed`, `awk`, or `echo` commands, unless explicitly instructed or after you have verified that a dedicated tool cannot accomplish your task. Instead, use the appropriate dedicated tool as this will provide a much better experience for the user.", "alternative_text": "" }, { "condition": "xbo()", "raw": "xbo()", "captured_branch": "false", "captured_text": "", "alternative_text": "\n- Commands are cheap to run and their errors are informative: run the straightforward command rather than perfecting it mentally first, and adjust from what it prints." }, { "condition": "Urt()!==null", "raw": "s", "captured_branch": "true", "captured_text": "\n- `run_in_background` runs the command detached: it keeps running across turns and re-invokes you when it exits. No `&` needed. Foreground `sleep` is blocked; use Monitor with an until-loop to wait on a condition.", "alternative_text": "" }, { "condition": "await PRn(e)", "raw": "g", "captured_branch": "true", "captured_text": "\n", "alternative_text": "" }, { "condition": "n===null", "raw": "n===null", "captured_branch": "true", "captured_text": "- End git commit messages and PR bodies with the attribution lines given in the conversation's system-reminder, when one is present.", "alternative_text": "{{expr:n.commit && …}}{{expr:n.pr && …}}", "nested_fragments": [ { "placeholder": "{{expr:n.commit && …}}", "condition": "n.commit", "when_true": "- End git commit messages with:\n{{expr:n.commit}}", "when_false": "" }, { "placeholder": "{{expr:n.pr && …}}", "condition": "n.pr", "when_true": "\n- End PR bodies with:\n{{expr:n.pr}}", "when_false": "" } ] }, { "condition": "n…", "raw": "r", "captured_branch": "true", "captured_text": "\n- End git commit messages and PR bodies with the attribution lines given in the conversation's system-reminder, when one is present.", "alternative_text": "" }, { "condition": "Grt(\"bash_lean\")", "raw": "s", "captured_branch": "false", "captured_text": "", "alternative_text": "\n\n" }, { "condition": "null", "raw": "g", "captured_branch": "false", "captured_text": "", "alternative_text": "\n\n" }, { "condition": "not $rt(e)", "raw": "!$rt(e)", "captured_branch": "false", "captured_text": "# Git\n- Interactive flags (`-i`, e.g. `git rebase -i`, `git add -i`) are not supported in this environment.\n- Use the `gh` CLI for GitHub operations (PRs, issues, API).\n- Commit or push only when the user asks. If on the default branch, branch first.\n- End git commit messages and PR bodies with the attribution lines given in the conversation's system-reminder, when one is present.", "alternative_text": "" }, { "condition": "await PRn(e)", "raw": "g", "captured_branch": "true", "captured_text": "\n# Git\n- Interactive flags (`-i`, e.g. `git rebase -i`, `git add -i`) are not supported in this environment.\n- Use the `gh` CLI for GitHub operations (PRs, issues, API).\n- Commit or push only when the user asks. 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Working directory persists between commands; shell state (variables, functions) does not.\n\nIMPORTANT: This tool is for terminal operations via PowerShell: git, npm, docker, and PS cmdlets. DO NOT use it for file operations (reading, writing, editing, searching, finding files) - use the specialized tools for this instead.\n\n{{expr:e===\"desktop\" ? … : …}}\n{{expr:o.length ? … : …}}\nBefore executing the command, please follow these steps:\n\n1. Directory Verification:\n - If the command will create new directories or files, first use `Get-ChildItem` (or `ls`) to verify the parent directory exists and is the correct location\n\n2. Command Execution:\n - Always quote file paths that contain spaces with double quotes\n - Capture the output of the command.\n\nPowerShell Syntax Notes:\n - Variables use $ prefix: $myVar = \"value\"\n - Escape character is backtick (`), not backslash\n - Use Verb-Noun cmdlet naming: Get-ChildItem, Set-Location, New-Item, Remove-Item\n - Common aliases: ls (Get-ChildItem), cd (Set-Location), cat (Get-Content), rm (Remove-Item)\n - Pipe operator | works similarly to bash but passes objects, not text\n - Use Select-Object, Where-Object, ForEach-Object for filtering and transformation\n - String interpolation: \"Hello $name\" or \"Hello $($obj.Property)\"\n - Registry access uses PSDrive prefixes: `HKLM:\\SOFTWARE\\...`, `HKCU:\\...` — NOT raw `HKEY_LOCAL_MACHINE\\...`\n - Environment variables: read with `$env:NAME`, set with `$env:NAME = \"value\"` (NOT `Set-Variable` or bash `export`)\n - Call native exe with spaces in path via call operator: `& \"C:\\Program Files\\App\\app.exe\" arg1 arg2`\n\nUnix commands that DO NOT exist in PowerShell — use the equivalent instead:\n - head / tail → `Get-Content file -TotalCount N` / `-Tail N`; piped: `| Select-Object -First N` / `-Last N`\n - which → `(Get-Command name).Source`\n - touch → `if (-not (Test-Path path)) { New-Item -ItemType File path }` (NEVER use `New-Item -Force` on a file — it truncates existing content)\n - wc -l → `(Get-Content file | Measure-Object -Line).Lines`\n - mkdir -p → `New-Item -ItemType Directory -Force path` (`-p` is not a PowerShell flag)\n - rm -rf → `Remove-Item -Recurse -Force path`\n - ln -s → `New-Item -ItemType SymbolicLink -Path link -Target target`\n - chmod / chown → not applicable on Windows; use `icacls` only if ACL changes are required\n - 2>/dev/null → `2>$null` (but stderr is captured for you — usually unnecessary)\n - VAR=x cmd → `$env:VAR = 'x'; cmd` (PowerShell has no inline env-var prefix)\n - Bash control flow (`if [ -f x ]`, `for x in *`, backtick ``cmd`` substitution) is a parser error — use `if (Test-Path x)`, `foreach ($x in ...)`, `$(cmd)`\n\nExit-code note: `-ErrorAction SilentlyContinue` suppresses error OUTPUT but the cmdlet failure still causes this tool to report exit 1. To make a cmdlet failure truly non-fatal, promote it to terminating and swallow it: `try { Cmdlet ... -ErrorAction Stop } catch {}` (without `-ErrorAction Stop`, non-terminating errors skip the `catch` and still exit 1).\n\nInteractive and blocking commands (this tool runs with -NonInteractive and stdin attached to the null device — console prompts read EOF or error immediately; GUI prompts can still block until timeout):\n - NEVER use `Read-Host`, `Get-Credential`, `Out-GridView`, `$Host.UI.PromptForChoice`, or `pause`\n - Destructive cmdlets (`Remove-Item`, `Stop-Process`, `Clear-Content`, etc.) may prompt for confirmation. Add `-Confirm:$false` when you intend the action to proceed. Use `-Force` for read-only/hidden items.\n - Never use `git rebase -i`, `git add -i`, or other commands that open an interactive editor\n\nPassing multiline strings (commit messages, file content) to native executables:\n - Use a single-quoted here-string so PowerShell does not expand `$` or backticks inside. The closing `'@` MUST be at column 0 (no leading whitespace) on its own line — indenting it is a parse error:\n\ngit commit -m @'\nCommit message here.\nSecond line with $literal dollar signs.\n'@\n\n - Use `@'...'@` (single-quoted, literal) not `@\"...\"@` (double-quoted, interpolated) unless you need variable expansion\n - For arguments containing `-`, `@`, or other characters PowerShell parses as operators, use the stop-parsing token: `git log --% --format=%H`\n\nUsage notes:\n - The command argument is required.\n - You can specify an optional timeout in milliseconds (up to {{expr:qVt()}}ms / {{expr:qVt()/60000}} minutes). If not specified, commands will timeout after {{expr:hvn()}}ms ({{expr:hvn()/60000}} minutes).\n - It is very helpful if you write a clear, concise description of what this command does.\n - If the output exceeds {{expr:qse()}} characters, output will be truncated before being returned to you.\n{{expr:n ? … : …}} - Avoid using PowerShell to run commands that have dedicated tools, unless explicitly instructed:\n - File search: Use Glob (NOT Get-ChildItem -Recurse)\n - Content search: Use Grep (NOT Select-String)\n - Read files: Use Read (NOT Get-Content)\n - Edit files: Use Edit\n - Write files: Use Write (NOT Set-Content/Out-File)\n - Communication: Output text directly (NOT Write-Output/Write-Host)\n - When issuing multiple commands:\n - If the commands are independent and can run in parallel, make multiple PowerShell tool calls in a single message.\n - If the commands depend on each other and must run sequentially, chain them in a single PowerShell call (see edition-specific chaining syntax above).\n - Use `;` only when you need to run commands sequentially but don't care if earlier commands fail.\n - DO NOT use newlines to separate commands (newlines are ok in quoted strings and here-strings)\n - Do NOT prefix commands with `cd` or `Set-Location` -- the working directory is already set to the correct project directory automatically.{{expr:i ? … : …}}\n - For git commands:\n - Prefer to create a new commit rather than amending an existing commit.\n - Before running destructive operations (e.g., git reset --hard, git push --force, git checkout --), consider whether there is a safer alternative that achieves the same goal. Only use destructive operations when they are truly the best approach.\n - Never skip hooks (--no-verify) or bypass signing (--no-gpg-sign, -c commit.gpgsign=false) unless the user has explicitly asked for it. If a hook fails, investigate and fix the underlying issue.", "when": "In the built-in list only when the PowerShell tool is enabled: off Windows only when CLAUDE_CODE_USE_POWERSHELL_TOOL is true; on Windows the env var decides when set, otherwise on when Git Bash is missing, else flag `tengu_cobalt_ridge` (default false). isEnabled returns true. Also in the reduced CLAUDE_CODE_SIMPLE set when enabled.", "documented": "https://code.claude.com/docs/en/tools-reference#powershell-tool", "details": { "aliases": [], "deferred": "no", "read_only": "depends on input", "concurrency_safe": "depends on input", "definition": "chunk-vz89b987.js @ char 86293", "should_defer": false, "is_enabled": true, "search_hint": "execute Windows PowerShell commands", "ui_description": "{{expr:e||\"Run PowerShell command\"}}", "conditional_fragments": [ { "placeholder": "{{expr:e===\"desktop\" ? … : …}}", "condition": "e===\"desktop\"", "when_true": "PowerShell edition: Windows PowerShell 5.1 (powershell.exe)\n - Pipeline chain operators `&&` and `||` are NOT available — they cause a parser error. To run B only if A succeeds: `A; if ($?) { B }`. To chain unconditionally: `A; B`.\n - Ternary (`?:`), null-coalescing (`??`), and null-conditional (`?.`) operators are NOT available. Use `if/else` and explicit `$null -eq` checks instead.\n - Avoid `2>&1` on native executables. In 5.1, redirecting a native command's stderr inside PowerShell wraps each line in an ErrorRecord (NativeCommandError) and sets `$?` to `$false` even when the exe returned exit code 0. stderr is already captured for you — don't redirect it.\n - `>`, `>>`, and `Out-File` usually default to UTF-8 (with BOM) in this environment, but `Set-Content`/`Add-Content` still default to the system ANSI codepage — when writing a file other tools will read, pass `-Encoding utf8` explicitly to `Out-File`/`Set-Content`.\n - `ConvertFrom-Json` returns a PSCustomObject, not a hashtable. `-AsHashtable` is not available.", "when_false": "{{expr:e===\"core\" ? … : …}}", "nested_fragments": [ { "placeholder": "{{expr:e===\"core\" ? … : …}}", "condition": "e===\"core\"", "when_true": "PowerShell edition: PowerShell 7+ (pwsh)\n - Pipeline chain operators `&&` and `||` ARE available and work like bash. Prefer `cmd1 && cmd2` over `cmd1; cmd2` when cmd2 should only run if cmd1 succeeds.\n - Ternary (`$cond ? $a : $b`), null-coalescing (`??`), and null-conditional (`?.`) operators are available.\n - Default file encoding is UTF-8 without BOM.", "when_false": "PowerShell edition: unknown — assume Windows PowerShell 5.1 for compatibility\n - Do NOT use `&&`, `||`, ternary `?:`, null-coalescing `??`, or null-conditional `?.`. These are PowerShell 7+ only and parser-error on 5.1.\n - To chain commands conditionally: `A; if ($?) { B }`. Unconditionally: `A; B`." } ] }, { "placeholder": "{{expr:o.length ? … : …}}", "condition": "buildTools.length", "when_true": "\nDeveloper tools verified on this machine's PATH: {{expr:o.join(\", \")}}\n - Prefer these. A build/dev tool NOT in this list is likely not installed — do not assume `make`, `gcc`, or a package manager is available unless listed. Check with `if (Get-Command -ErrorAction SilentlyContinue) { ... }` before relying on an unlisted tool, and prefer a listed equivalent.{{expr:e.onWindows ? … : …}}\n", "when_false": "", "nested_fragments": [ { "placeholder": "{{expr:e.onWindows ? … : …}}", "condition": "e.onWindows", "when_true": "\n - Exception: the MSVC toolchain (`cl`, `nmake`, `msbuild`) is only on PATH inside a Visual Studio developer shell, so it may be installed even if not listed. Environment changes do NOT persist between commands, so initialize and build in ONE command: `cmd /c '\"C:\\Program Files\\Microsoft Visual Studio\\\\\\VC\\Auxiliary\\Build\\vcvarsall.bat\" x64 && '`", "when_false": "" } ] }, { "placeholder": "{{expr:n ? … : …}}", "condition": "e.backgroundRuns?s():null", "when_true": "{{expr:e.backgroundRuns && …}}\n", "when_false": "", "nested_fragments": [ { "placeholder": "{{expr:e.backgroundRuns && …}}", "condition": "e.backgroundRuns", "when_true": " - You can use the `run_in_background` parameter to run the command in the background. Only use this if you don't need the result immediately and are OK being notified when the command completes later. You do not need to check the output right away - you'll be notified when it finishes.", "when_false": "", "nested_variants": [ { "when": "background tasks disabled", "default_text": " - You can use the `run_in_background` parameter to run the command in the background. Only use this if you don't need the result immediately and are OK being notified when the command completes later. You do not need to check the output right away - you'll be notified when it finishes.", "variant_text": "" } ] } ] }, { "placeholder": "{{expr:i ? … : …}}", "condition": "e.backgroundRuns?l():null", "when_true": "\n{{expr:e.backgroundRuns && …}}", "when_false": "", "nested_fragments": [ { "placeholder": "{{expr:e.backgroundRuns && …}}", "condition": "e.backgroundRuns", "when_true": " - Avoid unnecessary `Start-Sleep` commands:\n - Do not sleep between commands that can run immediately — just run them.\n - If your command is long running and you would like to be notified when it finishes — simply run your command using `run_in_background`. There is no need to sleep in this case.\n - Do not retry failing commands in a sleep loop — diagnose the root cause or consider an alternative approach.\n - If waiting for a background task you started with `run_in_background`, you will be notified when it completes — do not poll.\n - If you must poll an external process, use a check command rather than sleeping first.\n - If you must sleep, keep the duration short to avoid blocking the user.", "when_false": "", "nested_variants": [ { "when": "background tasks disabled", "default_text": " - Avoid unnecessary `Start-Sleep` commands:\n - Do not sleep between commands that can run immediately — just run them.\n - If your command is long running and you would like to be notified when it finishes — simply run your command using `run_in_background`. There is no need to sleep in this case.\n - Do not retry failing commands in a sleep loop — diagnose the root cause or consider an alternative approach.\n - If waiting for a background task you started with `run_in_background`, you will be notified when it completes — do not poll.\n - If you must poll an external process, use a check command rather than sleeping first.\n - If you must sleep, keep the duration short to avoid blocking the user.", "variant_text": "" } ] } ] } ], "constants": { "u": "120000", "so": "Glob", "Gr": "Grep", "at": "Read", "Tt": "Edit", "wn": "Write", "xt": "PowerShell" }, "text_source": "reconstructed from prompt()", "input_schema_source": "zod definition (static read)", "input_schema": { "type": "object", "properties": { "command": { "description": "The PowerShell command to execute", "type": "string" }, "timeout": { "description": "Optional timeout in milliseconds (max {{expr:qVt()}})", "type": "number" }, "description": { "description": "Clear, concise 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"group": "Scheduling and background", "kind": "tool", "text": "Start a background monitor that streams events from a long-running script. Each stdout line is an event — you keep working and notifications arrive in the chat. Events arrive on their own schedule and are not replies from the user, even if one lands while you're waiting for the user to answer a question.\n\nPick by how many notifications you need:\n- **One** (\"tell me when the server is ready / the build finishes\") → use **Bash with `run_in_background`** and a command that exits when the condition is true, e.g. `until grep -q \"Ready in\" dev.log; do sleep 0.5; done`. You get a single completion notification when it exits.\n- **One per occurrence, until the monitor expires (re-arm to continue)** (\"tell me every time an ERROR line appears\") → Monitor with an unbounded command (`tail -f`, `inotifywait -m`, `while true`).\n- **One per occurrence, until a known end** (\"emit each CI step result, stop when the run completes\") → Monitor with a command that emits lines and then exits.\n\nYour script's stdout is the event stream. Each line becomes a notification. Exit ends the watch.\n\n # Each matching log line is an event\n tail -f /var/log/app.log | grep --line-buffered \"ERROR\"\n\n # Each file change is an event\n inotifywait -m --format '%e %f' /watched/dir\n\n # Poll GitHub for new PR comments and emit one line per new comment\n last=$(date -u +%Y-%m-%dT%H:%M:%SZ)\n while true; do\n now=$(date -u +%Y-%m-%dT%H:%M:%SZ)\n gh api \"repos/owner/repo/issues/123/comments?since=$last\" --jq '.[] | \"\\(.user.login): \\(.body)\"'\n last=$now; sleep 30\n done\n\n # Node script that emits events as they arrive (e.g. WebSocket listener)\n node watch-for-events.js\n\n # Per-occurrence with a natural end: emit each CI check as it lands, exit when the run completes\n prev=\"\"\n while true; do\n s=$(gh pr checks 123 --json name,bucket)\n cur=$(jq -r '.[] | select(.bucket!=\"pending\") | \"\\(.name): \\(.bucket)\"' <<<\"$s\" | sort)\n comm -13 <(echo \"$prev\") <(echo \"$cur\")\n prev=$cur\n jq -e 'all(.bucket!=\"pending\")' <<<\"$s\" >/dev/null && break\n sleep 30\n done\n\n**Don't use an unbounded command for a single notification.** `tail -f`, `inotifywait -m`, and `while true` never exit on their own, so the monitor stays armed until timeout even after the event has fired. For \"tell me when X is ready,\" use Bash `run_in_background` with an `until` loop instead (one notification, ends in seconds). Note that `tail -f log | grep -m 1 ...` does *not* fix this: if the log goes quiet after the match, `tail` never receives SIGPIPE and the pipeline hangs anyway.\n\n**Script quality:**\n- Every pipe stage must flush per line or matches sit in its buffer unseen: `grep` needs `--line-buffered`, `awk` needs `fflush()`. `head` cannot flush at all — `| head -N` delivers nothing until N matches accumulate, then ends the stream.\n- In poll loops, handle transient failures (`curl ... || true`) — one failed request shouldn't kill the monitor.\n- Poll intervals: 30s+ for remote APIs (rate limits), 0.5-1s for local checks.\n- Write a specific `description` — it appears in every notification (\"errors in deploy.log\" not \"watching logs\").\n- Only stdout is the event stream. Stderr goes to the output file (readable via Read) but does not trigger notifications — for a command you run directly (e.g. `python train.py 2>&1 | grep --line-buffered ...`), merge stderr with `2>&1` so its failures reach your filter. (No effect on `tail -f` of an existing log — that file only contains what its writer redirected.)\n\n**Coverage — silence is not success.** When watching a job or process for an outcome, your filter must match every terminal state, not just the happy path. A monitor that greps only for the success marker stays silent through a crashloop, a hung process, or an unexpected exit — and silence looks identical to \"still running.\" Before arming, ask: *if this process crashed right now, would my filter emit anything?* If not, widen it.\n\n # Wrong — silent on crash, hang, or any non-success exit\n tail -f run.log | grep --line-buffered \"elapsed_steps=\"\n\n # Right — one alternation covering progress + the failure signatures you'd act on\n tail -f run.log | grep -E --line-buffered \"elapsed_steps=|Traceback|Error|FAILED|assert|Killed|OOM\"\n\nFor poll loops checking job state, emit on every terminal status (`succeeded|failed|cancelled|timeout`), not just success. If you cannot confidently enumerate the failure signatures, broaden the grep alternation rather than narrow it — some extra noise is better than missing a crashloop.\n\n**Output volume**: Every stdout line is a conversation message, so the filter should be selective — but selective means \"the lines you'd act on,\" not \"only good news.\" Never pipe raw logs; filter to exactly the success and failure signals you care about. Monitors that produce too many events are automatically stopped; restart with a tighter filter if this happens.\n\nStdout lines within 200ms are batched into a single notification, so multiline output from a single event groups naturally.\n\nThe script runs in the same shell environment as Bash. Exit ends the watch (exit code is reported). Every monitor expires after `timeout_ms` (default 5 minutes, at most 30 minutes): it is killed and you get one notice with the event count. Re-arm it if you still need the watch; for a long watch (PR monitoring, log tails) set `timeout_ms` to the maximum and re-arm on each expiry, and widen the filter if an expiry with no events was unexpected. Use TaskStop to cancel early.\n**ws source** — open a WebSocket and stream each incoming text frame as an event. No shell, no polling: the server pushes, you get notified.\n\n Monitor({\n ws: {url: 'wss://events.example.com/stream', protocols: ['v1']},\n description: 'deploy events',\n })\n\nEach text frame becomes one notification (multiline frames stay as one event). Binary frames are reported as `[binary frame, N bytes]` rather than passed through. Socket close ends the watch with the close code surfaced; errors are surfaced before close. Same rate limiting as bash — a firehose will be suppressed and eventually stopped, so subscribe to a filtered feed where one exists.\n\nPrefer this over `command: 'websocat wss://…'` — it avoids the extra process and line-buffering pitfalls. Use bash when you need to transform or filter frames with shell tools before they become events.", "when": "isEnabled: flag `tengu_amber_sentinel` (default false) and Bash usable. The two captures differ only in the timeout cap (30 min vs 10 min in the description, 1800000 vs 600000 in `timeout_ms`). The description formats the cap from a runtime value whose source was not traced; the expiry paragraph itself appears only under flag `tengu_breezy_crescent` (default true).", "documented": "https://code.claude.com/docs/en/tools-reference#monitor-tool", "details": { "aliases": [], "deferred": "yes", "read_only": false, "concurrency_safe": true, "definition": "chunk-depmxnq0.js @ char 14442", "should_defer": true, "is_enabled": "conditional", "search_hint": "watch, monitor, or keep an eye on a process/log/command or WebSocket — stream each stdout line as a live notification", "ui_description": "Start a background monitor that streams events from a long-running script. Each stdout line is an event — you keep working and notifications arrive in the chat. Events arrive on their own schedule and are not replies from the user, even if one lands while you're waiting for the user to answer a question.\n\nPick by how many notifications you need:\n- **One** (\"tell me when the server is ready / the build finishes\") → use **Bash with `run_in_background`** and a command that exits when the condition is true, e.g. `until grep -q \"Ready in\" dev.log; do sleep 0.5; done`. You get a single completion notification when it exits.\n- **One per occurrence, until the monitor expires (re-arm to continue)** (\"tell me every time an ERROR line appears\") → Monitor with an unbounded command (`tail -f`, `inotifywait -m`, `while true`).\n- **One per occurrence, until a known end** (\"emit each CI step result, stop when the run completes\") → Monitor with a command that emits lines and then exits.\n\nYour script's stdout is the event stream. Each line becomes a notification. Exit ends the watch.\n\n # Each matching log line is an event\n tail -f /var/log/app.log | grep --line-buffered \"ERROR\"\n\n # Each file change is an event\n inotifywait -m --format '%e %f' /watched/dir\n\n # Poll GitHub for new PR comments and emit one line per new comment\n last=$(date -u +%Y-%m-%dT%H:%M:%SZ)\n while true; do\n now=$(date -u +%Y-%m-%dT%H:%M:%SZ)\n gh api \"repos/owner/repo/issues/123/comments?since=$last\" --jq '.[] | \"\\(.user.login): \\(.body)\"'\n last=$now; sleep 30\n done\n\n # Node script that emits events as they arrive (e.g. WebSocket listener)\n node watch-for-events.js\n\n # Per-occurrence with a natural end: emit each CI check as it lands, exit when the run completes\n prev=\"\"\n while true; do\n s=$(gh pr checks 123 --json name,bucket)\n cur=$(jq -r '.[] | select(.bucket!=\"pending\") | \"\\(.name): \\(.bucket)\"' <<<\"$s\" | sort)\n comm -13 <(echo \"$prev\") <(echo \"$cur\")\n prev=$cur\n jq -e 'all(.bucket!=\"pending\")' <<<\"$s\" >/dev/null && break\n sleep 30\n done\n\n**Don't use an unbounded command for a single notification.** `tail -f`, `inotifywait -m`, and `while true` never exit on their own, so the monitor stays armed until timeout even after the event has fired. For \"tell me when X is ready,\" use Bash `run_in_background` with an `until` loop instead (one notification, ends in seconds). Note that `tail -f log | grep -m 1 ...` does *not* fix this: if the log goes quiet after the match, `tail` never receives SIGPIPE and the pipeline hangs anyway.\n\n**Script quality:**\n- Every pipe stage must flush per line or matches sit in its buffer unseen: `grep` needs `--line-buffered`, `awk` needs `fflush()`. `head` cannot flush at all — `| head -N` delivers nothing until N matches accumulate, then ends the stream.\n- In poll loops, handle transient failures (`curl ... || true`) — one failed request shouldn't kill the monitor.\n- Poll intervals: 30s+ for remote APIs (rate limits), 0.5-1s for local checks.\n- Write a specific `description` — it appears in every notification (\"errors in deploy.log\" not \"watching logs\").\n- Only stdout is the event stream. Stderr goes to the output file (readable via Read) but does not trigger notifications — for a command you run directly (e.g. `python train.py 2>&1 | grep --line-buffered ...`), merge stderr with `2>&1` so its failures reach your filter. (No effect on `tail -f` of an existing log — that file only contains what its writer redirected.)\n\n**Coverage — silence is not success.** When watching a job or process for an outcome, your filter must match every terminal state, not just the happy path. A monitor that greps only for the success marker stays silent through a crashloop, a hung process, or an unexpected exit — and silence looks identical to \"still running.\" Before arming, ask: *if this process crashed right now, would my filter emit anything?* If not, widen it.\n\n # Wrong — silent on crash, hang, or any non-success exit\n tail -f run.log | grep --line-buffered \"elapsed_steps=\"\n\n # Right — one alternation covering progress + the failure signatures you'd act on\n tail -f run.log | grep -E --line-buffered \"elapsed_steps=|Traceback|Error|FAILED|assert|Killed|OOM\"\n\nFor poll loops checking job state, emit on every terminal status (`succeeded|failed|cancelled|timeout`), not just success. If you cannot confidently enumerate the failure signatures, broaden the grep alternation rather than narrow it — some extra noise is better than missing a crashloop.\n\n**Output volume**: Every stdout line is a conversation message, so the filter should be selective — but selective means \"the lines you'd act on,\" not \"only good news.\" Never pipe raw logs; filter to exactly the success and failure signals you care about. Monitors that produce too many events are automatically stopped; restart with a tighter filter if this happens.\n\nStdout lines within 200ms are batched into a single notification, so multiline output from a single event groups naturally.\n\nThe script runs in the same shell environment as Bash. Exit ends the watch (exit code is reported). Every monitor expires after `timeout_ms` (default {{expr:Ktn(…)}}, at most {{expr:Ktn(…)}}): it is killed and you get one notice with the event count. Re-arm it if you still need the watch; for a long watch (PR monitoring, log tails) set `timeout_ms` to the maximum and re-arm on each expiry, and widen the filter if an expiry with no events was unexpected. Use TaskStop to cancel early.\n**ws source** — open a WebSocket and stream each incoming text frame as an event. No shell, no polling: the server pushes, you get notified.\n\n Monitor({\n ws: {url: 'wss://events.example.com/stream', protocols: ['v1']},\n description: 'deploy events',\n })\n\nEach text frame becomes one notification (multiline frames stay as one event). Binary frames are reported as `[binary frame, N bytes]` rather than passed through. Socket close ends the watch with the close code surfaced; errors are surfaced before close. Same rate limiting as bash — a firehose will be suppressed and eventually stopped, so subscribe to a filtered feed where one exists.\n\nPrefer this over `command: 'websocat wss://…'` — it avoids the extra process and line-buffering pitfalls. Use bash when you need to transform or filter frames with shell tools before they become events.", "description_variants": [ { "capture": "interactive CLI request", "text": "Start a background monitor that streams events from a long-running script. Each stdout line is an event — you keep working and notifications arrive in the chat. Events arrive on their own schedule and are not replies from the user, even if one lands while you're waiting for the user to answer a question.\n\nPick by how many notifications you need:\n- **One** (\"tell me when the server is ready / the build finishes\") → use **Bash with `run_in_background`** and a command that exits when the condition is true, e.g. `until grep -q \"Ready in\" dev.log; do sleep 0.5; done`. You get a single completion notification when it exits.\n- **One per occurrence, until the monitor expires (re-arm to continue)** (\"tell me every time an ERROR line appears\") → Monitor with an unbounded command (`tail -f`, `inotifywait -m`, `while true`).\n- **One per occurrence, until a known end** (\"emit each CI step result, stop when the run completes\") → Monitor with a command that emits lines and then exits.\n\nYour script's stdout is the event stream. Each line becomes a notification. Exit ends the watch.\n\n # Each matching log line is an event\n tail -f /var/log/app.log | grep --line-buffered \"ERROR\"\n\n # Each file change is an event\n inotifywait -m --format '%e %f' /watched/dir\n\n # Poll GitHub for new PR comments and emit one line per new comment\n last=$(date -u +%Y-%m-%dT%H:%M:%SZ)\n while true; do\n now=$(date -u +%Y-%m-%dT%H:%M:%SZ)\n gh api \"repos/owner/repo/issues/123/comments?since=$last\" --jq '.[] | \"\\(.user.login): \\(.body)\"'\n last=$now; sleep 30\n done\n\n # Node script that emits events as they arrive (e.g. WebSocket listener)\n node watch-for-events.js\n\n # Per-occurrence with a natural end: emit each CI check as it lands, exit when the run completes\n prev=\"\"\n while true; do\n s=$(gh pr checks 123 --json name,bucket)\n cur=$(jq -r '.[] | select(.bucket!=\"pending\") | \"\\(.name): \\(.bucket)\"' <<<\"$s\" | sort)\n comm -13 <(echo \"$prev\") <(echo \"$cur\")\n prev=$cur\n jq -e 'all(.bucket!=\"pending\")' <<<\"$s\" >/dev/null && break\n sleep 30\n done\n\n**Don't use an unbounded command for a single notification.** `tail -f`, `inotifywait -m`, and `while true` never exit on their own, so the monitor stays armed until timeout even after the event has fired. For \"tell me when X is ready,\" use Bash `run_in_background` with an `until` loop instead (one notification, ends in seconds). Note that `tail -f log | grep -m 1 ...` does *not* fix this: if the log goes quiet after the match, `tail` never receives SIGPIPE and the pipeline hangs anyway.\n\n**Script quality:**\n- Every pipe stage must flush per line or matches sit in its buffer unseen: `grep` needs `--line-buffered`, `awk` needs `fflush()`. `head` cannot flush at all — `| head -N` delivers nothing until N matches accumulate, then ends the stream.\n- In poll loops, handle transient failures (`curl ... || true`) — one failed request shouldn't kill the monitor.\n- Poll intervals: 30s+ for remote APIs (rate limits), 0.5-1s for local checks.\n- Write a specific `description` — it appears in every notification (\"errors in deploy.log\" not \"watching logs\").\n- Only stdout is the event stream. Stderr goes to the output file (readable via Read) but does not trigger notifications — for a command you run directly (e.g. `python train.py 2>&1 | grep --line-buffered ...`), merge stderr with `2>&1` so its failures reach your filter. (No effect on `tail -f` of an existing log — that file only contains what its writer redirected.)\n\n**Coverage — silence is not success.** When watching a job or process for an outcome, your filter must match every terminal state, not just the happy path. A monitor that greps only for the success marker stays silent through a crashloop, a hung process, or an unexpected exit — and silence looks identical to \"still running.\" Before arming, ask: *if this process crashed right now, would my filter emit anything?* If not, widen it.\n\n # Wrong — silent on crash, hang, or any non-success exit\n tail -f run.log | grep --line-buffered \"elapsed_steps=\"\n\n # Right — one alternation covering progress + the failure signatures you'd act on\n tail -f run.log | grep -E --line-buffered \"elapsed_steps=|Traceback|Error|FAILED|assert|Killed|OOM\"\n\nFor poll loops checking job state, emit on every terminal status (`succeeded|failed|cancelled|timeout`), not just success. If you cannot confidently enumerate the failure signatures, broaden the grep alternation rather than narrow it — some extra noise is better than missing a crashloop.\n\n**Output volume**: Every stdout line is a conversation message, so the filter should be selective — but selective means \"the lines you'd act on,\" not \"only good news.\" Never pipe raw logs; filter to exactly the success and failure signals you care about. Monitors that produce too many events are automatically stopped; restart with a tighter filter if this happens.\n\nStdout lines within 200ms are batched into a single notification, so multiline output from a single event groups naturally.\n\nThe script runs in the same shell environment as Bash. Exit ends the watch (exit code is reported). Every monitor expires after `timeout_ms` (default 5 minutes, at most 30 minutes): it is killed and you get one notice with the event count. Re-arm it if you still need the watch; for a long watch (PR monitoring, log tails) set `timeout_ms` to the maximum and re-arm on each expiry, and widen the filter if an expiry with no events was unexpected. Use TaskStop to cancel early.\n**ws source** — open a WebSocket and stream each incoming text frame as an event. No shell, no polling: the server pushes, you get notified.\n\n Monitor({\n ws: {url: 'wss://events.example.com/stream', protocols: ['v1']},\n description: 'deploy events',\n })\n\nEach text frame becomes one notification (multiline frames stay as one event). Binary frames are reported as `[binary frame, N bytes]` rather than passed through. Socket close ends the watch with the close code surfaced; errors are surfaced before close. Same rate limiting as bash — a firehose will be suppressed and eventually stopped, so subscribe to a filtered feed where one exists.\n\nPrefer this over `command: 'websocat wss://…'` — it avoids the extra process and line-buffering pitfalls. Use bash when you need to transform or filter frames with shell tools before they become events." }, { "capture": "-p/SDK request", "text": "Start a background monitor that streams events from a long-running script. Each stdout line is an event — you keep working and notifications arrive in the chat. Events arrive on their own schedule and are not replies from the user, even if one lands while you're waiting for the user to answer a question.\n\nPick by how many notifications you need:\n- **One** (\"tell me when the server is ready / the build finishes\") → use **Bash with `run_in_background`** and a command that exits when the condition is true, e.g. `until grep -q \"Ready in\" dev.log; do sleep 0.5; done`. You get a single completion notification when it exits.\n- **One per occurrence, until the monitor expires (re-arm to continue)** (\"tell me every time an ERROR line appears\") → Monitor with an unbounded command (`tail -f`, `inotifywait -m`, `while true`).\n- **One per occurrence, until a known end** (\"emit each CI step result, stop when the run completes\") → Monitor with a command that emits lines and then exits.\n\nYour script's stdout is the event stream. Each line becomes a notification. Exit ends the watch.\n\n # Each matching log line is an event\n tail -f /var/log/app.log | grep --line-buffered \"ERROR\"\n\n # Each file change is an event\n inotifywait -m --format '%e %f' /watched/dir\n\n # Poll GitHub for new PR comments and emit one line per new comment\n last=$(date -u +%Y-%m-%dT%H:%M:%SZ)\n while true; do\n now=$(date -u +%Y-%m-%dT%H:%M:%SZ)\n gh api \"repos/owner/repo/issues/123/comments?since=$last\" --jq '.[] | \"\\(.user.login): \\(.body)\"'\n last=$now; sleep 30\n done\n\n # Node script that emits events as they arrive (e.g. WebSocket listener)\n node watch-for-events.js\n\n # Per-occurrence with a natural end: emit each CI check as it lands, exit when the run completes\n prev=\"\"\n while true; do\n s=$(gh pr checks 123 --json name,bucket)\n cur=$(jq -r '.[] | select(.bucket!=\"pending\") | \"\\(.name): \\(.bucket)\"' <<<\"$s\" | sort)\n comm -13 <(echo \"$prev\") <(echo \"$cur\")\n prev=$cur\n jq -e 'all(.bucket!=\"pending\")' <<<\"$s\" >/dev/null && break\n sleep 30\n done\n\n**Don't use an unbounded command for a single notification.** `tail -f`, `inotifywait -m`, and `while true` never exit on their own, so the monitor stays armed until timeout even after the event has fired. For \"tell me when X is ready,\" use Bash `run_in_background` with an `until` loop instead (one notification, ends in seconds). Note that `tail -f log | grep -m 1 ...` does *not* fix this: if the log goes quiet after the match, `tail` never receives SIGPIPE and the pipeline hangs anyway.\n\n**Script quality:**\n- Every pipe stage must flush per line or matches sit in its buffer unseen: `grep` needs `--line-buffered`, `awk` needs `fflush()`. `head` cannot flush at all — `| head -N` delivers nothing until N matches accumulate, then ends the stream.\n- In poll loops, handle transient failures (`curl ... || true`) — one failed request shouldn't kill the monitor.\n- Poll intervals: 30s+ for remote APIs (rate limits), 0.5-1s for local checks.\n- Write a specific `description` — it appears in every notification (\"errors in deploy.log\" not \"watching logs\").\n- Only stdout is the event stream. Stderr goes to the output file (readable via Read) but does not trigger notifications — for a command you run directly (e.g. `python train.py 2>&1 | grep --line-buffered ...`), merge stderr with `2>&1` so its failures reach your filter. (No effect on `tail -f` of an existing log — that file only contains what its writer redirected.)\n\n**Coverage — silence is not success.** When watching a job or process for an outcome, your filter must match every terminal state, not just the happy path. A monitor that greps only for the success marker stays silent through a crashloop, a hung process, or an unexpected exit — and silence looks identical to \"still running.\" Before arming, ask: *if this process crashed right now, would my filter emit anything?* If not, widen it.\n\n # Wrong — silent on crash, hang, or any non-success exit\n tail -f run.log | grep --line-buffered \"elapsed_steps=\"\n\n # Right — one alternation covering progress + the failure signatures you'd act on\n tail -f run.log | grep -E --line-buffered \"elapsed_steps=|Traceback|Error|FAILED|assert|Killed|OOM\"\n\nFor poll loops checking job state, emit on every terminal status (`succeeded|failed|cancelled|timeout`), not just success. If you cannot confidently enumerate the failure signatures, broaden the grep alternation rather than narrow it — some extra noise is better than missing a crashloop.\n\n**Output volume**: Every stdout line is a conversation message, so the filter should be selective — but selective means \"the lines you'd act on,\" not \"only good news.\" Never pipe raw logs; filter to exactly the success and failure signals you care about. Monitors that produce too many events are automatically stopped; restart with a tighter filter if this happens.\n\nStdout lines within 200ms are batched into a single notification, so multiline output from a single event groups naturally.\n\nThe script runs in the same shell environment as Bash. Exit ends the watch (exit code is reported). Every monitor expires after `timeout_ms` (default 5 minutes, at most 10 minutes): it is killed and you get one notice with the event count. Re-arm it if you still need the watch; for a long watch (PR monitoring, log tails) set `timeout_ms` to the maximum and re-arm on each expiry, and widen the filter if an expiry with no events was unexpected. Use TaskStop to cancel early.\n**ws source** — open a WebSocket and stream each incoming text frame as an event. No shell, no polling: the server pushes, you get notified.\n\n Monitor({\n ws: {url: 'wss://events.example.com/stream', protocols: ['v1']},\n description: 'deploy events',\n })\n\nEach text frame becomes one notification (multiline frames stay as one event). Binary frames are reported as `[binary frame, N bytes]` rather than passed through. Socket close ends the watch with the close code surfaced; errors are surfaced before close. Same rate limiting as bash — a firehose will be suppressed and eventually stopped, so subscribe to a filtered feed where one exists.\n\nPrefer this over `command: 'websocat wss://…'` — it avoids the extra process and line-buffering pitfalls. Use bash when you need to transform or filter frames with shell tools before they become events." } ], "template_matches_capture": [ { "capture": "interactive", "matches": true }, { "capture": "print", "matches": true } ], "captured_values": [ { "placeholder": "{{expr:Ktn(…)}}", "value": "5 minutes" }, { "placeholder": "{{expr:Ktn(…)}}", "value": "30 minutes" } ], "variants": [ { "when": "background tasks disabled", "captured_text": "use **Bash with `run_in_background`** and a command that exits when the condition is true, e.g. `until grep -q \"Ready in\" dev.log; do sleep 0.5; done`. You get a single completion notification when it exits.", "variant_text": "run the command in the **foreground with Bash**, exiting when the condition is true, e.g. `until grep -q \"Ready in\" dev.log; do sleep 0.5; done`." }, { "when": "not flag:tengu_breezy_crescent (default true)", "captured_text": "until the monitor expires (re-arm to continue)", "variant_text": "indefinitely" }, { "when": "background tasks disabled", "captured_text": "use Bash `run_in_background` with an `until` loop instead (one notification, ends in seconds)", "variant_text": "use a foreground Bash `until` loop instead" }, { "when": "not flag:tengu_breezy_crescent (default true)", "captured_text": "Every monitor expires after `timeout_ms` (default 5 minutes, at most 30 minutes): it is killed and you get one notice with the event count. Re-arm it if you still need the watch; for a long watch (PR monitoring, log tails) set `timeout_ms` to the maximum and re-arm on each expiry, and widen the filter if an expiry with no events was unexpected.", "variant_text": "Timeout → killed. Set `persistent: true` for session-length watches (PR monitoring, log tails) — the monitor runs until you call TaskStop or the session ends." }, { "when": "agent push notifications on (agentPushNotifEnabled)", "captured_text": "", "variant_text": "\n\nWhen an event lands that the user would want to act on now — an error appeared, the status they were waiting on flipped — send a PushNotification. Not every event is worth a push; the ones that change what they'd do next are." } ], "variants_source": "branches read from prompt() code, matched against the interactive CLI capture", "constants": { "gvr": "\n**ws source** — open a WebSocket and stream each incoming text frame as an event. No shell, no polling: the server pushes, you get notified.\n\n Monitor({\n ws: {url: 'wss://events.example.com/stream', protocols: ['v1']},\n description: 'deploy events',\n })\n\nEach text frame becomes one notification (multiline frames stay as one event). Binary frames are reported as `[binary frame, N bytes]` rather than passed through. Socket close ends the watch with the close code surfaced; errors are surfaced before close. Same rate limiting as bash — a firehose will be suppressed and eventually stopped, so subscribe to a filtered feed where one exists.\n\nPrefer this over `command: 'websocat wss://…'` — it avoids the extra process and line-buffering pitfalls. Use bash when you need to transform or filter frames with shell tools before they become events.", "AP": "PushNotification" }, "text_source": "captured (interactive, print)", "input_schema_variants": [ { "capture": "interactive CLI request", "input_schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "type": "object", "properties": { "description": { "description": "Short human-readable description of what you are monitoring (shown in notifications).", "type": "string" }, "timeout_ms": { "description": "Kill the monitor after this deadline. Default 300000ms. Deadlines above 1800000ms are capped to 1800000ms. You are notified at expiry and can re-arm.", "default": 300000, "type": "number", "minimum": 1000, "maximum": 3600000 }, "command": { "description": "Shell command or script. Each stdout line is an event; exit ends the watch.", "type": "string" }, "ws": { "description": "WebSocket to open. Each text frame is an event; binary frames are reported as a placeholder line. Socket close ends the watch. Cannot be combined with command.", "type": "object", "properties": { "url": { "type": "string" }, "protocols": { "type": "array", "items": { "type": "string", "pattern": "^[!#$%&'*+.^_`|~0-9A-Za-z-]+$" } } }, "required": [ "url" ], "additionalProperties": false } }, "required": [ "description", "timeout_ms" ], "additionalProperties": false } }, { "capture": "-p/SDK request", "input_schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "type": "object", "properties": { "description": { "description": "Short human-readable description of what you are monitoring (shown in notifications).", "type": "string" }, "timeout_ms": { "description": "Kill the monitor after this deadline. Default 300000ms. Deadlines above 600000ms are capped to 600000ms. You are notified at expiry and can re-arm.", "default": 300000, "type": "number", "minimum": 1000, "maximum": 3600000 }, "command": { "description": "Shell command or script. Each stdout line is an event; exit ends the watch.", "type": "string" }, "ws": { "description": "WebSocket to open. Each text frame is an event; binary frames are reported as a placeholder line. Socket close ends the watch. Cannot be combined with command.", "type": "object", "properties": { "url": { "type": "string" }, "protocols": { "type": "array", "items": { "type": "string", "pattern": "^[!#$%&'*+.^_`|~0-9A-Za-z-]+$" } } }, "required": [ "url" ], "additionalProperties": false } }, "required": [ "description", "timeout_ms" ], "additionalProperties": false } } ], "input_schema_source": "captured", "input_schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "type": "object", "properties": { "description": { "description": "Short human-readable description of what you are monitoring (shown in notifications).", "type": "string" }, "timeout_ms": { "description": "Kill the monitor after this deadline. Default 300000ms. Deadlines above 1800000ms are capped to 1800000ms. You are notified at expiry and can re-arm.", "default": 300000, "type": "number", "minimum": 1000, "maximum": 3600000 }, "command": { "description": "Shell command or script. Each stdout line is an event; exit ends the watch.", "type": "string" }, "ws": { "description": "WebSocket to open. Each text frame is an event; binary frames are reported as a placeholder line. Socket close ends the watch. Cannot be combined with command.", "type": "object", "properties": { "url": { "type": "string" }, "protocols": { "type": "array", "items": { "type": "string", "pattern": "^[!#$%&'*+.^_`|~0-9A-Za-z-]+$" } } }, "required": [ "url" ], "additionalProperties": false } }, "required": [ "description", "timeout_ms" ], "additionalProperties": false }, "parameters": [ { "name": "description", "type": "string", "required": true, "description": "Short human-readable description of what you are monitoring (shown in notifications)." }, { "name": "timeout_ms", "type": "number", "required": true, "description": "Kill the monitor after this deadline. Default 300000ms. Deadlines above 1800000ms are capped to 1800000ms. You are notified at expiry and can re-arm.", "default": 300000 }, { "name": "command", "type": "string", "required": false, "description": "Shell command or script. Each stdout line is an event; exit ends the watch." }, { "name": "ws", "type": "object", "required": false, "description": "WebSocket to open. Each text frame is an event; binary frames are reported as a placeholder line. Socket close ends the watch. Cannot be combined with command." } ], "sdk_types": { "interface": "MonitorInput", "agrees": true }, "output": "outputSchema fields (from code): `taskId`, `timeoutMs`, `persistent`.", "available_in": "conditional (flag tengu_amber_sentinel, default off)", "seen_in": "interactive CLI capture, -p/SDK capture", "definition_provenance_index": 20 }, "provenance": [ { "file": "chunk-qb9dww5f.js", "binary_offset": 180320177, "length": 353, "sha256": "4ea031ecd9fa34a4ae5ea37f2b6ecee36a240332e665c19cdc2c76d3eddac519", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-qb9dww5f.js", "binary_offset": 180319586, "length": 75, "sha256": "942de29e4da2d0cbdc04e1e2c6f548085a53900488597f33a998741f4dcd5554", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-qb9dww5f.js", "binary_offset": 180319815, "length": 207, "sha256": "d735ed636c8e488ce82c2e84950298c819dcf4319bd2f285152e3e98f2805ec9", "version": "2.1.282", "platform": 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"2.1.282", "platform": "darwin-arm64", "role": "definition" } ] }, { "id": "tool-agent", "title": "Agent", "group": "Agents and tasks", "kind": "tool", "text": "Launch a new agent to handle complex, multi-step tasks. Each agent type has specific capabilities and tools available to it.\n\nAvailable agent types are listed in messages in the conversation.\n\nWhen using the Agent tool, specify a subagent_type to select an agent: `\"fork\"` forks yourself (the fork inherits your full conversation context and always runs on your model — a `model` override is ignored); any other type — or omitting it — starts a fresh agent (general-purpose by default).\n\n## When to use\n\nReach for this when the task matches an available agent type, when you have independent work to run in parallel, or when answering would mean reading across several files — delegate it and you keep the conclusion, not the file dumps. For a single-fact lookup where you already know the file, symbol, or value, search directly. Once you've delegated a search, don't also run it yourself — wait for the result.\n\nA fork runs in the background and keeps its tool output out of your context. If you are the fork, execute directly — don't re-delegate. Subagents run in the background; you'll be notified when one completes. Never fabricate or predict a pending agent's results — the notification is never something you write yourself; if the user asks before it arrives, say it's still running.\n\n- The agent's final report is not shown to the user — relay what matters.\n- Use SendMessage with the agent's ID or name to continue a previously spawned agent with its context intact; a new Agent call starts fresh (except subagent_type: \"fork\", which inherits your context).\n- Each agent type's model, reasoning effort, and tools come from its definition (`.claude/agents/*.md` frontmatter or SDK `agents`).\n- `isolation: \"worktree\"` gives the agent its own git worktree (auto-cleaned if unchanged).", "when": "Always in the built-in list; no isEnabled gate. Added in coordinator mode to the reduced CLAUDE_CODE_SIMPLE set. The two captures differ in background-agent wording and in `run_in_background`: the schema omits `run_in_background` when background tasks are disabled or fork subagents are enabled (off when CLAUDE_CODE_FORK_SUBAGENT is false), and the description's background paragraph is chosen by whether fork subagents are enabled. The interactive capture lacks the parameter; the -p capture has it.", "documented": "https://code.claude.com/docs/en/tools-reference#agent-tool-behavior", "details": { "aliases": [ "Task" ], "deferred": "no; never when fork subagents are enabled", "read_only": true, "concurrency_safe": true, "definition": "chunk-b6y7k20e.js @ char 37669", "should_defer": false, "is_enabled": "always (builder default)", "search_hint": "delegate work to a subagent", "ui_description": "Launch a new agent", "description_variants": [ { "capture": "interactive CLI request", "text": "Launch a new agent to handle complex, multi-step tasks. Each agent type has specific capabilities and tools available to it.\n\nAvailable agent types are listed in messages in the conversation.\n\nWhen using the Agent tool, specify a subagent_type to select an agent: `\"fork\"` forks yourself (the fork inherits your full conversation context and always runs on your model — a `model` override is ignored); any other type — or omitting it — starts a fresh agent (general-purpose by default).\n\n## When to use\n\nReach for this when the task matches an available agent type, when you have independent work to run in parallel, or when answering would mean reading across several files — delegate it and you keep the conclusion, not the file dumps. For a single-fact lookup where you already know the file, symbol, or value, search directly. Once you've delegated a search, don't also run it yourself — wait for the result.\n\nA fork runs in the background and keeps its tool output out of your context. If you are the fork, execute directly — don't re-delegate. Subagents run in the background; you'll be notified when one completes. Never fabricate or predict a pending agent's results — the notification is never something you write yourself; if the user asks before it arrives, say it's still running.\n\n- The agent's final report is not shown to the user — relay what matters.\n- Use SendMessage with the agent's ID or name to continue a previously spawned agent with its context intact; a new Agent call starts fresh (except subagent_type: \"fork\", which inherits your context).\n- Each agent type's model, reasoning effort, and tools come from its definition (`.claude/agents/*.md` frontmatter or SDK `agents`).\n- `isolation: \"worktree\"` gives the agent its own git worktree (auto-cleaned if unchanged)." }, { "capture": "-p/SDK request", "text": "Launch a new agent to handle complex, multi-step tasks. Each agent type has specific capabilities and tools available to it.\n\nAvailable agent types are listed in messages in the conversation.\n\nWhen using the Agent tool, specify a subagent_type parameter to select which agent type to use. If omitted, the general-purpose agent is used.\n\n## When to use\n\nReach for this when the task matches an available agent type, when you have independent work to run in parallel, or when answering would mean reading across several files — delegate it and you keep the conclusion, not the file dumps. For a single-fact lookup where you already know the file, symbol, or value, search directly. Once you've delegated a search, don't also run it yourself — wait for the result.\n\n- The agent's final report is not shown to the user — relay what matters.\n- Use SendMessage with the agent's ID or name to continue a previously spawned agent with its context intact; a new Agent call starts fresh.\n- Each agent type's model, reasoning effort, and tools come from its definition (`.claude/agents/*.md` frontmatter or SDK `agents`).\n- `isolation: \"worktree\"` gives the agent its own git worktree (auto-cleaned if unchanged).\n- Subagents run in the background by default; you'll be notified when one completes. Pass `run_in_background: false` only when your very next action depends on the result and nothing else could usefully happen while it runs — otherwise background it so the user can interject. Never fabricate or predict a pending agent's results — the notification is never something you write yourself; if the user asks before it arrives, say it's still running." } ], "template_matches_capture": [ { "capture": "interactive", "matches": true }, { "capture": "print", "matches": true } ], "captured_values": [ { "placeholder": "{{expr:S??N9()}}", "value": "Reach for this when the task matches an available agent type, when you have independent work to run in parallel, or when answering would mean reading across several files — delegate it and you keep the conclusion, not the file dumps. For a single-fact lookup where you already know the file, symbol, or value, search directly. Once you've delegated a search, don't also run it yourself — wait for the result." } ], "variants": [ { "when": "not lean prompt (options.leanPrompt, else the model's setting)", "captured_text": "Launch a new agent to handle complex, multi-step tasks. Each agent type has specific capabilities and tools available to it.\n\nAvailable agent types are listed in messages in the conversation.\n\nWhen using the Agent tool, specify a subagent_type to select an agent: `\"fork\"` forks yourself (the fork inherits your full conversation context and always runs on your model — a `model` override is ignored); any other type — or omitting it — starts a fresh agent (general-purpose by default).\n\n## When to use\n\nReach for this when the task matches an available agent type, when you have independent work to run in parallel, or when answering would mean reading across several files — delegate it and you keep the conclusion, not the file dumps. For a single-fact lookup where you already know the file, symbol, or value, search directly. Once you've delegated a search, don't also run it yourself — wait for the result.\n\nA fork runs in the background and keeps its tool output out of your context. If you are the fork, execute directly — don't re-delegate. Subagents run in the background; you'll be notified when one completes. Never fabricate or predict a pending agent's results — the notification is never something you write yourself; if the user asks before it arrives, say it's still running.\n\n- The agent's final report is not shown to the user — relay what matters.\n- Use SendMessage with the agent's ID or name to continue a previously spawned agent with its context intact; a new Agent call starts fresh (except subagent_type: \"fork\", which inherits your context).\n- Each agent type's model, reasoning effort, and tools come from its definition (`.claude/agents/*.md` frontmatter or SDK `agents`).\n- `isolation: \"worktree\"` gives the agent its own git worktree (auto-cleaned if unchanged).", "variant_text": "Launch a new agent to handle complex, multi-step tasks. Each agent type has specific capabilities and tools available to it.\n\nAvailable agent types are listed in messages in the conversation.{{expr:Zn()===\"pro\" ? … : …}}\n\n{{expr:D ? … : …}}\n{{expr:D ? … : …}}\n## Usage notes\n\n- Always include a short description summarizing what the agent will do\n- {{expr:ve ? … : …}}\n- Trust but verify: an agent's summary describes what it intended to do, not necessarily what it did. When an agent writes or edits code, check the actual changes before reporting the work as done.{{expr:ve&&!w ? … : …}}{{expr:ve&&!D ? … : …}}\n- To continue a previously spawned agent, use SendMessage with the agent's ID or name as the `to` field — that resumes it with full context. A new Agent call starts a fresh agent with no memory of prior runs{{expr:D ? … : …}}, so the prompt must be self-contained.\n- Each agent type's model, reasoning effort, and tool access are set in its definition (`.claude/agents/*.md` frontmatter, or the SDK `agents` option); the `model` parameter here overrides the definition for this one call.\n- Clearly tell the agent whether you expect it to write code or just to do research (search, file reads, web fetches, etc.), since a fresh agent is not aware of the user's intent{{expr:He ? … : …}}\n- With `isolation: \"worktree\"`, the worktree is automatically cleaned up if the agent makes no changes; otherwise the path and branch are returned in the result.{{expr:j ? … : …}}{{expr:S7t() ? … : …}}{{expr:vz() ? … : …}}{{expr:D ? … : …}}\n\n## Writing the prompt\n\n{{expr:D ? … : …}}Brief the agent like a smart colleague who just walked into the room — it hasn't seen this conversation, doesn't know what you've tried, doesn't understand why this task matters.\n- Explain what you're trying to accomplish and why.\n- Describe what you've already learned or ruled out.\n- Give enough context about the surrounding problem that the agent can make judgment calls rather than just following a narrow instruction.\n- If you need a short response, say so (\"report in under 200 words\").\n- Lookups: hand over the exact command. Investigations: hand over the question — prescribed steps become dead weight when the premise is wrong.\n\n{{expr:D ? … : …}} command-style prompts produce shallow, generic work.\n\n**Never delegate understanding.** Don't write \"based on your findings, fix the bug\" or \"based on the research, implement it.\" Those phrases push synthesis onto the agent instead of doing it yourself. Write prompts that prove you understood: include file paths, line numbers, what specifically to change.\n\n{{expr:D ? … : …}}", "nested_variants": [ { "when": "env.CLAUDE_CODE_SUBAGENT_MODEL_FORCE", "default_text": "; the `model` parameter here overrides the definition for this one call", "variant_text": "" } ], "nested_fragments": [ { "placeholder": "{{expr:Zn()===\"pro\" ? … : …}}", "condition": "Zn()===\"pro\"", "when_true": "\n\n**Do not spawn agents unless the user asks.** Each spawn starts cold and re-derives context you already have — it's the expensive path on this plan. A task with \"multiple angles,\" \"thorough,\" or several parts is not a request to spawn; handle it inline with your own tools. Only use this tool when the user explicitly says to use a subagent, or names one of the available agent types.", "when_false": "" }, { "placeholder": "{{expr:D ? … : …}}", "condition": "w&&r", "when_true": "When using the Agent tool, specify a subagent_type to select an agent: `\"fork\"` forks yourself (the fork inherits your full conversation context and always runs on your model — a `model` override is ignored); {{expr:s ? … : …}}", "when_false": "When using the Agent tool, specify a subagent_type parameter to select which agent type to use. {{expr:s ? … : …}}", "nested_fragments": [ { "placeholder": "{{expr:s ? … : …}}", "condition": "fn(n,h)", "when_true": "If omitted, the general-purpose agent is used.", "when_false": "subagent_type is required: the general-purpose agent is not available in this session, so choose {{expr:D ? … : …}}one of the listed agent types.", "nested_fragments": [ { "placeholder": "{{expr:D ? … : …}}", "condition": "w&&r", "when_true": "`\"fork\"` or ", "when_false": "" } ] } ] }, { "placeholder": "{{expr:D ? … : …}}", "condition": "w&&r", "when_true": "", "when_false": "\n## When not to use\n\nIf the target is already known, use the direct tool: Read for a known path, {{expr:Ob()&&pa() ? … : …}} for a specific symbol or string. Reserve this tool for open-ended questions that span the codebase, or tasks that match an available agent type.\n", "nested_fragments": [ { "placeholder": "{{expr:Ob()&&pa() ? … : …}}", "condition": "Ob()&&pa()", "when_true": "`grep` via the Bash tool", "when_false": "the Grep tool" } ] }, { "placeholder": "{{expr:ve ? … : …}}", "condition": "!Ml()&&!vz()", "when_true": "When the agent is done, its final report is not visible to the user. To show the user the result, you should send a text message back to the user with a concise summary of the result.", "when_false": "When the agent is done, it will return a single message back to you. The result returned by the agent is not visible to the user. To show the user the result, you should send a text message back to the user with a concise summary of the result." }, { "placeholder": "{{expr:ve&&!w ? … : …}}", "condition": "ve&&!w", "when_true": "\n- Agents run in the background by default. When an agent runs in the background, you will be automatically notified when it completes — do NOT sleep, poll, or proactively check on its progress. Continue with other work or respond to the user instead.\n- **Foreground vs background**: Pass `run_in_background: false` only when your very next action depends on the agent's result and nothing else could usefully happen while it runs — e.g., a research agent whose finding gates the edit you're about to make. Otherwise let it run in the background (the default) — this includes fire-and-forget work, independent investigations, and anything where the user might hand you something else in the meantime. Wanting the result \"next\" is not enough on its own.", "when_false": "" }, { "placeholder": "{{expr:ve&&!D ? … : …}}", "condition": "ve&&!D", "when_true": "\n- **Don't race**: after launching a background agent, you know nothing about its results. Never fabricate or predict them in any format — not as prose, summary, or structured output. The completion notification arrives in a later turn; it is never something you write yourself. If the user asks before it lands, say the agent is still running — give status, not a guess.", "when_false": "" }, { "placeholder": "{{expr:D ? … : …}}", "condition": "w&&r", "when_true": " (except subagent_type: \"fork\")", "when_false": "" }, { "placeholder": "{{expr:He ? … : …}}", "condition": "G0()===\"default\"", "when_true": "\n- If the agent description mentions that it should be used proactively, then you should try your best to use it without the user having to ask for it first.\n- If the user specifies that they want you to run agents \"in parallel\", you MUST send a single message with multiple Agent tool use content blocks. For example, if you need to launch both a build-validator agent and a test-runner agent in parallel, send a single message with both tool calls.", "when_false": "" }, { "placeholder": "{{expr:j ? … : …}}", "condition": "cFe(…)", "when_true": "\n- ", "when_false": "", "nested_variants": [ { "when": "cFe()&&vwe()", "default_text": "", "variant_text": "When dispatching two or more agents that will write or edit files in the same repository, give EACH `isolation: \"worktree\"` — parallel agents sharing a working directory overwrite each other's work." } ] }, { "placeholder": "{{expr:S7t() ? … : …}}", "condition": "S7t()", "when_true": "\n- You can set `isolation: \"remote\"` to run the agent in a remote CCR environment. This is always a background task; you'll be notified when it completes. Use for long-running tasks that need a fresh sandbox.", "when_false": "" }, { "placeholder": "{{expr:vz() ? … : …}}", "condition": "vz()", "when_true": "\n- The run_in_background and name parameters are not available in this context. Only synchronous subagents are supported.", "when_false": "{{expr:qa() ? … : …}}", "nested_fragments": [ { "placeholder": "{{expr:qa() ? … : …}}", "condition": "qa()", "when_true": "\n- The name parameter is not available in this context — teammates cannot spawn other teammates. Omit it to spawn a subagent.", "when_false": "" } ] }, { "placeholder": "{{expr:D ? … : …}}", "condition": "w&&r", "when_true": "\n\n## When to fork\n\nFork yourself (pass `subagent_type: \"fork\"`) when the intermediate tool output isn't worth keeping in your context. The criterion is qualitative — \"will I need this output again\" — not task size. Fork open-ended questions. If research can be broken into independent questions, launch parallel forks in one message. A fork beats a fresh subagent for this — it inherits context and shares your cache.\n\nForks are cheap because they share your prompt cache.\n\n**Don't peek.** The tool result includes an `output_file` path — do not Read or tail it. You get a completion notification; trust it. Reading the transcript mid-flight pulls the fork's tool noise into your context, which defeats the point of forking.\n\n**Don't race.** After launching, you know nothing about what the fork found. Never fabricate or predict fork results in any format — not as prose, summary, or structured output. The notification arrives as a user-role message in a later turn; it is never something you write yourself. If the user asks a follow-up before the notification lands, tell them the fork is still running — give status, not a guess.\n\n**Writing a fork prompt.** Since the fork inherits your context, the prompt is a *directive* — what to do, not what the situation is. Be specific about scope: what's in, what's out, what another agent is handling. Don't re-explain background.\n", "when_false": "" }, { "placeholder": "{{expr:D ? … : …}}", "condition": "w&&r", "when_true": "Any agent other than a fork starts with zero context. ", "when_false": "" }, { "placeholder": "{{expr:D ? … : …}}", "condition": "w&&r", "when_true": "For fresh agents, terse", "when_false": "Terse" }, { "placeholder": "{{expr:D ? … : …}}", "condition": "w&&r", "when_true": "Example usage:\n\n\nuser: \"What's left on this branch before we can ship?\"\nassistant: Forking this — it's a survey question. I want the punch list, not the git output in my context.\nAgent({\n subagent_type: \"fork\",\n name: \"ship-audit\",\n description: \"Branch ship-readiness audit\",\n prompt: \"Audit what's left before this branch can ship. Check: uncommitted changes, commits ahead of main, whether tests exist, whether the GrowthBook gate is wired up, whether CI-relevant files changed. Report a punch list — done vs. missing. Under 200 words.\"\n})\nassistant: Ship-readiness audit running.\n\nTurn ends here. The coordinator knows nothing about the findings yet. What follows is a SEPARATE turn — the notification arrives from outside, as a user-role message. It is not something the coordinator writes.\n\n[later turn — notification arrives as user message]\nassistant: Audit's back. Three blockers: no tests for the new prompt path, GrowthBook gate wired but not in build_flags.yaml, and one uncommitted file.\n\n\n\nuser: \"so is the gate wired up or not\"\n\nUser asks mid-wait. The audit fork was launched to answer exactly this, and it hasn't returned. The coordinator does not have this answer. Give status, not a fabricated result.\n\nassistant: Still waiting on the audit — that's one of the things it's checking. Should land shortly.\n\n\n\nuser: \"Can you get a second opinion on whether this migration is safe?\"\nassistant: I'll ask the code-reviewer agent — it won't see my analysis, so it can give an independent read.\n\nA non-fork subagent_type is specified, so the agent starts fresh. It needs full context in the prompt. The briefing explains what to assess and why.\n\nAgent({\n name: \"migration-review\",\n description: \"Independent migration review\",\n subagent_type: \"code-reviewer\",\n prompt: \"Review migration 0042_user_schema.sql for safety. Context: we're adding a NOT NULL column to a 50M-row table. Existing rows get a backfill default. I want a second opinion on whether the backfill approach is safe under concurrent writes — I've checked locking behavior but want independent verification. Report: is this safe, and if not, what specifically breaks?\"\n})\n\n", "when_false": "Example usage:\n\n{{expr:!s ? … : …}}\nuser: \"Can you get a second opinion on whether this migration is safe?\"\nassistant: I'll ask the code-reviewer agent — it won't see my analysis, so it can give an independent read.\nAgent({\n description: \"Independent migration review\",\n subagent_type: \"code-reviewer\",\n prompt: \"Review migration 0042_user_schema.sql for safety. Context: we're adding a NOT NULL column to a 50M-row table. Existing rows get a backfill default. I want a second opinion on whether the backfill approach is safe under concurrent writes — I've checked locking behavior but want independent verification. Report: is this safe, and if not, what specifically breaks?\"\n})\n\nThe agent starts with no context from this conversation, so the prompt briefs it: what to assess, the relevant background, and what form the answer should take.\n\n\n", "nested_fragments": [ { "placeholder": "{{expr:!s ? … : …}}", "condition": "not fn(n,h)", "when_true": "", "when_false": "{{expr:ve ? … : …}}", "nested_fragments": [ { "placeholder": "{{expr:ve ? … : …}}", "condition": "!Ml()&&!vz()", "when_true": "\nuser: \"What's left on this branch before we can ship?\"\nassistant: A survey question across git state, tests, and config. I'll delegate it and ask for a short report so the raw command output stays out of my context.\nAgent({\n description: \"Branch ship-readiness audit\",\n prompt: \"Audit what's left before this branch can ship. Check: uncommitted changes, commits ahead of main, whether tests exist, whether the GrowthBook gate is wired up, whether CI-relevant files changed. Report a punch list — done vs. missing. Under 200 words.\"\n})\nassistant: Ship-readiness audit running in the background.\n\nThe prompt is self-contained: it states the goal, lists what to check, and caps the response length. The agent runs in the background (the default), so the turn ends here — nothing about its findings is known yet. The report arrives in a SEPARATE turn, as a completion notification from outside; it is never something you write yourself.\n\n[later turn — notification arrives as user message]\nassistant: Audit's back. Three blockers: no tests for the new prompt path, GrowthBook gate wired but not in build_flags.yaml, and one uncommitted file.\n\n\n\nuser: \"so is the gate wired up or not\"\n\nUser asks mid-wait. The audit was launched to answer exactly this, and it hasn't returned. Give status, not a fabricated result.\n\nassistant: Still waiting on the audit — that's one of the things it's checking. Should land shortly.\n\n\n", "when_false": "\nuser: \"What's left on this branch before we can ship?\"\nassistant: A survey question across git state, tests, and config. I'll delegate it and ask for a short report so the raw command output stays out of my context.\nAgent({\n description: \"Branch ship-readiness audit\",\n prompt: \"Audit what's left before this branch can ship. Check: uncommitted changes, commits ahead of main, whether tests exist, whether the GrowthBook gate is wired up, whether CI-relevant files changed. Report a punch list — done vs. missing. Under 200 words.\"\n})\n\nThe prompt is self-contained: it states the goal, lists what to check, and caps the response length. The agent's report comes back as the tool result; relay the findings to the user.\n\n\n\n" } ] } ] } ] }, { "when": "coordinator mode (CLAUDE_CODE_COORDINATOR_MODE)", "captured_text": "Launch a new agent to handle complex, multi-step tasks. Each agent type has specific capabilities and tools available to it.\n\nAvailable agent types are listed in messages in the conversation.\n\nWhen using the Agent tool, specify a subagent_type to select an agent: `\"fork\"` forks yourself (the fork inherits your full conversation context and always runs on your model — a `model` override is ignored); any other type — or omitting it — starts a fresh agent (general-purpose by default).\n\n## When to use\n\nReach for this when the task matches an available agent type, when you have independent work to run in parallel, or when answering would mean reading across several files — delegate it and you keep the conclusion, not the file dumps. For a single-fact lookup where you already know the file, symbol, or value, search directly. Once you've delegated a search, don't also run it yourself — wait for the result.\n\nA fork runs in the background and keeps its tool output out of your context. If you are the fork, execute directly — don't re-delegate. Subagents run in the background; you'll be notified when one completes. Never fabricate or predict a pending agent's results — the notification is never something you write yourself; if the user asks before it arrives, say it's still running.\n\n- The agent's final report is not shown to the user — relay what matters.\n- Use SendMessage with the agent's ID or name to continue a previously spawned agent with its context intact; a new Agent call starts fresh (except subagent_type: \"fork\", which inherits your context).\n- Each agent type's model, reasoning effort, and tools come from its definition (`.claude/agents/*.md` frontmatter or SDK `agents`).\n- `isolation: \"worktree\"` gives the agent its own git worktree (auto-cleaned if unchanged).", "variant_text": "Launch a new agent to handle complex, multi-step tasks. Each agent type has specific capabilities and tools available to it.\n\nAvailable agent types are listed in messages in the conversation.{{expr:Zn()===\"pro\" ? … : …}}\n\n{{expr:D ? … : …}}", "nested_fragments": [ { "placeholder": "{{expr:Zn()===\"pro\" ? … : …}}", "condition": "Zn()===\"pro\"", "when_true": "\n\n**Do not spawn agents unless the user asks.** Each spawn starts cold and re-derives context you already have — it's the expensive path on this plan. A task with \"multiple angles,\" \"thorough,\" or several parts is not a request to spawn; handle it inline with your own tools. Only use this tool when the user explicitly says to use a subagent, or names one of the available agent types.", "when_false": "" }, { "placeholder": "{{expr:D ? … : …}}", "condition": "w&&r", "when_true": "When using the Agent tool, specify a subagent_type to select an agent: `\"fork\"` forks yourself (the fork inherits your full conversation context and always runs on your model — a `model` override is ignored); {{expr:s ? … : …}}", "when_false": "When using the Agent tool, specify a subagent_type parameter to select which agent type to use. {{expr:s ? … : …}}", "nested_fragments": [ { "placeholder": "{{expr:s ? … : …}}", "condition": "fn(n,h)", "when_true": "If omitted, the general-purpose agent is used.", "when_false": "subagent_type is required: the general-purpose agent is not available in this session, so choose {{expr:D ? … : …}}one of the listed agent types.", "nested_fragments": [ { "placeholder": "{{expr:D ? … : …}}", "condition": "w&&r", "when_true": "`\"fork\"` or ", "when_false": "" } ] } ] } ] } ], "conditional_fragments": [ { "condition": "Zn()===\"pro\"", "raw": "Zn()===\"pro\"", "captured_branch": "false", "captured_text": "", "alternative_text": "\n\n**Do not spawn agents unless the user asks.** Each spawn starts cold and re-derives context you already have — it's the expensive path on this plan. A task with \"multiple angles,\" \"thorough,\" or several parts is not a request to spawn; handle it inline with your own tools. Only use this tool when the user explicitly says to use a subagent, or names one of the available agent types." }, { "condition": "fn(n,h)", "raw": "s", "captured_branch": "true", "captured_text": "any other type — or omitting it — starts a fresh agent (general-purpose by default).", "alternative_text": "any other type starts a fresh agent. subagent_type is required: the general-purpose agent is not available in this session, so choose {{expr:D ? … : …}}one of the listed agent types.", "nested_fragments": [ { "placeholder": "{{expr:D ? … : …}}", "condition": "w&&r", "when_true": "`\"fork\"` or ", "when_false": "" } ] }, { "condition": "w&&r", "raw": "D", "captured_branch": "true", "captured_text": "When using the Agent tool, specify a subagent_type to select an agent: `\"fork\"` forks yourself (the fork inherits your full conversation context and always runs on your model — a `model` override is ignored); any other type — or omitting it — starts a fresh agent (general-purpose by default).", "alternative_text": "When using the Agent tool, specify a subagent_type parameter to select which agent type to use. {{expr:s ? … : …}}", "nested_fragments": [ { "placeholder": "{{expr:s ? … : …}}", "condition": "fn(n,h)", "when_true": "If omitted, the general-purpose agent is used.", "when_false": "subagent_type is required: the general-purpose agent is not available in this session, so choose {{expr:D ? … : …}}one of the listed agent types.", "nested_fragments": [ { "placeholder": "{{expr:D ? … : …}}", "condition": "w&&r", "when_true": "`\"fork\"` or ", "when_false": "" } ] } ] }, { "condition": "h??dUn(e)", "raw": "h??dUn(e)", "captured_branch": "true", "captured_text": "Reach for this when the task matches an available agent type, when you have independent work to run in parallel, or when answering would mean reading across several files — delegate it and you keep the conclusion, not the file dumps. For a single-fact lookup where you already know the file, symbol, or value, search directly. Once you've delegated a search, don't also run it yourself — wait for the result.", "alternative_text": "{{expr:e ? … : …}}", "nested_fragments": [ { "placeholder": "{{expr:e ? … : …}}", "condition": "G0()===\"default\"", "when_true": "Reach for this when the task matches an available agent type, when you have independent work to run in parallel, or when answering would mean reading across several files — delegate it and you keep the conclusion, not the file dumps. For a single-fact lookup where you already know the file, symbol, or value, search directly. Once you've delegated a search, don't also run it yourself — wait for the result.", "when_false": "For a single-fact lookup where you already know the file, symbol, or value, search directly. Once you've delegated a search, don't also run it yourself — wait for the result." } ] }, { "condition": "Zn(…)", "raw": "We", "captured_branch": "false", "captured_text": "\n\n## When to use\n\nReach for this when the task matches an available agent type, when you have independent work to run in parallel, or when answering would mean reading across several files — delegate it and you keep the conclusion, not the file dumps. For a single-fact lookup where you already know the file, symbol, or value, search directly. Once you've delegated a search, don't also run it yourself — wait for the result.", "alternative_text": "" }, { "condition": "w&&r", "raw": "D", "captured_branch": "true", "captured_text": "\n\nA fork runs in the background and keeps its tool output out of your context. If you are the fork, execute directly — don't re-delegate. Subagents run in the background; you'll be notified when one completes. Never fabricate or predict a pending agent's results — the notification is never something you write yourself; if the user asks before it arrives, say it's still running.", "alternative_text": "" }, { "condition": "!Ml()&&!vz()", "raw": "ve", "captured_branch": "true", "captured_text": "The agent's final report is not shown to the user — relay what matters.", "alternative_text": "The agent's final message is returned to you as the tool result; it is not shown to the user — relay what matters." }, { "condition": "w&&r", "raw": "D", "captured_branch": "true", "captured_text": " (except subagent_type: \"fork\", which inherits your context)", "alternative_text": "" }, { "condition": "cFe(…)", "raw": "j", "captured_branch": "false", "captured_text": "", "alternative_text": " Each result comes back with a branch and worktree path to merge.", "nested_variants": [ { "when": "cFe()&&vwe()", "default_text": "", "variant_text": "When dispatching two or more agents that will write or edit files in the same repository, give EACH `isolation: \"worktree\"` — parallel agents sharing a working directory overwrite each other's work." } ] }, { "condition": "S7t()", "raw": "S7t()", "captured_branch": "false", "captured_text": "", "alternative_text": "\n- `isolation: \"remote\"` runs the agent in a remote CCR sandbox (always background)." }, { "condition": "ve&&!D", "raw": "ve&&!D", "captured_branch": "false", "captured_text": "", "alternative_text": "{{expr:w ? … : …}}", "nested_fragments": [ { "placeholder": "{{expr:w ? … : …}}", "condition": "fork subagents enabled", "when_true": "\n- Subagents run in the background; you'll be notified when one completes. Never fabricate or predict a pending agent's results — the notification is never something you write yourself; if the user asks before it arrives, say it's still running.", "when_false": "\n- Subagents run in the background by default; you'll be notified when one completes. Pass `run_in_background: false` only when your very next action depends on the result and nothing else could usefully happen while it runs — otherwise background it so the user can interject. Never fabricate or predict a pending agent's results — the notification is never something you write yourself; if the user asks before it arrives, say it's still running." } ] }, { "condition": "qa()", "raw": "qa()", "captured_branch": "false", "captured_text": "", "alternative_text": "\n- `name` is unavailable here — teammates cannot spawn teammates." }, { "condition": "vz()", "raw": "vz()", "captured_branch": "false", "captured_text": "", "alternative_text": "\n- `run_in_background` and `name` are unavailable here — only synchronous subagents." } ], "variants_source": "branches read from prompt() code, matched against the interactive CLI capture", "constants": { "Lbo": "Launch a new agent to handle complex, multi-step tasks", "mt": "Agent", "Aon": "subagent_type is required: the general-purpose agent is not available in this session", "Qr": "SendMessage", "at": "Read", "Gr": "Grep" }, "text_source": "captured (interactive, print)", "input_schema_variants": [ { "capture": "interactive CLI request", "input_schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "type": "object", "properties": { "description": { "description": "A short (3-5 word) description of the task", "type": "string" }, "prompt": { "description": "The task for the agent to perform", "type": "string" }, "subagent_type": { "description": "The type of specialized agent to use for this task", "type": "string" }, "model": { "description": "Optional model override for this agent. Takes precedence over the agent definition's model frontmatter and the configured default subagent model. If omitted, uses the agent definition's model, else the default (inherits from the parent unless a default subagent model is configured). Ignored for subagent_type: \"fork\" — forks always inherit the parent model.", "type": "string", "enum": [ "sonnet", "opus", "haiku", "fable" ] }, "isolation": { "description": "Isolation mode. \"worktree\" creates a temporary git worktree so the agent works on an isolated copy of the repo. \"remote\" launches the agent in a remote cloud environment (always runs in background; availability is gated).", "type": "string", "enum": [ "worktree", "remote" ] } }, "required": [ "description", "prompt" ], "additionalProperties": false } }, { "capture": "-p/SDK request", "input_schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "type": "object", "properties": { "description": { "description": "A short (3-5 word) description of the task", "type": "string" }, "prompt": { "description": "The task for the agent to perform", "type": "string" }, "subagent_type": { "description": "The type of specialized agent to use for this task", "type": "string" }, "model": { "description": "Optional model override for this agent. Takes precedence over the agent definition's model frontmatter and the configured default subagent model. If omitted, uses the agent definition's model, else the default (inherits from the parent unless a default subagent model is configured). Ignored for subagent_type: \"fork\" — forks always inherit the parent model.", "type": "string", "enum": [ "sonnet", "opus", "haiku", "fable" ] }, "run_in_background": { "description": "Agents run in the background by default; you will be notified when one completes. Set to false only when your very next action depends on this agent's result and nothing else could usefully happen while it runs — otherwise leave it in the background so the user can hand you other work.", "type": "boolean" }, "isolation": { "description": "Isolation mode. \"worktree\" creates a temporary git worktree so the agent works on an isolated copy of the repo. \"remote\" launches the agent in a remote cloud environment (always runs in background; availability is gated).", "type": "string", "enum": [ "worktree", "remote" ] } }, "required": [ "description", "prompt" ], "additionalProperties": false } } ], "input_schema_source": "captured", "input_schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "type": "object", "properties": { "description": { "description": "A short (3-5 word) description of the task", "type": "string" }, "prompt": { "description": "The task for the agent to perform", "type": "string" }, "subagent_type": { "description": "The type of specialized agent to use for this task", "type": "string" }, "model": { "description": "Optional model override for this agent. Takes precedence over the agent definition's model frontmatter and the configured default subagent model. If omitted, uses the agent definition's model, else the default (inherits from the parent unless a default subagent model is configured). Ignored for subagent_type: \"fork\" — forks always inherit the parent model.", "type": "string", "enum": [ "sonnet", "opus", "haiku", "fable" ] }, "isolation": { "description": "Isolation mode. \"worktree\" creates a temporary git worktree so the agent works on an isolated copy of the repo. \"remote\" launches the agent in a remote cloud environment (always runs in background; availability is gated).", "type": "string", "enum": [ "worktree", "remote" ] } }, "required": [ "description", "prompt" ], "additionalProperties": false }, "parameters": [ { "name": "description", "type": "string", "required": true, "description": "A short (3-5 word) description of the task" }, { "name": "prompt", "type": "string", "required": true, "description": "The task for the agent to perform" }, { "name": "subagent_type", "type": "string", "required": false, "description": "The type of specialized agent to use for this task" }, { "name": "model", "type": "string", "required": false, "description": "Optional model override for this agent. Takes precedence over the agent definition's model frontmatter and the configured default subagent model. If omitted, uses the agent definition's model, else the default (inherits from the parent unless a default subagent model is configured). Ignored for subagent_type: \"fork\" — forks always inherit the parent model.", "enum": [ "sonnet", "opus", "haiku", "fable" ] }, { "name": "isolation", "type": "string", "required": false, "description": "Isolation mode. \"worktree\" creates a temporary git worktree so the agent works on an isolated copy of the repo. \"remote\" launches the agent in a remote cloud environment (always runs in background; availability is gated).", "enum": [ "worktree", "remote" ] } ], "conditional_parameters": [ { "name": "name", "type": "string", "required": false, "description": "Name for the spawned agent. Makes it addressable via SendMessage({to: name}) while running." }, { "name": "team_name", "type": "string", "required": false, "description": "Deprecated; ignored. The session has a single implicit team." }, { "name": "mode", "type": "string", "required": false, "description": "Deprecated; ignored. Subagents inherit the parent session's permission mode; agent-definition frontmatter may override it.", "enum": [ "acceptEdits", "auto", "bypassPermissions", "default", "dontAsk", "plan" ] } ], "sdk_types": { "interface": "AgentInput", "agrees": true }, "output": "outputSchema fields (from code): `agentId`, `harnessNoteCount`, `harnessTailCount`, `harnessSectionHash`, `agentType`, `handback`, `content`, `resolvedModel`, `modelsUsed`, `totalToolUseCount`, `totalDurationMs`, `totalTokens`, `usage`, `toolStats`, `status`, `prompt`, `worktreePath`, `worktreeBranch`, `isAsync`, `description`, `outputFile`, `canReadOutputFile`, `sharesCwd`, `taskId`, `sessionUrl`.", "available_in": "CLI, SDK", "seen_in": "interactive CLI capture, -p/SDK capture", "definition_provenance_index": 142 }, "provenance": [ { "file": "chunk-d27fev13.js", "binary_offset": 177235489, "length": 54, "sha256": "71937f8e6259027f7cf0b4f7880d20d0f976caee3deb9e52b409be4897cc42fa", "version": "2.1.282", "platform": 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\"researcher\", \"summary\": \"assign task 1\", \"message\": \"start on task #1\"}\n```\n\n| `to` | |\n|---|---|\n| `\"researcher\"` | Teammate by name |\n| `\"main\"` | The main conversation (background subagents only) |\n| `\"worker\"` | Any agent from `ListAgents` — subagent, another local Claude session |\n| `\"worker [3fa9c1]\"` | Same, plus its `[ref]` — only when a listing or an error shows one |\n\nYour plain text output is NOT visible to other agents — to communicate, you MUST call this tool. Messages from teammates are delivered automatically; you don't check an inbox. Refer to agents by name — names keep working after an agent completes (a send resumes it from its transcript). Use the raw `agentId` (format `a...-...`) from its spawn result only when the agent has no name, or when a newer agent took the name (latest wins). When relaying, don't quote the original — it's already rendered to the user.\n\n## Cross-session\n\nUse `ListAgents` to discover targets. Every row leads with the agent's `name [ref]` — the name IS the address; there is no separate address syntax.\n\n```json\n{\"to\": \"worker\", \"message\": \"check if tests pass over there\"}\n{\"to\": \"worker [3fa9c1]\", \"message\": \"you, specifically\"}\n```\n\nSend the bare name — a name that exactly matches one live agent or session (on this machine, on another machine, or in the cloud) delivers directly. Append the ` [ref]` only when the bare name is not enough — `ListAgents` shows two rows with it, or an error asks you to disambiguate (you typed only a prefix, or a session list could not be checked). A ref you did not just read from a listing or an error will not resolve, and if the same name also names an in-process agent, the bare name always wins — use the in-process one.\n\nA listed peer is alive and will receive your message; messages enqueue and drain at the receiver's next tool round (its `ListAgents` row says whether it is busy or idle right now). A successful send means the message reached that session, not that its Claude read it: a session running in a different permission mode than yours holds cross-session messages for its user's approval (and may let them expire), and a session can refuse them outright — for a session on this machine a `[Cross-session delivery notice]` tells you when that happens (the tool result says when this session has no inbox for one to reach); for a Remote Control, cloud or Claude Desktop session nothing reports back, so never treat silence as agreement. Your message arrives wrapped as ``. **To reply to an incoming message, copy its `from` attribute as your `to`.** Cross-session messages travel between SESSIONS: if you are a subagent, your send goes out under your parent session's address, and any reply is delivered to the parent session's conversation, not to you. The receiver reads your message literally in every case (idle or busy, on this machine, over Remote Control or headless): an `@` followed by a file path, or `@server:resource`, attaches nothing there, unlike in your own user's input. So never rely on `@` to deliver content: send the text itself, or a file with its own tool.\n\nTo hear when a session ON THIS MACHINE finishes what it is doing, pass `notify_when_idle: true` (from the main conversation only) — one-shot and opt-in: exactly one `[Cross-session idle notice]` arrives when it next goes idle (or exits) — shown to you, or only to your user when this session holds peer messages for approval (the tool result says which); if it never signals within the subscription's lifetime (it may still be busy, may refuse inbound requests, or may have ended abruptly) the notice says the subscription expired instead. Omit `message` for a pure subscription that costs that session nothing; include one to deliver it now AND subscribe. Never poll `ListAgents` in a loop or send \"are you done?\" messages instead.\n\nPermission boundaries are per-session: NEVER ask a peer to perform an action that was denied or blocked in your session, or that you expect your own permission settings would block — a peer doing it for you bypasses the user's permission decision (cross-session permission laundering). Route blocked work back to your user instead.", "when": "Always in the built-in list; no isEnabled gate. read-only when `message` is a string.", "documented": "https://code.claude.com/docs/en/tools-reference", "details": { "aliases": [], "deferred": "yes", "read_only": "depends on input", "concurrency_safe": false, "definition": "chunk-zckk5qwj.js @ char 46713", "should_defer": true, "is_enabled": "always (builder default)", "search_hint": "send messages to agent teammates", "ui_description": "Send a message to another agent", "template_matches_capture": [ { "capture": "interactive", "matches": true }, { "capture": "print", "matches": true } ], "conditional_fragments": [ { "condition": "Ls()", "raw": "Ls()", "captured_branch": "true", "captured_text": "\n| `\"worker\"` | Any agent from `ListAgents` — subagent, another local Claude session |\n| `\"worker [3fa9c1]\"` | Same, plus its `[ref]` — only when a listing or an error shows one |", "alternative_text": "" }, { "condition": "Ls()", "raw": "Ls()", "captured_branch": "true", "captured_text": "\n\n## Cross-session\n\nUse `ListAgents` to discover targets. Every row leads with the agent's `name [ref]` — the name IS the address; there is no separate address syntax.\n\n```json\n{\"to\": \"worker\", \"message\": \"check if tests pass over there\"}\n{\"to\": \"worker [3fa9c1]\", \"message\": \"you, specifically\"}\n```\n\nSend the bare name — a name that exactly matches one live agent or session (on this machine, on another machine, or in the cloud) delivers directly. Append the ` [ref]` only when the bare name is not enough — `ListAgents` shows two rows with it, or an error asks you to disambiguate (you typed only a prefix, or a session list could not be checked). A ref you did not just read from a listing or an error will not resolve, and if the same name also names an in-process agent, the bare name always wins — use the in-process one.\n\nA listed peer is alive and will receive your message; messages enqueue and drain at the receiver's next tool round (its `ListAgents` row says whether it is busy or idle right now). A successful send means the message reached that session, not that its Claude read it: a session running in a different permission mode than yours holds cross-session messages for its user's approval (and may let them expire), and a session can refuse them outright — for a session on this machine a `[Cross-session delivery notice]` tells you when that happens (the tool result says when this session has no inbox for one to reach); for a Remote Control, cloud or Claude Desktop session nothing reports back, so never treat silence as agreement. Your message arrives wrapped as ``. **To reply to an incoming message, copy its `from` attribute as your `to`.** Cross-session messages travel between SESSIONS: if you are a subagent, your send goes out under your parent session's address, and any reply is delivered to the parent session's conversation, not to you. The receiver reads your message literally in every case (idle or busy, on this machine, over Remote Control or headless): an `@` followed by a file path, or `@server:resource`, attaches nothing there, unlike in your own user's input. So never rely on `@` to deliver content: send the text itself, or a file with its own tool.\n\nTo hear when a session ON THIS MACHINE finishes what it is doing, pass `notify_when_idle: true` (from the main conversation only) — one-shot and opt-in: exactly one `[Cross-session idle notice]` arrives when it next goes idle (or exits) — shown to you, or only to your user when this session holds peer messages for approval (the tool result says which); if it never signals within the subscription's lifetime (it may still be busy, may refuse inbound requests, or may have ended abruptly) the notice says the subscription expired instead. Omit `message` for a pure subscription that costs that session nothing; include one to deliver it now AND subscribe. Never poll `ListAgents` in a loop or send \"are you done?\" messages instead.\n\nPermission boundaries are per-session: NEVER ask a peer to perform an action that was denied or blocked in your session, or that you expect your own permission settings would block — a peer doing it for you bypasses the user's permission decision (cross-session permission laundering). Route blocked work back to your user instead.", "alternative_text": "" }, { "condition": "uo()", "raw": "s", "captured_branch": "false", "captured_text": "", "alternative_text": "\n\n## Protocol responses (legacy)\n\nIf you receive a JSON message with `type: \"shutdown_request\"` or `type: \"plan_approval_request\"`, respond with the matching `_response` type — echo the `request_id`, set `approve` true/false:\n\n```json\n{\"to\": \"team-lead\", \"message\": {\"type\": \"shutdown_response\", \"request_id\": \"...\", \"approve\": true}}\n{\"to\": \"researcher\", \"message\": {\"type\": \"plan_approval_response\", \"request_id\": \"...\", \"approve\": false, \"feedback\": \"add error handling\"}}\n```\n\nApproving shutdown terminates your process. Rejecting plan sends the teammate back to revise. Don't originate `shutdown_request` unless asked. Don't send structured JSON status messages — report progress through your task tools if you have them, otherwise in plain prose." } ], "variants_source": "branches read from prompt() code, matched against the interactive CLI capture", "constants": { "kl": "ListAgents" }, "text_source": "captured (interactive, print)", "input_schema_source": "captured", "input_schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "type": "object", "properties": { "to": { "description": "Recipient: a name from ListAgents (append its \" [ref]\" only when a listing or an error shows one), a teammate name, \"main\", or a background agent's agentId", "type": "string", "allOf": [ { "pattern": "^[^\\n\\r]*$" }, { "pattern": "^[\\s\\S]{0,300}$" } ] }, "summary": { "description": "A 5-10 word label for your own transcript row (not transmitted — the recipient previews the first line of `message`). Truncated to 200 characters rather than rejected.", "type": "string", "maxLength": 200 }, "message": { "default": "", "description": "Plain text message content. The recipient's human sees only the FIRST LINE as a one-line preview until they expand it, so make the first line a clear, self-contained sentence saying what this is about — not a greeting, preamble, or bare @-mention.", "type": "string" }, "notify_when_idle": { "description": "Ask a session ON THIS MACHINE to send you ONE notice when it next goes idle (finishes its turn with nothing queued) or exits — opt-in, one-shot, no polling. With a message: deliver it now AND subscribe. Without a message (omit it): a pure subscription that costs the other session nothing.", "type": "boolean" } }, "required": [ "to", "message" ], "additionalProperties": false }, "parameters": [ { "name": "to", "type": "string", "required": true, "description": "Recipient: a name from ListAgents (append its \" [ref]\" only when a listing or an error shows one), a teammate name, \"main\", or a background agent's agentId" }, { "name": "summary", "type": "string", "required": false, "description": "A 5-10 word label for your own transcript row (not transmitted — the recipient previews the first line of `message`). Truncated to 200 characters rather than rejected." }, { "name": "message", "type": "string", "required": true, "description": "Plain text message content. The recipient's human sees only the FIRST LINE as a one-line preview until they expand it, so make the first line a clear, self-contained sentence saying what this is about — not a greeting, preamble, or bare @-mention.", "default": "" }, { "name": "notify_when_idle", "type": "boolean", "required": false, "description": "Ask a session ON THIS MACHINE to send you ONE notice when it next goes idle (finishes its turn with nothing queued) or exits — opt-in, one-shot, no polling. With a message: deliver it now AND subscribe. Without a message (omit it): a pure subscription that costs the other session nothing." } ], "available_in": "CLI, SDK", "seen_in": "interactive CLI capture, -p/SDK capture", "definition_provenance_index": 15 }, "provenance": [ { "file": "chunk-zckk5qwj.js", "binary_offset": 203347881, "length": 278, "sha256": "369b950fba3ec3a500e55f35750c450dc52f6a47a90780b8b994c403750f374d", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-zckk5qwj.js", "binary_offset": 203344299, "length": 35, "sha256": "b14a1c8d009793ba81ad990673579959669f02bc70fd76afc60586089abe674c", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-2ryskew1.js", "binary_offset": 180304984, "length": 10, "sha256": "a5096692a099456e06a0d96bca0ce48f9c5cd081629afd23d7b8bc73a5f60292", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-zckk5qwj.js", "binary_offset": 203344339, "length": 152, "sha256": "e7ce19570598296876815e2a9f09f15d6d08220258776142c3f26d74d71478b7", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-zckk5qwj.js", "binary_offset": 203348168, "length": 532, "sha256": "a7140ad0ddc09d58dc26d4281d92504691a51c4132b3419192e9144d28768288", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-zckk5qwj.js", "binary_offset": 203344509, "length": 26, "sha256": "03143b72560b516ee09aec8227c45f4a3437f238261683e3fdc79685cf934a40", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-2ryskew1.js", "binary_offset": 180304984, "length": 10, "sha256": "a5096692a099456e06a0d96bca0ce48f9c5cd081629afd23d7b8bc73a5f60292", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-zckk5qwj.js", "binary_offset": 203344540, "length": 504, "sha256": "575efa1568e9762f53d186a101589bb664d502baae1e3108f74d0231e33f7bab", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-2ryskew1.js", "binary_offset": 180304984, "length": 10, "sha256": "a5096692a099456e06a0d96bca0ce48f9c5cd081629afd23d7b8bc73a5f60292", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-zckk5qwj.js", "binary_offset": 203345049, "length": 437, "sha256": "a81f42a598ece14ff965ade8aa8593c9d71656c5aa1cd87e3746e2b27703ada5", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-2ryskew1.js", "binary_offset": 180304984, "length": 10, "sha256": "a5096692a099456e06a0d96bca0ce48f9c5cd081629afd23d7b8bc73a5f60292", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-zckk5qwj.js", "binary_offset": 203345491, "length": 1981, "sha256": "8f7995924631382f49dbc70e3ffa2fc19f6caa5f472cf7e1c64037f3ce89f91d", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-2ryskew1.js", "binary_offset": 180304984, "length": 10, "sha256": "a5096692a099456e06a0d96bca0ce48f9c5cd081629afd23d7b8bc73a5f60292", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-zckk5qwj.js", "binary_offset": 203347477, "length": 392, "sha256": "480237ea4c1aa37225487647225f0fba717c1caef755ee5bb35731c8b3c20ec3", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-zckk5qwj.js", "binary_offset": 203348709, "length": 775, "sha256": "f443ee375ffa7ba50054c6f28e9fed00717099fa303f36c6568c874d118b74be", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-zckk5qwj.js", "binary_offset": 203370706, "length": 40025, "sha256": "a579f5bdabb964e502ed5d19f98d9d51c7fc97544939708e72170854e228fe72", "version": "2.1.282", "platform": "darwin-arm64", "role": "definition" } ] }, { "id": "tool-listagents", "title": "ListAgents", "group": "Agents and tasks", "kind": "tool", "text": "Lists agents you can SendMessage to — in-process subagents you spawned, the teammates on your team, other local Claude sessions on this machine, your Claude sessions running in the cloud (when this session has cloud access; a cloud session receives your message but cannot message any session back yet — do not ask it to reply, read its answer in its own transcript), and (when Remote Control is connected here) your account's other sessions — Remote Control sessions on other machines and cloud sessions, each row labeled by kind. Names are the address: send with `SendMessage({to: \"\", message: \"...\"})`, copying the name exactly as a row prints it. Append a row's ` [ref]` only when the bare name is not enough — two rows share it, or an error asks you to disambiguate.", "when": "isEnabled: CLAUDE_CODE_HARBOR_KITE decides when set; on Windows flag `tengu_harbor_kite_win` (default true) must also be on; then flag `tengu_harbor_kite` (default true).", "documented": "https://code.claude.com/docs/en/tools-reference", "details": { "aliases": [ "ListPeers" ], "deferred": "no", "read_only": true, "concurrency_safe": true, "definition": "chunk-ng1fcwr3.js @ char 5272", "should_defer": false, "is_enabled": "conditional", "search_hint": "list agents you can SendMessage to", "ui_description": "Lists agents you can SendMessage to — in-process subagents you spawned, the teammates on your team, other local Claude sessions on this machine, your Claude sessions running in the cloud (when this session has cloud access; a cloud session receives your message but cannot message any session back yet — do not ask it to reply, read its answer in its own transcript), and (when Remote Control is connected here) your account's other sessions — Remote Control sessions on other machines and cloud sessions, each row labeled by kind. Names are the address: send with `SendMessage({to: \"\", message: \"...\"})`, copying the name exactly as a row prints it. Append a row's ` [ref]` only when the bare name is not enough — two rows share it, or an error asks you to disambiguate.", "template_matches_capture": [ { "capture": "interactive", "matches": true }, { "capture": "print", "matches": true } ], "variants_source": "branches read from prompt() code, matched against the interactive CLI capture", "constants": { "Qr": "SendMessage", "s": "Lists agents you can SendMessage to — in-process subagents you spawned, the teammates on your team, other local Claude sessions on this machine, your Claude sessions running in the cloud (when this session has cloud access; a cloud session receives your message but cannot message any session back yet — do not ask it to reply, read its answer in its own transcript), and (when Remote Control is connected here) your account's other sessions — Remote Control sessions on other machines and cloud sessions, each row labeled by kind. Names are the address: send with `SendMessage({to: \"\", message: \"...\"})`, copying the name exactly as a row prints it. Append a row's ` [ref]` only when the bare name is not enough — two rows share it, or an error asks you to disambiguate." }, "text_source": "captured (interactive, print)", "input_schema_source": "captured", "input_schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "type": "object", "properties": { "channel": { "description": "Not available in this build; leave unset.", "type": "string", "maxLength": 256 }, "q": { "description": "Not available in this build; leave unset.", "type": "string", "maxLength": 256 } }, "additionalProperties": false }, "parameters": [ { "name": "channel", "type": "string", "required": false, "description": "Not available in this build; leave unset." }, { "name": "q", "type": "string", "required": false, "description": "Not available in this build; leave unset." } ], "output": "outputSchema fields (from code): `listing`.", "available_in": "CLI, SDK (flag tengu_harbor_kite, default on)", "seen_in": "interactive CLI capture, -p/SDK capture", "definition_provenance_index": 5 }, "provenance": [ { "file": "chunk-2ryskew1.js", "binary_offset": 180305041, "length": 21, "sha256": "88878be8c27306da02ae86206dedccc5ebd37c0515a33ea7a05093b8263fbb14", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-4k1mgdee.js", "binary_offset": 180304213, "length": 11, "sha256": "48e8ec8b725027b4c4da91e93e54944338e4504e6c13ab68166437ab2b6fc079", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-2ryskew1.js", "binary_offset": 180305067, "length": 550, "sha256": "ed347dde676b63482b2d10351d26d13c88afd405039e8ed940f40e914f2bd89e", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-4k1mgdee.js", "binary_offset": 180304213, "length": 11, "sha256": "48e8ec8b725027b4c4da91e93e54944338e4504e6c13ab68166437ab2b6fc079", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-2ryskew1.js", "binary_offset": 180305622, "length": 208, "sha256": "100c81eca4154e57c21c929ee7d61231b25d1a2a113c965ee8a88f5c22a3fdf9", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-ng1fcwr3.js", "binary_offset": 203263914, "length": 906, "sha256": "9ba864d29149c724ea6914be3dee9b4e703825a4f045df545b53d56197c7c188", "version": "2.1.282", "platform": "darwin-arm64", "role": "definition" } ] }, { "id": "tool-taskstop", "title": "TaskStop", "group": "Agents and tasks", "kind": "tool", "text": "\n- Stops a running background task by its ID\n- Takes a task_id parameter identifying the task to stop\n- To stop an agent-team teammate, pass its agent ID (\"name@team\") or bare teammate name as task_id\n- To stop a background agent spawned with a name, pass that name as task_id\n- Returns a success or failure status\n- Use this tool when you need to terminate a long-running task\n", "when": "Always in the built-in list; no isEnabled gate.", "documented": "https://code.claude.com/docs/en/tools-reference", "details": { "aliases": [ "KillShell", "KillBash" ], "deferred": "yes", "read_only": false, "concurrency_safe": true, "definition": "chunk-v8p447v2.js @ char 29314", "should_defer": true, "is_enabled": "always (builder default)", "search_hint": "kill a running background task", "ui_description": "Stop a running background task by ID", "template_matches_capture": [ { "capture": "interactive", "matches": true }, { "capture": "print", "matches": true } ], "variants_source": "branches read from prompt() code, matched against the interactive CLI capture", "constants": { "kyo": "\n- Stops a running background task by its ID\n- Takes a task_id parameter identifying the task to stop\n- To stop an agent-team teammate, pass its agent ID (\"name@team\") or bare teammate name as task_id\n- To stop a background agent spawned with a name, pass that name as task_id\n- Returns a success or failure status\n- Use this tool when you need to terminate a long-running task\n" }, "text_source": "captured (interactive, print)", "input_schema_source": "captured", "input_schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "type": "object", "properties": { "task_id": { "description": "The ID of the background task to stop. Agent-team teammates and named background agents are also accepted by agent ID or name.", "type": "string" }, "shell_id": { "description": "Deprecated: use task_id instead", "type": "string" } }, "additionalProperties": false }, "parameters": [ { "name": "task_id", "type": "string", "required": false, "description": "The ID of the background task to stop. Agent-team teammates and named background agents are also accepted by agent ID or name." }, { "name": "shell_id", "type": "string", "required": false, "description": "Deprecated: use task_id instead" } ], "sdk_types": { "interface": "TaskStopInput", "agrees": true }, "output": "outputSchema fields (from code): `message`, `task_id`, `task_type`, `command`.", "available_in": "CLI, SDK", "seen_in": "interactive CLI capture, -p/SDK capture", "definition_provenance_index": 1 }, "provenance": [ { "file": "chunk-hxsh2rj1.js", "binary_offset": 180297167, "length": 378, "sha256": "c712879f99584bff65b940168e5b2c68ca603bc6400f99c21cb162898c6b987b", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-v8p447v2.js", "binary_offset": 188082084, "length": 1595, "sha256": "e95423a92b66d3cb1b09a1502ee189dc0ca771dafbc86247c7c4772d59692d65", "version": "2.1.282", "platform": "darwin-arm64", "role": "definition" } ] }, { "id": "tool-taskcreate", "title": "TaskCreate", "group": "Agents and tasks", "kind": "tool", "text": "Use this tool to create a structured task list for your current coding session. This helps you track progress, organize complex tasks, and demonstrate thoroughness to the user.\nIt also helps the user understand the progress of the task and overall progress of their requests.\n\n## When to Use This Tool\n\nUse this tool proactively in these scenarios:\n\n- Complex multi-step tasks - When a task requires 3 or more distinct steps or actions\n- Non-trivial and complex tasks - Tasks that require careful planning or multiple operations{{expr:uo() ? … : …}}\n- Plan mode - When using plan mode, create a task list to track the work\n- User explicitly requests todo list - When the user directly asks you to use the todo list\n- User provides multiple tasks - When users provide a list of things to be done (numbered or comma-separated)\n- After receiving new instructions - Immediately capture user requirements as tasks\n- When you start working on a task - Mark it as in_progress BEFORE beginning work\n- After completing a task - Mark it as completed and add any new follow-up tasks discovered during implementation\n\n## When NOT to Use This Tool\n\nSkip using this tool when:\n- There is only a single, straightforward task\n- The task is trivial and tracking it provides no organizational benefit\n- The task can be completed in less than 3 trivial steps\n- The task is purely conversational or informational\n\nNOTE that you should not use this tool if there is only one trivial task to do. In this case you are better off just doing the task directly.\n\n## Task Fields\n\n- **subject**: A brief, actionable title in imperative form (e.g., \"Fix authentication bug in login flow\")\n- **description**: What needs to be done\n- **activeForm** (optional): Present continuous form shown in the spinner when the task is in_progress (e.g., \"Fixing authentication bug\"). If omitted, the spinner shows the subject instead.\n\nAll tasks are created with status `pending`.\n\n## Tips\n\n- Create tasks with clear, specific subjects that describe the outcome\n- After creating tasks, use TaskUpdate to set up dependencies (blocks/blockedBy) if needed\n{{expr:uo() ? … : …}}- Check TaskList first to avoid creating duplicate tasks\n", "when": "Listed when CLAUDE_CODE_ENABLE_TASKS is not false; isEnabled requires that and a model-or-opt-in check, which is true when a further check (not traced) or the todo-tools opt-in holds (TodoWrite/TaskCreate/TaskGet/TaskUpdate/TaskList named in --tools/--allowedTools), when the main-loop canonical model is unknown, when model checks pass (not traced), or when CLAUDE_CODE_ENABLE_TODO_TOOLS is true. Docs: default only on Claude 3.x, Opus 4-4.7, Sonnet 4-4.6 and Haiku 4.5; also in background and cloud sessions.", "documented": "https://code.claude.com/docs/en/tools-reference#task-tool-availability", "details": { "aliases": [], "deferred": "yes", "read_only": false, "concurrency_safe": false, "definition": "chunk-v8p447v2.js @ char 121957", "should_defer": true, "is_enabled": "conditional", "search_hint": "create a task in the task list", "ui_description": "Create a new task in the task list", "conditional_fragments": [ { "placeholder": "{{expr:uo() ? … : …}}", "condition": "uo()", "when_true": " and potentially assigned to teammates", "when_false": "" }, { "placeholder": "{{expr:uo() ? … : …}}", "condition": "uo()", "when_true": "- Include enough detail in the description for another agent to understand and complete the task\n- New tasks are created with status 'pending' and no owner - use TaskUpdate with the `owner` parameter to assign them\n", "when_false": "" } ], "text_source": "reconstructed from prompt()", "input_schema_source": "zod definition (static read)", "input_schema": { "type": "object", "properties": { "subject": { "description": "A brief title for the task", "type": "string" }, "description": { "description": "What needs to be done", "type": "string" }, "activeForm": { "description": "Present continuous form shown in spinner when in_progress (e.g., \"Running tests\")", "type": "string" }, "metadata": { "description": "Arbitrary metadata to attach to the task", "type": "object", "additionalProperties": {} } }, "required": [ "subject", "description" ] }, "parameters": [ { "name": "subject", "type": "string", "required": true, "description": "A brief title for the task" }, { "name": "description", "type": "string", "required": true, "description": "What needs to be done" }, { "name": "activeForm", "type": "string", "required": false, "description": "Present continuous form shown in spinner when in_progress (e.g., \"Running tests\")" }, { "name": "metadata", "type": "object", "required": false, "description": "Arbitrary metadata to attach to the task" } ], "sdk_types": { "interface": "TaskCreateInput", "agrees": true }, "output": "outputSchema fields (from code): `task`.", "available_in": "conditional (model or opt-in)", "seen_in": "neither capture", "definition_provenance_index": 5 }, "provenance": [ { "file": "chunk-v8p447v2.js", "binary_offset": 188172192, "length": 528, "sha256": "188d41f61d51e0103be04f5a557061344e448134c716aed38faf2674bfbd738f", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-v8p447v2.js", "binary_offset": 188172724, "length": 1563, "sha256": "5b3200208bbb61fcd8bd06435512259dd248f04d0a39d9377a5eb3d0faa1786b", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-v8p447v2.js", "binary_offset": 188174291, "length": 57, "sha256": "33efe9b708e80a049879d962e3be9322dc9d65b53b7243ce1831159f08f857d1", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-v8p447v2.js", "binary_offset": 188171912, "length": 38, "sha256": "0e7ca4250fe6e5c1e308d8fa9fd0c2f7b1e872c16ff255636b21797e49eaf49f", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-v8p447v2.js", "binary_offset": 188171963, "length": 217, "sha256": "574c1854cd1d72665966863ed4feb965eb13d2e670d1356f368a722655ab56a1", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-v8p447v2.js", "binary_offset": 188174727, "length": 1227, "sha256": "a70d6da33e3d5ad507f0b4bf96855c254dd21276b1b412f93e7374f8cff60e5f", "version": "2.1.282", "platform": "darwin-arm64", "role": "definition" } ] }, { "id": "tool-taskget", "title": "TaskGet", "group": "Agents and tasks", "kind": "tool", "text": "Use this tool to retrieve a task by its ID from the task list.\n\n## When to Use This Tool\n\n- When you need the full description and context before starting work on a task\n- To understand task dependencies (what it blocks, what blocks it)\n- After being assigned a task, to get complete requirements\n\n## Output\n\nReturns full task details:\n- **subject**: Task title\n- **description**: Detailed requirements and context\n- **status**: 'pending', 'in_progress', or 'completed'\n- **blocks**: Tasks waiting on this one to complete\n- **blockedBy**: Tasks that must complete before this one can start\n\n## Tips\n\n- After fetching a task, verify its blockedBy list is empty before beginning work.\n- Use TaskList to see all tasks in summary form.\n", "when": "Same gate as TaskCreate.", "documented": "https://code.claude.com/docs/en/tools-reference#task-tool-availability", "details": { "aliases": [], "deferred": "yes", "read_only": true, "concurrency_safe": true, "definition": "chunk-v8p447v2.js @ char 124164", "should_defer": true, "is_enabled": "conditional", "search_hint": "retrieve a task by ID", "ui_description": "Get a task by ID from the task list", "constants": { "Uo": "Use this tool to retrieve a task by its ID from the task list.\n\n## When to Use This Tool\n\n- When you need the full description and context before starting work on a task\n- To understand task dependencies (what it blocks, what blocks it)\n- After being assigned a task, to get complete requirements\n\n## Output\n\nReturns full task details:\n- **subject**: Task title\n- **description**: Detailed requirements and context\n- **status**: 'pending', 'in_progress', or 'completed'\n- **blocks**: Tasks waiting on this one to complete\n- **blockedBy**: Tasks that must complete before this one can start\n\n## Tips\n\n- After fetching a task, verify its blockedBy list is empty before beginning work.\n- Use TaskList to see all tasks in summary form.\n" }, "text_source": "reconstructed from prompt()", "input_schema_source": "zod definition (static read)", "input_schema": { "type": "object", "properties": { "taskId": { "description": "The ID of the task to retrieve", "type": "string" } }, "required": [ "taskId" ] }, "parameters": [ { "name": "taskId", "type": "string", "required": true, "description": "The ID of the task to retrieve" } ], "sdk_types": { "interface": "TaskGetInput", "agrees": true }, "output": "outputSchema fields (from code): `task`.", "available_in": "conditional (model or opt-in)", "seen_in": "neither capture", "definition_provenance_index": 1 }, "provenance": [ { "file": "chunk-v8p447v2.js", "binary_offset": 188176005, "length": 732, "sha256": "55bdb174a3bcc65305f3a4ab6dcd525eec51257930cc1bf1cf60061808a88d3a", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-v8p447v2.js", "binary_offset": 188176934, "length": 1109, "sha256": "0d2e3a425218aa4d0f8b3f9cc32fde15189e98606796dccc8fd6dbbb4af50587", "version": "2.1.282", "platform": "darwin-arm64", "role": "definition" } ] }, { "id": "tool-taskupdate", "title": "TaskUpdate", "group": "Agents and tasks", "kind": "tool", "text": "Use this tool to update a task in the task list.\n\n## When to Use This Tool\n\n**Mark tasks as resolved:**\n- When you have completed the work described in a task\n- When a task is no longer needed or has been superseded\n- IMPORTANT: Always mark your assigned tasks as resolved when you finish them\n- After resolving, call TaskList to find your next task\n\n- ONLY mark a task as completed when you have FULLY accomplished it\n- If you encounter errors, blockers, or cannot finish, keep the task as in_progress\n- When blocked, create a new task describing what needs to be resolved\n- Never mark a task as completed if:\n - Tests are failing\n - Implementation is partial\n - You encountered unresolved errors\n - You couldn't find necessary files or dependencies\n\n**Delete tasks:**\n- When a task is no longer relevant or was created in error\n- Setting status to `deleted` permanently removes the task\n\n**Update task details:**\n- When requirements change or become clearer\n- When establishing dependencies between tasks\n\n## Fields You Can Update\n\n- **status**: The task status (see Status Workflow below)\n- **subject**: Change the task title (imperative form, e.g., \"Run tests\")\n- **description**: Change the task description\n- **activeForm**: Present continuous form shown in spinner when in_progress (e.g., \"Running tests\")\n- **owner**: Change the task owner (agent name)\n- **metadata**: Merge metadata keys into the task (set a key to null to delete it)\n- **addBlocks**: Mark tasks that cannot start until this one completes\n- **addBlockedBy**: Mark tasks that must complete before this one can start\n\n## Status Workflow\n\nStatus progresses: `pending` → `in_progress` → `completed`\n\nUse `deleted` to permanently remove a task.\n\n## Staleness\n\nMake sure to read a task's latest state using `TaskGet` before updating it.\n\n## Examples\n\nMark task as in progress when starting work:\n```json\n{\"taskId\": \"1\", \"status\": \"in_progress\"}\n```\n\nMark task as completed after finishing work:\n```json\n{\"taskId\": \"1\", \"status\": \"completed\"}\n```\n\nDelete a task:\n```json\n{\"taskId\": \"1\", \"status\": \"deleted\"}\n```\n\nClaim a task by setting owner:\n```json\n{\"taskId\": \"1\", \"owner\": \"my-name\"}\n```\n\nSet up task dependencies:\n```json\n{\"taskId\": \"2\", \"addBlockedBy\": [\"1\"]}\n```\n", "when": "Same gate as TaskCreate.", "documented": "https://code.claude.com/docs/en/tools-reference#task-tool-availability", "details": { "aliases": [], "deferred": "yes", "read_only": false, "concurrency_safe": true, "definition": "chunk-v8p447v2.js @ char 128476", "should_defer": true, "is_enabled": "conditional", "search_hint": "update a task", "ui_description": "Update a task in the task list", "constants": { "Ko": "Use this tool to update a task in the task list.\n\n## When to Use This Tool\n\n**Mark tasks as resolved:**\n- When you have completed the work described in a task\n- When a task is no longer needed or has been superseded\n- IMPORTANT: Always mark your assigned tasks as resolved when you finish them\n- After resolving, call TaskList to find your next task\n\n- ONLY mark a task as completed when you have FULLY accomplished it\n- If you encounter errors, blockers, or cannot finish, keep the task as in_progress\n- When blocked, create a new task describing what needs to be resolved\n- Never mark a task as completed if:\n - Tests are failing\n - Implementation is partial\n - You encountered unresolved errors\n - You couldn't find necessary files or dependencies\n\n**Delete tasks:**\n- When a task is no longer relevant or was created in error\n- Setting status to `deleted` permanently removes the task\n\n**Update task details:**\n- When requirements change or become clearer\n- When establishing dependencies between tasks\n\n## Fields You Can Update\n\n- **status**: The task status (see Status Workflow below)\n- **subject**: Change the task title (imperative form, e.g., \"Run tests\")\n- **description**: Change the task description\n- **activeForm**: Present continuous form shown in spinner when in_progress (e.g., \"Running tests\")\n- **owner**: Change the task owner (agent name)\n- **metadata**: Merge metadata keys into the task (set a key to null to delete it)\n- **addBlocks**: Mark tasks that cannot start until this one completes\n- **addBlockedBy**: Mark tasks that must complete before this one can start\n\n## Status Workflow\n\nStatus progresses: `pending` → `in_progress` → `completed`\n\nUse `deleted` to permanently remove a task.\n\n## Staleness\n\nMake sure to read a task's latest state using `TaskGet` before updating it.\n\n## Examples\n\nMark task as in progress when starting work:\n```json\n{\"taskId\": \"1\", \"status\": \"in_progress\"}\n```\n\nMark task as completed after finishing work:\n```json\n{\"taskId\": \"1\", \"status\": \"completed\"}\n```\n\nDelete a task:\n```json\n{\"taskId\": \"1\", \"status\": \"deleted\"}\n```\n\nClaim a task by setting owner:\n```json\n{\"taskId\": \"1\", \"owner\": \"my-name\"}\n```\n\nSet up task dependencies:\n```json\n{\"taskId\": \"2\", \"addBlockedBy\": [\"1\"]}\n```\n" }, "text_source": "reconstructed from prompt()", "input_schema_source": "zod definition (static read)", "input_schema": { "type": "object", "properties": { "taskId": { "description": "The ID of the task to update", "type": "string" }, "subject": { "description": "New subject for the task", "type": "string" }, "description": { "description": "New description for the task", "type": "string" }, "activeForm": { "description": "Present continuous form shown in spinner when in_progress (e.g., \"Running tests\")", "type": "string" }, "status": { "description": "New status for the task", "anyOf": [ { "type": "string", "enum": [ "pending", "in_progress", "completed" ] }, { "const": "deleted" } ] }, "addBlocks": { "description": "Task IDs that this task blocks", "type": "array", "items": { "type": "string" } }, "addBlockedBy": { "description": "Task IDs that block this task", "type": "array", "items": { "type": "string" } }, "owner": { "description": "New owner for the task", "type": "string" }, "metadata": { "description": "Metadata keys to merge into the task. Set a key to null to delete it.", "type": "object", "additionalProperties": {} } }, "required": [ "taskId" ] }, "parameters": [ { "name": "taskId", "type": "string", "required": true, "description": "The ID of the task to update" }, { "name": "subject", "type": "string", "required": false, "description": "New subject for the task" }, { "name": "description", "type": "string", "required": false, "description": "New description for the task" }, { "name": "activeForm", "type": "string", "required": false, "description": "Present continuous form shown in spinner when in_progress (e.g., \"Running tests\")" }, { "name": "status", "type": "string | \"deleted\"", "required": false, "description": "New status for the task" }, { "name": "addBlocks", "type": "array", "required": false, "description": "Task IDs that this task blocks" }, { "name": "addBlockedBy", "type": "array", "required": false, "description": "Task IDs that block this task" }, { "name": "owner", "type": "string", "required": false, "description": "New owner for the task" }, { "name": "metadata", "type": "object", "required": false, "description": "Metadata keys to merge into the task. Set a key to null to delete it." } ], "sdk_types": { "interface": "TaskUpdateInput", "agrees": true }, "output": "outputSchema fields (from code): `success`, `taskId`, `updatedFields`, `error`, `statusChange`.", "available_in": "conditional (model or opt-in)", "seen_in": "neither capture", "definition_provenance_index": 1 }, "provenance": [ { "file": "chunk-v8p447v2.js", "binary_offset": 188178089, "length": 2295, "sha256": "50ad820b8e61f704167bf1a1fe16e41deaf76d773ca8864eeaf2bf320effbfce", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-v8p447v2.js", "binary_offset": 188181246, "length": 3060, "sha256": "c9dd231f8dbd9c408a3800e1441f396f204cd86d4d9210aef65065393fcfcbd5", "version": "2.1.282", "platform": "darwin-arm64", "role": "definition" } ] }, { "id": "tool-tasklist", "title": "TaskList", "group": "Agents and tasks", "kind": "tool", "text": "Use this tool to list all tasks in the task list.\n\n## When to Use This Tool\n\n- To see what tasks are available to work on (status: 'pending', no owner, not blocked)\n- To check overall progress on the project\n- To find tasks that are blocked and need dependencies resolved\n{{expr:uo() ? … : …}}- After completing a task, to check for newly unblocked work or claim the next available task\n- **Prefer working on tasks in ID order** (lowest ID first) when multiple tasks are available, as earlier tasks often set up context for later ones\n\n## Output\n\nReturns a summary of each task:\n{{expr:uo() ? … : …}}\n- **subject**: Brief description of the task\n- **status**: 'pending', 'in_progress', or 'completed'\n- **owner**: Agent ID if assigned, empty if available\n- **blockedBy**: List of open task IDs that must be resolved first (tasks with blockedBy cannot be claimed until dependencies resolve)\n\nUse TaskGet with a specific task ID to view full details including description and comments.\n{{expr:uo() ? … : …}}", "when": "Same gate as TaskCreate.", "documented": "https://code.claude.com/docs/en/tools-reference#task-tool-availability", "details": { "aliases": [], "deferred": "yes", "read_only": true, "concurrency_safe": true, "definition": "chunk-v8p447v2.js @ char 133405", "should_defer": true, "is_enabled": "conditional", "search_hint": "list all tasks", "ui_description": "List all tasks in the task list", "conditional_fragments": [ { "placeholder": "{{expr:uo() ? … : …}}", "condition": "uo()", "when_true": "- Before assigning tasks to teammates, to see what's available\n", "when_false": "" }, { "placeholder": "{{expr:uo() ? … : …}}", "condition": "uo()", "when_true": "- **id**: Task identifier (use with TaskGet, TaskUpdate)", "when_false": "- **id**: Task identifier (use with TaskGet, TaskUpdate)" }, { "placeholder": "{{expr:uo() ? … : …}}", "condition": "uo()", "when_true": "\n## Teammate Workflow\n\nWhen working as a teammate:\n1. After completing your current task, call TaskList to find available work\n2. Look for tasks with status 'pending', no owner, and empty blockedBy\n3. **Prefer tasks in ID order** (lowest ID first) when multiple tasks are available, as earlier tasks often set up context for later ones\n4. Claim an available task using TaskUpdate (set `owner` to your name), or wait for leader assignment\n5. If blocked, focus on unblocking tasks or notify the team lead\n", "when_false": "" } ], "text_source": "reconstructed from prompt()", "input_schema_source": "zod definition (static read)", "input_schema": { "type": "object", "properties": {} }, "parameters": [], "sdk_types": { "interface": "TaskListInput", "agrees": true }, "output": "outputSchema fields (from code): `tasks`.", "available_in": "conditional (model or opt-in)", "seen_in": "neither capture", "definition_provenance_index": 7 }, "provenance": [ { "file": "chunk-v8p447v2.js", "binary_offset": 188185093, "length": 272, "sha256": "217759e5bcc57002fc0f8f3a4557e7c61b0e0e455dd2405794a2d04234437239", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-v8p447v2.js", "binary_offset": 188185369, "length": 286, "sha256": "1a3a574fb2da039ab43101a70ee62893dada89af05f2e43b7a612273641a5450", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-v8p447v2.js", "binary_offset": 188185659, "length": 384, "sha256": "eb9ebaab4f265fcd4f5d2400a932885f2bb8d7c7adc73b9a5712ff8318599dc4", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-v8p447v2.js", "binary_offset": 188184375, "length": 63, "sha256": "25cb5e79da61d14bc0dcfe4793af50c3000c1f92cedfe2bfad24387d3fbbbbc2", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-v8p447v2.js", "binary_offset": 188184451, "length": 56, "sha256": "03df275183cc74d74fca110c23a18c7e359e6f40c41bdcb5ae81dd9a274299c1", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-v8p447v2.js", "binary_offset": 188184510, "length": 56, "sha256": "03df275183cc74d74fca110c23a18c7e359e6f40c41bdcb5ae81dd9a274299c1", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-v8p447v2.js", "binary_offset": 188184576, "length": 505, "sha256": "51d3bf21de8172e6710d751345df8d98e5e5b7738613e56c18dfc1e69f168387", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-v8p447v2.js", "binary_offset": 188186175, "length": 1072, "sha256": "c396a1402237bd9615fa0bbf7635641a39f40690a0a9fd85f73c22552704f5aa", "version": "2.1.282", "platform": "darwin-arm64", "role": "definition" } ] }, { "id": "tool-todowrite", "title": "TodoWrite", "group": "Agents and tasks", "kind": "tool", "text": "Create and update a task list for the current session. The list is rendered to the user as your working plan.\n\n- Each todo has `content`, `status` (\"pending\" | \"in_progress\" | \"completed\"), and `activeForm` (present-tense label shown while in progress).\n- Send the full list each call; it replaces the previous one.\n- Keep one item `in_progress` at a time and mark it `completed` when done.", "when": "isEnabled: only when CLAUDE_CODE_ENABLE_TASKS is false and the model-or-opt-in check described under TaskCreate passes. Docs: replaces the four Task tools when CLAUDE_CODE_ENABLE_TASKS=0.", "documented": "https://code.claude.com/docs/en/tools-reference#task-tool-availability", "details": { "aliases": [], "deferred": "yes", "read_only": false, "concurrency_safe": false, "definition": "chunk-v8p447v2.js @ char 59653", "should_defer": true, "is_enabled": "conditional", "search_hint": "manage the session task checklist", "ui_description": "Update the todo list for the current session. To be used proactively and often to track progress and pending tasks. Make sure that at least one task is in_progress at all times. Always provide both content (imperative) and activeForm (present continuous) for each task.", "variants": [ { "when": "not lean prompt (options.leanPrompt, else the model's setting)", "default_text": "Create and update a task list for the current session. The list is rendered to the user as your working plan.\n\n- Each todo has `content`, `status` (\"pending\" | \"in_progress\" | \"completed\"), and `activeForm` (present-tense label shown while in progress).\n- Send the full list each call; it replaces the previous one.\n- Keep one item `in_progress` at a time and mark it `completed` when done.", "variant_text": "Use this tool to create and manage a structured task list for your current coding session. This helps you track progress, organize complex tasks, and demonstrate thoroughness to the user.\nIt also helps the user understand the progress of the task and overall progress of their requests.\n\n## When to Use This Tool\nUse this tool proactively in these scenarios:\n\n1. Complex multi-step tasks - When a task requires 3 or more distinct steps or actions\n2. Non-trivial and complex tasks - Tasks that require careful planning or multiple operations\n3. User explicitly requests todo list - When the user directly asks you to use the todo list\n4. User provides multiple tasks - When users provide a list of things to be done (numbered or comma-separated)\n5. After receiving new instructions - Immediately capture user requirements as todos\n6. When you start working on a task - Mark it as in_progress BEFORE beginning work. Ideally you should only have one todo as in_progress at a time\n7. After completing a task - Mark it as completed and add any new follow-up tasks discovered during implementation\n\n## When NOT to Use This Tool\n\nSkip using this tool when:\n1. There is only a single, straightforward task\n2. The task is trivial and tracking it provides no organizational benefit\n3. The task can be completed in less than 3 trivial steps\n4. The task is purely conversational or informational\n\nNOTE that you should not use this tool if there is only one trivial task to do. In this case you are better off just doing the task directly.\n\n## Examples of When to Use the Todo List\n\n\nUser: I want to add a dark mode toggle to the application settings. Make sure you run the tests and build when you're done!\nAssistant: *Creates todo list with the following items:*\n1. Creating dark mode toggle component in Settings page\n2. Adding dark mode state management (context/store)\n3. Implementing CSS-in-JS styles for dark theme\n4. Updating existing components to support theme switching\n5. Running tests and build process, addressing any failures or errors that occur\n*Begins working on the first task*\n\n\nThe assistant used the todo list because:\n1. Adding dark mode is a multi-step feature requiring UI, state management, and styling changes\n2. The user explicitly requested tests and build be run afterward\n3. The assistant inferred that tests and build need to pass by adding \"Ensure tests and build succeed\" as the final task\n\n\n\n\nUser: Help me rename the function getCwd to getCurrentWorkingDirectory across my project\nAssistant: *Uses grep or search tools to locate all instances of getCwd in the codebase*\nI've found 15 instances of 'getCwd' across 8 different files.\n*Creates todo list with specific items for each file that needs updating*\n\n\nThe assistant used the todo list because:\n1. First, the assistant searched to understand the scope of the task\n2. Upon finding multiple occurrences across different files, it determined this was a complex task with multiple steps\n3. The todo list helps ensure every instance is tracked and updated systematically\n4. This approach prevents missing any occurrences and maintains code consistency\n\n\n\n\n\nUser: I need to implement these features for my e-commerce site: user registration, product catalog, shopping cart, and checkout flow.\nAssistant: *Creates a todo list breaking down each feature into specific tasks based on the project architecture*\nLet's start with user registration. This will involve creating database models, API endpoints, and frontend forms that integrate with your existing authentication system.\n\n\nThe assistant used the todo list because:\n1. The user provided multiple complex features to implement in a comma separated list\n2. The todo list helps organize these large features into manageable tasks\n3. This approach allows for tracking progress across the entire implementation\n\n\n\n\nUser: Can you help optimize my React application? It's rendering slowly and has performance issues.\nAssistant: *Reviews component structure, render patterns, state management, and data fetching*\nAfter analyzing your codebase, I've identified several performance issues.\n*Creates todo list with items like: 1) Implementing memoization for expensive calculations in ProductList, 2) Adding virtualization for long lists in Dashboard, 3) Optimizing image loading in Gallery component, 4) Fixing state update loops in ShoppingCart, 5) Reviewing bundle size and implementing code splitting*\nLet's start by implementing memoization for the expensive calculations in your ProductList component.\n\n\nThe assistant used the todo list because:\n1. First, the assistant examined the codebase to identify specific performance issues\n2. Based on this analysis, it identified multiple optimization opportunities\n3. Performance optimization is a non-trivial task requiring multiple steps\n4. The todo list helps methodically track improvements across different components\n5. This systematic approach ensures all performance bottlenecks are addressed\n\n\n\n## Examples of When NOT to Use the Todo List\n\n\nUser: How do I print 'Hello World' in Python?\nAssistant: In Python, you can print \"Hello World\" with this simple code:\n\npython\nprint(\"Hello World\")\n\nThis will output the text \"Hello World\" to the console when executed.\n\n\nThe assistant did not use the todo list because this is a single, trivial task that can be completed in one step. There's no need to track multiple tasks or steps for such a straightforward request.\n\n\n\n\nUser: What does the git status command do?\nAssistant: The git status command shows the current state of your working directory and staging area. It displays which changes have been staged, which haven't, and which files aren't being tracked by Git. This is a fundamental command for understanding the current state of your repository before making commits.\n\n\nThe assistant did not use the todo list because this is an informational request with no actual coding task to complete. The user is simply asking for an explanation, not for the assistant to perform multiple steps or tasks.\n\n\n\n\nUser: Can you add a comment to the calculateTotal function to explain what it does?\nAssistant: Sure, let me add a comment to the calculateTotal function to explain what it does.\n* Uses the Edit tool to add a comment to the calculateTotal function *\n\n\nThe assistant did not use the todo list because this is a single, straightforward task confined to one location in the code. Adding a comment doesn't require tracking multiple steps or systematic organization.\n\n\n\n\nUser: Run npm install for me and tell me what happens.\nAssistant: I'll run the npm install command for you.\n\n*Executes: npm install*\n\nThe command completed successfully. Here's the output:\n[Output of npm install command]\n\nAll dependencies have been installed according to your package.json file.\n\n\nThe assistant did not use the todo list because this is a single command execution with immediate results. There are no multiple steps to track or organize, making the todo list unnecessary for this straightforward task.\n\n\n\n## Task States and Management\n\n1. **Task States**: Use these states to track progress:\n - pending: Task not yet started\n - in_progress: Currently working on (limit to ONE task at a time)\n - completed: Task finished successfully\n\n **IMPORTANT**: Task descriptions must have two forms:\n - content: The imperative form describing what needs to be done (e.g., \"Run tests\", \"Build the project\")\n - activeForm: The present continuous form shown during execution (e.g., \"Running tests\", \"Building the project\")\n\n2. **Task Management**:\n - Update task status in real-time as you work\n - Mark tasks complete IMMEDIATELY after finishing (don't batch completions)\n - Exactly ONE task must be in_progress at any time (not less, not more)\n - Complete current tasks before starting new ones\n - Remove tasks that are no longer relevant from the list entirely\n\n3. **Task Completion Requirements**:\n - ONLY mark a task as completed when you have FULLY accomplished it\n - If you encounter errors, blockers, or cannot finish, keep the task as in_progress\n - When blocked, create a new task describing what needs to be resolved\n - Never mark a task as completed if:\n - Tests are failing\n - Implementation is partial\n - You encountered unresolved errors\n - You couldn't find necessary files or dependencies\n\n4. **Task Breakdown**:\n - Create specific, actionable items\n - Break complex tasks into smaller, manageable steps\n - Use clear, descriptive task names\n - Always provide both forms:\n - content: \"Fix authentication bug\"\n - activeForm: \"Fixing authentication bug\"\n\nWhen in doubt, use this tool. Being proactive with task management demonstrates attentiveness and ensures you complete all requirements successfully.\n" } ], "constants": { "Sn": "Create and update a task list for the current session. The list is rendered to the user as your working plan.\n\n- Each todo has `content`, `status` (\"pending\" | \"in_progress\" | \"completed\"), and `activeForm` (present-tense label shown while in progress).\n- Send the full list each call; it replaces the previous one.\n- Keep one item `in_progress` at a time and mark it `completed` when done.", "Tt": "Edit", "wn": "Use this tool to create and manage a structured task list for your current coding session. This helps you track progress, organize complex tasks, and demonstrate thoroughness to the user.\nIt also helps the user understand the progress of the task and overall progress of their requests.\n\n## When to Use This Tool\nUse this tool proactively in these scenarios:\n\n1. Complex multi-step tasks - When a task requires 3 or more distinct steps or actions\n2. Non-trivial and complex tasks - Tasks that require careful planning or multiple operations\n3. User explicitly requests todo list - When the user directly asks you to use the todo list\n4. User provides multiple tasks - When users provide a list of things to be done (numbered or comma-separated)\n5. After receiving new instructions - Immediately capture user requirements as todos\n6. When you start working on a task - Mark it as in_progress BEFORE beginning work. Ideally you should only have one todo as in_progress at a time\n7. After completing a task - Mark it as completed and add any new follow-up tasks discovered during implementation\n\n## When NOT to Use This Tool\n\nSkip using this tool when:\n1. There is only a single, straightforward task\n2. The task is trivial and tracking it provides no organizational benefit\n3. The task can be completed in less than 3 trivial steps\n4. The task is purely conversational or informational\n\nNOTE that you should not use this tool if there is only one trivial task to do. In this case you are better off just doing the task directly.\n\n## Examples of When to Use the Todo List\n\n\nUser: I want to add a dark mode toggle to the application settings. Make sure you run the tests and build when you're done!\nAssistant: *Creates todo list with the following items:*\n1. Creating dark mode toggle component in Settings page\n2. Adding dark mode state management (context/store)\n3. Implementing CSS-in-JS styles for dark theme\n4. Updating existing components to support theme switching\n5. Running tests and build process, addressing any failures or errors that occur\n*Begins working on the first task*\n\n\nThe assistant used the todo list because:\n1. Adding dark mode is a multi-step feature requiring UI, state management, and styling changes\n2. The user explicitly requested tests and build be run afterward\n3. The assistant inferred that tests and build need to pass by adding \"Ensure tests and build succeed\" as the final task\n\n\n\n\nUser: Help me rename the function getCwd to getCurrentWorkingDirectory across my project\nAssistant: *Uses grep or search tools to locate all instances of getCwd in the codebase*\nI've found 15 instances of 'getCwd' across 8 different files.\n*Creates todo list with specific items for each file that needs updating*\n\n\nThe assistant used the todo list because:\n1. First, the assistant searched to understand the scope of the task\n2. Upon finding multiple occurrences across different files, it determined this was a complex task with multiple steps\n3. The todo list helps ensure every instance is tracked and updated systematically\n4. This approach prevents missing any occurrences and maintains code consistency\n\n\n\n\n\nUser: I need to implement these features for my e-commerce site: user registration, product catalog, shopping cart, and checkout flow.\nAssistant: *Creates a todo list breaking down each feature into specific tasks based on the project architecture*\nLet's start with user registration. This will involve creating database models, API endpoints, and frontend forms that integrate with your existing authentication system.\n\n\nThe assistant used the todo list because:\n1. The user provided multiple complex features to implement in a comma separated list\n2. The todo list helps organize these large features into manageable tasks\n3. This approach allows for tracking progress across the entire implementation\n\n\n\n\nUser: Can you help optimize my React application? It's rendering slowly and has performance issues.\nAssistant: *Reviews component structure, render patterns, state management, and data fetching*\nAfter analyzing your codebase, I've identified several performance issues.\n*Creates todo list with items like: 1) Implementing memoization for expensive calculations in ProductList, 2) Adding virtualization for long lists in Dashboard, 3) Optimizing image loading in Gallery component, 4) Fixing state update loops in ShoppingCart, 5) Reviewing bundle size and implementing code splitting*\nLet's start by implementing memoization for the expensive calculations in your ProductList component.\n\n\nThe assistant used the todo list because:\n1. First, the assistant examined the codebase to identify specific performance issues\n2. Based on this analysis, it identified multiple optimization opportunities\n3. Performance optimization is a non-trivial task requiring multiple steps\n4. The todo list helps methodically track improvements across different components\n5. This systematic approach ensures all performance bottlenecks are addressed\n\n\n\n## Examples of When NOT to Use the Todo List\n\n\nUser: How do I print 'Hello World' in Python?\nAssistant: In Python, you can print \"Hello World\" with this simple code:\n\npython\nprint(\"Hello World\")\n\nThis will output the text \"Hello World\" to the console when executed.\n\n\nThe assistant did not use the todo list because this is a single, trivial task that can be completed in one step. There's no need to track multiple tasks or steps for such a straightforward request.\n\n\n\n\nUser: What does the git status command do?\nAssistant: The git status command shows the current state of your working directory and staging area. It displays which changes have been staged, which haven't, and which files aren't being tracked by Git. This is a fundamental command for understanding the current state of your repository before making commits.\n\n\nThe assistant did not use the todo list because this is an informational request with no actual coding task to complete. The user is simply asking for an explanation, not for the assistant to perform multiple steps or tasks.\n\n\n\n\nUser: Can you add a comment to the calculateTotal function to explain what it does?\nAssistant: Sure, let me add a comment to the calculateTotal function to explain what it does.\n* Uses the Edit tool to add a comment to the calculateTotal function *\n\n\nThe assistant did not use the todo list because this is a single, straightforward task confined to one location in the code. Adding a comment doesn't require tracking multiple steps or systematic organization.\n\n\n\n\nUser: Run npm install for me and tell me what happens.\nAssistant: I'll run the npm install command for you.\n\n*Executes: npm install*\n\nThe command completed successfully. Here's the output:\n[Output of npm install command]\n\nAll dependencies have been installed according to your package.json file.\n\n\nThe assistant did not use the todo list because this is a single command execution with immediate results. There are no multiple steps to track or organize, making the todo list unnecessary for this straightforward task.\n\n\n\n## Task States and Management\n\n1. **Task States**: Use these states to track progress:\n - pending: Task not yet started\n - in_progress: Currently working on (limit to ONE task at a time)\n - completed: Task finished successfully\n\n **IMPORTANT**: Task descriptions must have two forms:\n - content: The imperative form describing what needs to be done (e.g., \"Run tests\", \"Build the project\")\n - activeForm: The present continuous form shown during execution (e.g., \"Running tests\", \"Building the project\")\n\n2. **Task Management**:\n - Update task status in real-time as you work\n - Mark tasks complete IMMEDIATELY after finishing (don't batch completions)\n - Exactly ONE task must be in_progress at any time (not less, not more)\n - Complete current tasks before starting new ones\n - Remove tasks that are no longer relevant from the list entirely\n\n3. **Task Completion Requirements**:\n - ONLY mark a task as completed when you have FULLY accomplished it\n - If you encounter errors, blockers, or cannot finish, keep the task as in_progress\n - When blocked, create a new task describing what needs to be resolved\n - Never mark a task as completed if:\n - Tests are failing\n - Implementation is partial\n - You encountered unresolved errors\n - You couldn't find necessary files or dependencies\n\n4. **Task Breakdown**:\n - Create specific, actionable items\n - Break complex tasks into smaller, manageable steps\n - Use clear, descriptive task names\n - Always provide both forms:\n - content: \"Fix authentication bug\"\n - activeForm: \"Fixing authentication bug\"\n\nWhen in doubt, use this tool. Being proactive with task management demonstrates attentiveness and ensures you complete all requirements successfully.\n" }, "text_source": "reconstructed from prompt()", "input_schema_source": "zod definition (static read)", "input_schema": { "type": "object", "properties": { "todos": { "description": "The updated todo list", "type": "array", "items": { "type": "object", "properties": { "content": { "type": "string", "minLength": 1 }, "status": { "type": "string", "enum": [ "pending", "in_progress", "completed" ] }, "activeForm": { "type": "string", "minLength": 1 } }, "required": [ "content", "status", "activeForm" ] } } }, "required": [ "todos" ] }, "parameters": [ { "name": "todos", "type": "array", "required": true, "description": "The updated todo list" } ], "sdk_types": { "interface": "TodoWriteInput", "agrees": true }, "output": "outputSchema fields (from code): `oldTodos`, `newTodos`.", "available_in": "conditional (CLAUDE_CODE_ENABLE_TASKS=false)", "seen_in": "neither capture", "definition_provenance_index": 4 }, "provenance": [ { "file": "chunk-v8p447v2.js", "binary_offset": 188102366, "length": 394, "sha256": "6640260f473ed32b9b62eae7575a7c2b8561514ac33bbd4aa4eb895c1bf68857", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-v8p447v2.js", "binary_offset": 188102827, "length": 6480, "sha256": "4c73e7d98445d3d84cc34244f0b9c35cdddba969bfd1929b72cfd77066c693d9", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-2393h2ax.js", "binary_offset": 175854187, "length": 4, "sha256": "464c4ffd019e1e9691dcf0537c797353ef2b1c1d4833d3d463e5b74ae4547344", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-v8p447v2.js", "binary_offset": 188109312, "length": 2630, "sha256": "d11e39475f3a97dee50a2e6b2df4a810ecbd336113c05c299446d5fbf91e2533", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-v8p447v2.js", "binary_offset": 188112423, "length": 862, "sha256": "89aa7bae802ce58916e77635db0587ec31e809dc7549af07a5842e5c3216dafb", "version": "2.1.282", "platform": "darwin-arm64", "role": "definition" } ] }, { "id": "tool-workflow", "title": "Workflow", "group": "Agents and tasks", "kind": "tool", "text": "Execute a workflow script that orchestrates multiple subagents deterministically. Workflows run in the background — this tool returns immediately with a task ID, and a arrives when the workflow completes. Use /workflows to watch live progress.\n\nONLY call this tool when the user has explicitly opted into multi-agent orchestration. Workflows can spawn dozens of agents and consume a large amount of tokens; the user must request that scale, not have it inferred. Explicit opt-in means one of:\n- The user included the keyword \"ultracode\" in their prompt (you'll see a system-reminder confirming it).\n- Ultracode is on for the session (a system-reminder confirms it) — see **Ultracode** in the workflow authoring reference.\n- The user directly asked you to run a workflow or use multi-agent orchestration in their own words (\"use a workflow\", \"run a workflow\", \"fan out agents\", \"orchestrate this with subagents\"). The ask must be in the user's words — a task that would merely benefit from a workflow does not count.\n- The user invoked a skill or slash command whose instructions tell you to call Workflow.\n- The user asked you to run a specific named or saved workflow.\n\nFor any other task — even one that would clearly benefit from parallelism — do NOT call this tool. Use the Agent tool (if available) for individual subagents, or briefly describe what a multi-agent workflow could do and how much it would roughly cost, and ask the user whether to run it. Mention they can ask for one with \"use a workflow\" in a future message to skip the ask.\n\nEvery script must begin with `export const meta = {...}`: a PURE LITERAL (no variables, calls or interpolation) giving the workflow's `name`, a one-line `description` (shown in the permission dialog) and optionally `phases` — one `{ title, detail? }` per phase() call, titles matched exactly. Pass the script inline via `script` — do not Write it to a file first, and do not also set the tool's `name` input (that selects a saved workflow); it is plain JavaScript, not TypeScript.\n\nThe canonical multi-stage pattern — pipeline by default, each dimension verifies as soon as its review completes:\n export const meta = {\n name: 'review-changes',\n description: 'Review changed files across dimensions, verify each finding',\n phases: [{ title: 'Review' }, { title: 'Verify' }],\n }\n const DIMENSIONS = [{key: 'bugs', prompt: '...'}, {key: 'perf', prompt: '...'}]\n const results = await pipeline(\n DIMENSIONS,\n d => agent(d.prompt, {label: `review:${d.key}`, phase: 'Review', schema: FINDINGS_SCHEMA}),\n review => parallel(review.findings.map(f => () =>\n agent(`Adversarially verify: ${f.title}`, {label: `verify:${f.file}`, phase: 'Verify', schema: VERDICT_SCHEMA})\n .then(v => ({...f, verdict: v}))\n ))\n )\n const confirmed = results.flat().filter(Boolean).filter(f => f.verdict?.isReal)\n return { confirmed }\n // Dimension 'bugs' findings verify while dimension 'perf' is still reviewing. No wasted wall-clock.\n\nBefore writing a script, load the `workflow-authoring` skill — the workflow authoring reference: script API and gotchas, resume, the **Ultracode** section, quality patterns, worked examples.\n\nThis session has the default workflow size guideline: medium — keep workflows under 10 agents. This is a guideline, not a hard limit — follow it unless the user's prompt calls for a different scale. The user can raise or remove it with \"Dynamic workflow size\" in /config.", "when": "isEnabled: no blocking reason applies; reasons include `managed_settings` (disableWorkflows in managed settings), `org_policy`, `unavailable` and further settings checks. Also added in coordinator mode when it is enabled.", "documented": "https://code.claude.com/docs/en/tools-reference", "details": { "aliases": [ "RunWorkflow" ], "deferred": "no; yes when flag tengu_shiny_stardust (default false) is on", "read_only": false, "concurrency_safe": false, "definition": "chunk-cqxmm4rt.js @ char 61109", "should_defer": false, "is_enabled": "conditional", "search_hint": "orchestrate subagents with deterministic JavaScript workflow", "ui_description": "{{expr:e ? … : …}}{{expr:l===\"unrestricted\" ? … : …}}", "template_matches_capture": [ { "capture": "interactive", "matches": true }, { "capture": "print", "matches": true } ], "captured_values": [ { "placeholder": "{{size}}", "value": "medium — keep workflows under 10 agents" } ], "conditional_fragments": [ { "condition": "v_e(e?.tools)", "raw": "e", "captured_branch": "true", "captured_text": "Execute a workflow script that orchestrates multiple subagents deterministically. Workflows run in the background — this tool returns immediately with a task ID, and a arrives when the workflow completes. Use /workflows to watch live progress.\n\nONLY call this tool when the user has explicitly opted into multi-agent orchestration. Workflows can spawn dozens of agents and consume a large amount of tokens; the user must request that scale, not have it inferred. Explicit opt-in means one of:\n- The user included the keyword \"ultracode\" in their prompt (you'll see a system-reminder confirming it).\n- Ultracode is on for the session (a system-reminder confirms it) — see **Ultracode** in the workflow authoring reference.\n- The user directly asked you to run a workflow or use multi-agent orchestration in their own words (\"use a workflow\", \"run a workflow\", \"fan out agents\", \"orchestrate this with subagents\"). The ask must be in the user's words — a task that would merely benefit from a workflow does not count.\n- The user invoked a skill or slash command whose instructions tell you to call Workflow.\n- The user asked you to run a specific named or saved workflow.\n\nFor any other task — even one that would clearly benefit from parallelism — do NOT call this tool. Use the Agent tool (if available) for individual subagents, or briefly describe what a multi-agent workflow could do and how much it would roughly cost, and ask the user whether to run it. Mention they can ask for one with \"use a workflow\" in a future message to skip the ask.\n\nEvery script must begin with `export const meta = {...}`: a PURE LITERAL (no variables, calls or interpolation) giving the workflow's `name`, a one-line `description` (shown in the permission dialog) and optionally `phases` — one `{ title, detail? }` per phase() call, titles matched exactly. Pass the script inline via `script` — do not Write it to a file first, and do not also set the tool's `name` input (that selects a saved workflow); it is plain JavaScript, not TypeScript.\n\nThe canonical multi-stage pattern — pipeline by default, each dimension verifies as soon as its review completes:\n export const meta = {\n name: 'review-changes',\n description: 'Review changed files across dimensions, verify each finding',\n phases: [{ title: 'Review' }, { title: 'Verify' }],\n }\n const DIMENSIONS = [{key: 'bugs', prompt: '...'}, {key: 'perf', prompt: '...'}]\n const results = await pipeline(\n DIMENSIONS,\n d => agent(d.prompt, {label: `review:${d.key}`, phase: 'Review', schema: FINDINGS_SCHEMA}),\n review => parallel(review.findings.map(f => () =>\n agent(`Adversarially verify: ${f.title}`, {label: `verify:${f.file}`, phase: 'Verify', schema: VERDICT_SCHEMA})\n .then(v => ({...f, verdict: v}))\n ))\n )\n const confirmed = results.flat().filter(Boolean).filter(f => f.verdict?.isReal)\n return { confirmed }\n // Dimension 'bugs' findings verify while dimension 'perf' is still reviewing. No wasted wall-clock.\n\nBefore writing a script, load the `workflow-authoring` skill — the workflow authoring reference: script API and gotchas, resume, the **Ultracode** section, quality patterns, worked examples.", "alternative_text": "Execute a workflow script that orchestrates multiple subagents deterministically. Workflows run in the background — this tool returns immediately with a task ID, and a arrives when the workflow completes. Use /workflows to watch live progress.\n\nONLY call this tool when the user has explicitly opted into multi-agent orchestration. Workflows can spawn dozens of agents and consume a large amount of tokens; the user must request that scale, not have it inferred. Explicit opt-in means one of:\n- The user included the keyword \"ultracode\" in their prompt (you'll see a system-reminder confirming it).\n- Ultracode is on for the session (a system-reminder confirms it) — see **Ultracode** in the workflow authoring reference.\n- The user directly asked you to run a workflow or use multi-agent orchestration in their own words (\"use a workflow\", \"run a workflow\", \"fan out agents\", \"orchestrate this with subagents\"). The ask must be in the user's words — a task that would merely benefit from a workflow does not count.\n- The user invoked a skill or slash command whose instructions tell you to call Workflow.\n- The user asked you to run a specific named or saved workflow.\n\nFor any other task — even one that would clearly benefit from parallelism — do NOT call this tool. Use the Agent tool (if available) for individual subagents, or briefly describe what a multi-agent workflow could do and how much it would roughly cost, and ask the user whether to run it. Mention they can ask for one with \"use a workflow\" in a future message to skip the ask.\n\nEvery script must begin with `export const meta = {...}`: a PURE LITERAL (no variables, calls or interpolation) giving the workflow's `name`, a one-line `description` (shown in the permission dialog) and optionally `phases` — one `{ title, detail? }` per phase() call, titles matched exactly. Pass the script inline via `script` — do not Write it to a file first, and do not also set the tool's `name` input (that selects a saved workflow); it is plain JavaScript, not TypeScript.\n\nThe canonical multi-stage pattern — pipeline by default, each dimension verifies as soon as its review completes:\n export const meta = {\n name: 'review-changes',\n description: 'Review changed files across dimensions, verify each finding',\n phases: [{ title: 'Review' }, { title: 'Verify' }],\n }\n const DIMENSIONS = [{key: 'bugs', prompt: '...'}, {key: 'perf', prompt: '...'}]\n const results = await pipeline(\n DIMENSIONS,\n d => agent(d.prompt, {label: `review:${d.key}`, phase: 'Review', schema: FINDINGS_SCHEMA}),\n review => parallel(review.findings.map(f => () =>\n agent(`Adversarially verify: ${f.title}`, {label: `verify:${f.file}`, phase: 'Verify', schema: VERDICT_SCHEMA})\n .then(v => ({...f, verdict: v}))\n ))\n )\n const confirmed = results.flat().filter(Boolean).filter(f => f.verdict?.isReal)\n return { confirmed }\n // Dimension 'bugs' findings verify while dimension 'perf' is still reviewing. No wasted wall-clock.\n\n# Workflow authoring reference\n\nA workflow structures work across many agents — to be comprehensive (decompose and cover in parallel), to be confident (independent perspectives and adversarial checks before committing), or to take on scale one context can't hold (migrations, audits, broad sweeps). The script is where you encode that structure: what fans out, what verifies, what synthesizes.\n\nWhen you do call it, the right move is often **hybrid**: scout inline first (list the files, find the channels, scope the diff) to discover the work-list, then call Workflow to pipeline over it. You don't need to know the shape before the *task* — only before the *orchestration step*.\n\nCommon single-phase workflows you can chain across turns:\n- **Understand** — parallel readers over relevant subsystems → structured map\n- **Design** — judge panel of N independent approaches → scored synthesis\n- **Review** — dimensions → find → adversarially verify (the review-changes example)\n- **Research** — multi-modal sweep → deep-read → synthesize\n- **Migrate** — discover sites → transform each (worktree isolation) → verify\n\nFor larger work, run several in sequence — read each result before deciding the next phase. You stay in the loop; each workflow is one well-scoped fan-out.\n\n**Ultracode.** When a system-reminder confirms ultracode is on, that opt-in is standing: author and run a workflow for every substantive task by default. The goal is the most exhaustive, correct answer you can produce — token cost is not a constraint. For multi-phase work (understand → design → implement → review), that often means several workflows in sequence — one per phase — so you stay in the loop between them. The quality patterns below (adversarial verify, multi-modal sweep, completeness critic, loop-until-dry) are the tools; pick what fits the task. Lean toward orchestrating with workflows and adversarially verifying your findings — unless the work is trivial or already verified. Solo only on conversational turns or trivial mechanical edits. When a reminder says ultracode is off, revert to the opt-in rule in the Workflow tool description.\n\nPass the script inline via `script` — do not Write it to a file first. Every invocation automatically persists its script to a file under the session directory and returns the path in the tool result. To iterate on a workflow, edit that file with Write/Edit and re-invoke Workflow with `{scriptPath: \"\"}` instead of resending the full script.\n\nEvery script must begin with `export const meta = {...}`:\n export const meta = {\n name: 'find-flaky-tests',\n description: 'Find flaky tests and propose fixes', // one-line, shown in permission dialog\n phases: [ // one entry per phase() call\n { title: 'Scan', detail: 'grep test logs for retries' },\n { title: 'Fix', detail: 'one agent per flaky test' },\n ],\n }\n // script body starts here — use agent()/parallel()/pipeline()/phase()/log()\n phase('Scan')\n const flaky = await agent('grep CI logs for retry markers', {schema: FLAKY_SCHEMA})\n ...\n\nThe `meta` object must be a PURE LITERAL — no variables, function calls, spreads, or template interpolation. Required fields: `name`, `description`. Optional: `whenToUse` (shown in the workflow list), `phases`. Use the SAME phase titles in meta.phases as in phase() calls — titles are matched exactly; a phase() call with no matching meta entry just gets its own progress group. Add `model` to a phase entry when that phase uses a specific model override.\n\nScript body hooks:\n- agent(prompt: string, opts?: {label?: string, phase?: string, schema?: object, model?: string, effort?: string, isolation?: 'worktree', agentType?: string}): Promise — spawn a subagent. Without schema, returns its final text as a string. With schema (a JSON Schema), the subagent is forced to call a StructuredOutput tool and agent() returns the validated object — no parsing needed. Returns null if the user skips the agent mid-run or the subagent dies on a terminal API error after retries (filter with .filter(Boolean)). opts.label overrides the display label. opts.phase explicitly assigns this agent to a progress group (use this inside pipeline()/parallel() stages to avoid races on the global phase() state — same phase string → same group box). opts.model overrides the model for this agent call. Default to omitting it — the agent inherits the main-loop model (the resolved session model), which is almost always correct. Only set it when you're highly confident a different tier fits the task; when unsure, omit. opts.effort overrides the reasoning effort for this agent call ('low' | 'medium' | 'high' | 'xhigh' | 'max') — omit to inherit the session effort; use 'low' for cheap mechanical stages and higher tiers only for the hardest verify/judge stages. opts.isolation: 'worktree' runs the agent in a fresh git worktree — EXPENSIVE (~200-500ms setup + disk per agent), use ONLY when agents mutate files in parallel and would otherwise conflict; the worktree is auto-removed if unchanged. opts.agentType uses a custom subagent type (e.g. 'general-purpose', 'code-reviewer') instead of the default workflow subagent — resolved from the same registry as the Agent tool; composes with schema (the custom agent's system prompt gets a StructuredOutput instruction appended).\n- pipeline(items, stage1, stage2, ...): Promise — run each item through all stages independently, NO barrier between stages. Item A can be in stage 3 while item B is still in stage 1. This is the DEFAULT for multi-stage work. Wall-clock = slowest single-item chain, not sum-of-slowest-per-stage. Every stage callback receives (prevResult, originalItem, index) — use originalItem/index in later stages to label work without threading context through stage 1's return value. A stage that throws drops that item to `null` and skips its remaining stages.\n- parallel(thunks: Array<() => Promise>): Promise — run tasks concurrently. This is a BARRIER: awaits all thunks before returning. A thunk that throws (or whose agent errors) resolves to `null` in the result array — the call itself never rejects, so `.filter(Boolean)` before using the results. Use ONLY when you genuinely need all results together.\n- log(message: string): void — emit a progress message to the user (shown as a narrator line above the progress tree)\n- phase(title: string): void — start a new phase; subsequent agent() calls are grouped under this title in the progress display\n- args: any — the value passed as Workflow's `args` input, verbatim (undefined if not provided). Pass arrays/objects as actual JSON values in the tool call, NOT as a JSON-encoded string — `args: [\"a.ts\", \"b.ts\"]`, not `args: \"[\\\"a.ts\\\", ...]\"` (a stringified list reaches the script as one string, so `args.filter`/`args.map` throw). Use this to parameterize named workflows — e.g. pass a research question, target path, or config object directly instead of via a side-channel file.\n- budget: {total: number|null, spent(): number, remaining(): number} — the turn's token target from the user's \"+500k\"-style directive. `budget.total` is null if no target was set. `budget.spent()` returns output tokens spent this turn across the main loop and all workflows — the pool is shared, not per-workflow. `budget.remaining()` returns `max(0, total - spent())`, or `Infinity` if no target. The target is a HARD ceiling, not advisory: once `spent()` reaches `total`, further `agent()` calls throw. Use for dynamic loops: `while (budget.total && budget.remaining() > 50_000) { ... }`, or static scaling: `const FLEET = budget.total ? Math.floor(budget.total / 100_000) : 5`.\n- workflow(nameOrRef: string | {scriptPath: string}, args?: any): Promise — run another workflow inline as a sub-step and return whatever it returns. Pass a name to invoke a saved workflow (same registry as {name: \"...\"}), or {scriptPath} to run a script file you Wrote earlier. The child shares this run's concurrency cap, agent counter, abort signal, and token budget — its agents appear under a \"▸ name\" group in /workflows and its tokens count toward budget.spent(). The args param becomes the child's `args` global. Nesting is one level only: workflow() inside a child throws. Throws on unknown name / unreadable scriptPath / child syntax error; catch to handle gracefully.\n\nSubagents are told their final text IS the return value (not a human-facing message), so they return raw data. For structured output, use the schema option — validation happens at the tool-call layer so the model retries on mismatch.\nSchemas need {type: 'object', properties: {...}} at root and required ⊆ properties; unsatisfiable ones throw at agent().\n\nWorkflow agents can reach all session-connected MCP tools via ToolSearch — schemas load on demand per agent. Caveat: interactively-authenticated MCP servers (e.g. claude.ai) may be absent in headless/cron runs.\n\nSubagents get the same CLAUDE.md files injected at start that you did (except built-in agent types that omit them, such as Explore and Plan) — don't tell them to re-read those or paste their rules into the prompt; name the specific rule a stage needs, if any.\n\nScripts are plain JavaScript, NOT TypeScript — type annotations (`: string[]`), interfaces, and generics fail to parse. The script body runs in an async context — use await directly. Standard JS built-ins (JSON, Math, Array, etc.) are available — EXCEPT `Date.now()`/`Math.random()`/argless `new Date()`, which throw (they would break resume); pass timestamps in via `args`, stamp results after the workflow returns, and for randomness vary the agent prompt/label by index. No filesystem or Node.js API access.\n\nDEFAULT TO pipeline(). Only reach for a barrier (parallel between stages) when you genuinely need ALL prior-stage results together.\n\nA barrier is correct ONLY when stage N needs cross-item context from all of stage N-1:\n- Dedup/merge across the full result set before expensive downstream work\n- Early-exit if the total count is zero (\"0 bugs found → skip verification entirely\")\n- Stage N's prompt references \"the other findings\" for comparison\n\nA barrier is NOT justified by:\n- \"I need to flatten/map/filter first\" — do it inside a pipeline stage: pipeline(items, stageA, r => transform([r]).flat(), stageB)\n- \"The stages are conceptually separate\" — that's what pipeline() models. Separate stages ≠ synchronized stages.\n- \"It's cleaner code\" — barrier latency is real. If 5 finders run and the slowest takes 3× the fastest, a barrier wastes 2/3 of the fast finders' idle time.\n\nSmell test: if you wrote\n const a = await parallel(...)\n const b = transform(a) // flatten, map, filter — no cross-item dependency\n const c = await parallel(b.map(...))\nthat middle transform doesn't need the barrier. Rewrite as a pipeline with the transform inside a stage. When in doubt: pipeline.\n\nConcurrent agent() calls are capped at min(16, available CPUs - 2) per workflow — excess calls queue and run as slots free up. You can still pass 100 items to parallel()/pipeline() and they all complete; only ~10 run at any moment. Total agent count across a workflow's lifetime is capped at 1000 — a runaway-loop backstop set far above any real workflow. A single parallel()/pipeline() call accepts at most 4096 items; passing more is an explicit error, not a silent truncation.\n\nWhen a barrier IS correct — dedup across all findings before expensive verification:\n const all = await parallel(DIMENSIONS.map(d => () => agent(d.prompt, {schema: FINDINGS_SCHEMA})))\n const deduped = dedupeByFileAndLine(all.filter(Boolean).flatMap(r => r.findings)) // <-- genuinely needs ALL at once\n const verified = await parallel(deduped.map(f => () => agent(verifyPrompt(f), {schema: VERDICT_SCHEMA})))\n\nLoop-until-count pattern — accumulate to a target:\n const bugs = []\n while (bugs.length < 10) {\n const result = await agent(\"Find bugs in this codebase.\", {schema: BUGS_SCHEMA})\n bugs.push(...result.bugs)\n log(`${bugs.length}/10 found`)\n }\n\nLoop-until-budget pattern — scale depth to the user's \"+500k\" directive. Guard on budget.total: with no target set, remaining() is Infinity and the loop would run straight to the 1000-agent cap.\n const bugs = []\n while (budget.total && budget.remaining() > 50_000) {\n const result = await agent(\"Find bugs in this codebase.\", {schema: BUGS_SCHEMA})\n bugs.push(...result.bugs)\n log(`${bugs.length} found, ${Math.round(budget.remaining()/1000)}k remaining`)\n }\n\nComposing patterns — exhaustive review (find → dedup vs seen → diverse-lens panel → loop-until-dry):\n const seen = new Set(), confirmed = []\n let dry = 0\n while (dry < 2) { // loop-until-dry\n const found = (await parallel(FINDERS.map(f => () => // barrier: collect all finders this round\n agent(f.prompt, {phase: 'Find', schema: BUGS})))).filter(Boolean).flatMap(r => r.bugs)\n const fresh = found.filter(b => !seen.has(key(b))) // dedup vs ALL seen — plain code, not an agent\n if (!fresh.length) { dry++; continue }\n dry = 0; fresh.forEach(b => seen.add(key(b)))\n const judged = await parallel(fresh.map(b => () => // every fresh bug judged concurrently...\n parallel(['correctness','security','repro'].map(lens => () => // ...each by 3 distinct lenses\n agent(`Judge \"${b.desc}\" via the ${lens} lens — real?`, {phase: 'Verify', schema: VERDICT})))\n .then(vs => ({ b, real: vs.filter(Boolean).filter(v => v.real).length >= 2 }))))\n confirmed.push(...judged.filter(v => v.real).map(v => v.b))\n }\n return confirmed\n // dedup vs `seen`, NOT `confirmed` — else judge-rejected findings reappear every round and it never converges.\n\nQuality patterns — common shapes; pick by task and compose freely:\n- Adversarial verify: spawn N independent skeptics per finding, each prompted to REFUTE. Kill if ≥majority refute. Prevents plausible-but-wrong findings from surviving.\n const votes = await parallel(Array.from({length: 3}, () => () =>\n agent(`Try to refute: ${claim}. Default to refuted=true if uncertain.`, {schema: VERDICT})))\n const survives = votes.filter(Boolean).filter(v => !v.refuted).length >= 2\n- Perspective-diverse verify: when a finding can fail in more than one way, give each verifier a distinct lens (correctness, security, perf, does-it-reproduce) instead of N identical refuters — diversity catches failure modes redundancy can't.\n- Judge panel: generate N independent attempts from different angles (e.g. MVP-first, risk-first, user-first), score with parallel judges, synthesize from the winner while grafting the best ideas from runners-up. Beats one-attempt-iterated when the solution space is wide.\n- Loop-until-dry: for unknown-size discovery (bugs, issues, edge cases), keep spawning finders until K consecutive rounds return nothing new. Simple counters (while count < N) miss the tail.\n- Multi-modal sweep: parallel agents each searching a different way (by-container, by-content, by-entity, by-time). Each is blind to what the others surface; useful when one search angle won't find everything.\n- Completeness critic: a final agent that asks \"what's missing — modality not run, claim unverified, source unread?\" What it finds becomes the next round of work.\n- No silent caps: if a workflow bounds coverage (top-N, no-retry, sampling), `log()` what was dropped — silent truncation reads as \"covered everything\" when it didn't.\n\nScale to what the user asked for. \"find any bugs\" → a few finders, single-vote verify. \"thoroughly audit this\" or \"be comprehensive\" → larger finder pool, 3–5 vote adversarial pass, synthesis stage. When unsure, lean toward thoroughness for research/review/audit requests and toward brevity for quick checks.\n\nThese patterns aren't exhaustive — compose novel harnesses when the task calls for it (tournament brackets, self-repair loops, staged escalation, whatever fits).\n\nUse this tool for multi-step orchestration where control flow should be deterministic (loops, conditionals, fan-out) rather than model-driven.\n\n## Resume\n\nThe tool result includes a runId. To resume after a pause, kill, or script edit, relaunch with Workflow({scriptPath, resumeFromRunId}) — the longest unchanged prefix of agent() calls returns cached results instantly; the first edited/new call and everything after it runs live. Same script + same args → 100% cache hit. Before diagnosing why a completed workflow returned an empty or unexpected result, Read /journal.jsonl — it records each agent's actual return value; do not assume cached results are non-empty. Date.now()/Math.random()/new Date() are unavailable in scripts (they would break this) — stamp results after the workflow returns, or pass timestamps via args. Fallback when no journal is available: Read agent-.jsonl files in the transcript directory and hand-author a continuation script.", "nested_variants": [ { "when": "env.CLAUDE_CODE_SUBAGENT_MODEL_FORCE", "default_text": " Add `model` to a phase entry when that phase uses a specific model override.", "variant_text": "" }, { "when": "env.CLAUDE_CODE_SUBAGENT_MODEL_FORCE", "default_text": " model?: string,", "variant_text": "" }, { "when": "env.CLAUDE_CODE_SUBAGENT_MODEL_FORCE", "default_text": " opts.model overrides the model for this agent call. Default to omitting it — the agent inherits the main-loop model (the resolved session model), which is almost always correct. Only set it when you're highly confident a different tier fits the task; when unsure, omit.", "variant_text": "" } ] }, { "condition": "isDefault", "raw": "o", "captured_branch": "true", "captured_text": "This session has the default workflow size guideline:", "alternative_text": "A workflow size guideline is configured for this session:" }, { "condition": "not e in n", "raw": "!(e in n)", "captured_branch": "true", "captured_text": "medium — keep workflows under 10 agents", "alternative_text": "{{size}} — keep workflows under {{expr:e===\"small\" ? … : …}} agents", "nested_fragments": [ { "placeholder": "{{expr:e===\"small\" ? … : …}}", "condition": "size is \"small\"", "when_true": "5", "when_false": "{{expr:e===\"medium\" ? … : …}}", "nested_fragments": [ { "placeholder": "{{expr:e===\"medium\" ? … : …}}", "condition": "size is \"medium\"", "when_true": "10", "when_false": "{{expr:e===\"large\" && …}}", "nested_fragments": [ { "placeholder": "{{expr:e===\"large\" && …}}", "condition": "size is \"large\"", "when_true": "50", "when_false": "" } ] } ] } ] }, { "condition": "isDefault", "raw": "o", "captured_branch": "true", "captured_text": " The user can raise or remove it with \"Dynamic workflow size\" in /config.", "alternative_text": "" }, { "condition": "l===\"unrestricted\"", "raw": "l===\"unrestricted\"", "captured_branch": "false", "captured_text": "\n\nThis session has the default workflow size guideline: medium — keep workflows under 10 agents. This is a guideline, not a hard limit — follow it unless the user's prompt calls for a different scale. The user can raise or remove it with \"Dynamic workflow size\" in /config.", "alternative_text": "" } ], "variants_source": "branches read from prompt() code, matched against the interactive CLI capture", "constants": { "5": "5", "10": "10", "50": "50", "mt": "Agent", "t": "Execute a workflow script that orchestrates multiple subagents deterministically. Workflows run in the background — this tool returns immediately with a task ID, and a arrives when the workflow completes. Use /workflows to watch live progress.\n\nONLY call this tool when the user has explicitly opted into multi-agent orchestration. Workflows can spawn dozens of agents and consume a large amount of tokens; the user must request that scale, not have it inferred. Explicit opt-in means one of:\n- The user included the keyword \"ultracode\" in their prompt (you'll see a system-reminder confirming it).\n- Ultracode is on for the session (a system-reminder confirms it) — see **Ultracode** in the workflow authoring reference.\n- The user directly asked you to run a workflow or use multi-agent orchestration in their own words (\"use a workflow\", \"run a workflow\", \"fan out agents\", \"orchestrate this with subagents\"). The ask must be in the user's words — a task that would merely benefit from a workflow does not count.\n- The user invoked a skill or slash command whose instructions tell you to call Workflow.\n- The user asked you to run a specific named or saved workflow.\n\nFor any other task — even one that would clearly benefit from parallelism — do NOT call this tool. Use the Agent tool (if available) for individual subagents, or briefly describe what a multi-agent workflow could do and how much it would roughly cost, and ask the user whether to run it. Mention they can ask for one with \"use a workflow\" in a future message to skip the ask.\n\nEvery script must begin with `export const meta = {...}`: a PURE LITERAL (no variables, calls or interpolation) giving the workflow's `name`, a one-line `description` (shown in the permission dialog) and optionally `phases` — one `{ title, detail? }` per phase() call, titles matched exactly. Pass the script inline via `script` — do not Write it to a file first, and do not also set the tool's `name` input (that selects a saved workflow); it is plain JavaScript, not TypeScript.\n\nThe canonical multi-stage pattern — pipeline by default, each dimension verifies as soon as its review completes:\n export const meta = {\n name: 'review-changes',\n description: 'Review changed files across dimensions, verify each finding',\n phases: [{ title: 'Review' }, { title: 'Verify' }],\n }\n const DIMENSIONS = [{key: 'bugs', prompt: '...'}, {key: 'perf', prompt: '...'}]\n const results = await pipeline(\n DIMENSIONS,\n d => agent(d.prompt, {label: `review:${d.key}`, phase: 'Review', schema: FINDINGS_SCHEMA}),\n review => parallel(review.findings.map(f => () =>\n agent(`Adversarially verify: ${f.title}`, {label: `verify:${f.file}`, phase: 'Verify', schema: VERDICT_SCHEMA})\n .then(v => ({...f, verdict: v}))\n ))\n )\n const confirmed = results.flat().filter(Boolean).filter(f => f.verdict?.isReal)\n return { confirmed }\n // Dimension 'bugs' findings verify while dimension 'perf' is still reviewing. No wasted wall-clock.", "TP": "workflow-authoring", "i": "Before writing a script, load the `workflow-authoring` skill — the workflow authoring reference: script API and gotchas, resume, the **Ultracode** section, quality patterns, worked examples.", "o": "", "s": "", "r": "'worktree'", "n": "", "wF": "▸", "$R": "4096" }, "text_source": "captured (interactive, print)", "input_schema_source": "captured", "input_schema": { "$schema": "https://json-schema.org/draft/2020-12/schema", "type": "object", "properties": { "script": { "description": "Self-contained workflow script. Must begin with `export const meta = { name, description, phases }` (pure literal, no computed values) followed by the script body using agent()/parallel()/pipeline()/phase().", "type": "string", "maxLength": 524288 }, "name": { "description": "Name of a predefined workflow (built-in or from .claude/workflows/). Resolves to a self-contained script.", "type": "string" }, "description": { "description": "Ignored — set the workflow description in the script's `meta` block.", "type": "string" }, "title": { "description": "Ignored — set the workflow title in the script's `meta` block.", "type": "string" }, "args": { "description": "Optional input value exposed to the script as the global `args`, verbatim. Pass arrays/objects as actual JSON values, NOT as a JSON-encoded string — a stringified list breaks `args.filter`/`args.map` in the script. Use for parameterized named workflows (e.g. a research question)." }, "scriptPath": { "description": "Path to a workflow script file on disk. Every Workflow invocation persists its script under the session directory and returns the path in the tool result. To iterate, edit that file with Write/Edit and re-invoke Workflow with the same `scriptPath` instead of re-sending the full script. Takes precedence over `script` and `name`.", "type": "string" }, "resumeFromRunId": { "description": "Run ID of a prior Workflow invocation to resume from. Completed agent() calls with unchanged (prompt, opts) return their cached results instantly; only edited or new calls re-run. Same-session only. Stop the prior run first (TaskStop) before resuming.", "type": "string", "pattern": "^wf_[a-z0-9-]{6,}$" } }, "additionalProperties": false }, "parameters": [ { "name": "script", "type": "string", "required": false, "description": "Self-contained workflow script. Must begin with `export const meta = { name, description, phases }` (pure literal, no computed values) followed by the script body using agent()/parallel()/pipeline()/phase()." }, { "name": "name", "type": "string", "required": false, "description": "Name of a predefined workflow (built-in or from .claude/workflows/). Resolves to a self-contained script." }, { "name": "description", "type": "string", "required": false, "description": "Ignored — set the workflow description in the script's `meta` block." }, { "name": "title", "type": "string", "required": false, "description": "Ignored — set the workflow title in the script's `meta` block." }, { "name": "args", "type": "unknown", "required": false, "description": "Optional input value exposed to the script as the global `args`, verbatim. Pass arrays/objects as actual JSON values, NOT as a JSON-encoded string — a stringified list breaks `args.filter`/`args.map` in the script. Use for parameterized named workflows (e.g. a research question)." }, { "name": "scriptPath", "type": "string", "required": false, "description": "Path to a workflow script file on disk. Every Workflow invocation persists its script under the session directory and returns the path in the tool result. To iterate, edit that file with Write/Edit and re-invoke Workflow with the same `scriptPath` instead of re-sending the full script. Takes precedence over `script` and `name`." }, { "name": "resumeFromRunId", "type": "string", "required": false, "description": "Run ID of a prior Workflow invocation to resume from. Completed agent() calls with unchanged (prompt, opts) return their cached results instantly; only edited or new calls re-run. Same-session only. Stop the prior run first (TaskStop) before resuming." } ], "sdk_types": { "interface": "WorkflowInput", "agrees": true }, "output": "outputSchema fields (from code): `status`, `taskId`, `taskType`, `workflowName`, `runId`, `summary`, `transcriptDir`, `scriptPath`, `sessionUrl`, `warning`, `error`.", "available_in": "CLI, SDK unless disabled by settings or policy", "seen_in": "interactive CLI capture, -p/SDK capture", "definition_provenance_index": 35 }, "provenance": [ { "file": "chunk-rjcd3r0e.js", "binary_offset": 202936340, "length": 1323, "sha256": "148ba1a5070ad14031078ce2ccfba68d5e9b1d15bb62b1b216e6d1a82950dd1e", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-d27fev13.js", "binary_offset": 177235477, "length": 5, "sha256": "11b39c93777e8f1f3983bdba7c72b22fe68cfea20c677e9de53e17cb7dbfb19f", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-rjcd3r0e.js", "binary_offset": 202937668, "length": 1750, 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"platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-rjcd3r0e.js", "binary_offset": 202957247, "length": 2, "sha256": "75a11da44c802486bc6f65640aa48a730f0f684c5c07a42ba3cd1735eb3fb070", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-rjcd3r0e.js", "binary_offset": 202939483, "length": 2331, "sha256": "979337d7d1c993a897c2be2c9a0015c2ceabdaebdce4faea10d2001b881c3071", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-rjcd3r0e.js", "binary_offset": 202941818, "length": 274, "sha256": "aa84a3e0c4713971406930aa6093ae2789e24d8a0787dba648cf8edd29a406e4", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-rjcd3r0e.js", "binary_offset": 202942096, "length": 1025, "sha256": "c2422c9c8a828cd6a3bd304b35e02f11502be32b88e3854879ca57e10a0f3bcb", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-rjcd3r0e.js", "binary_offset": 202943129, "length": 77, "sha256": "b76bd1729af7833aa1f4256d885c496552ef1c1b2949d59812f80c4881e3d843", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-rjcd3r0e.js", "binary_offset": 202943208, "length": 101, "sha256": "e692324c4a6bb0c7bcfcf7f08af313676128d1329a7d2fa7359956dbe4a31c46", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-rjcd3r0e.js", "binary_offset": 202943317, "length": 16, "sha256": "4f4bcabd22486b0ff403cef819ed348ab6c3c17e61560e281e47cd7f2d8e80f5", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-rjcd3r0e.js", "binary_offset": 202943335, "length": 30, "sha256": "d78483c1c4d6a95713aa088e92999a01bb017364c2a0a5e168a4bfa827f0240d", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-rjcd3r0e.js", "binary_offset": 202936315, "length": 10, "sha256": "f7b176659a3c72924c077324f5254c5d676e84591129ee8ece60110a24510014", "version": 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174171402, "length": 6, "sha256": "05a6de83852b055d95ea85ee4395adbd13d3ac5d05e6afacad659f5cdd5ab344", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-rjcd3r0e.js", "binary_offset": 202947919, "length": 3310, "sha256": "3434e825b4bd56f042274db78bff2a5e177b51570ef929582f58a68886cf73b7", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-rjcd3r0e.js", "binary_offset": 202951234, "length": 5775, "sha256": "729934dd8d4066a10b55b98ce666254fba0dcd2d11afaa443ebd25d55b22d731", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-mw9espfa.js", "binary_offset": 177239095, "length": 57, "sha256": "35004f7f159e6f548a5eecde58efe0046abe48571a823aba1bdae1e365289983", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-mw9espfa.js", "binary_offset": 177238837, "length": 29, "sha256": "58baad1ecfee08d8222401b9126a50f1a4960e446b3f0070376163019b49893b", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-mw9espfa.js", "binary_offset": 177238873, "length": 7, "sha256": "13d4a518fd6369d7fefb39a491c3f63923583a1a0f66e83a25b42569261a7aef", "version": "2.1.282", "platform": "darwin-arm64", "role": "variant" }, { "file": "chunk-cqxmm4rt.js", "binary_offset": 204676568, "length": 9227, "sha256": "ca90c00d18893c25bd196706acb1c8ba38d6a760828ae1c52cd05226911a5bf7", "version": "2.1.282", "platform": "darwin-arm64", "role": "definition" } ] }, { "id": "tool-subagenthandback", "title": "SubagentHandback", "group": "Agents and tasks", "kind": "tool", "text": "Deliver your final report to the agent that spawned you (your caller). Use it once, for that hand-off only: when your work is complete, call SubagentHandback({message: }) as your last tool call and then stop. It is not a messaging channel: do not use it for progress updates or questions.\n\nOnly a report delivered through SubagentHandback reaches your caller; plain text you write at the end of your turn is NOT delivered. There is no recipient parameter: the report can only go to your caller.", "when": "Not in the built-in list. Passed as `handbackTool` when the Agent tool runs a subagent. alwaysLoad is true. Docs: provided only in auto mode, to locally run subagents other than forks.", "documented": "https://code.claude.com/docs/en/tools-reference", "details": { "aliases": [], "deferred": "no (alwaysLoad)", "read_only": false, "concurrency_safe": false, "definition": "chunk-p5d1vcm4.js @ char 2652", "should_defer": false, "is_enabled": "always (builder default)", "always_load": true, "search_hint": "deliver your final report to the agent that spawned you", "ui_description": "Deliver your final report to the agent that spawned you, once, as your last tool call. The only way your report reaches it.", "constants": { "eb": "SubagentHandback", "I": "Deliver your final report to the agent that spawned you (your caller). Use it once, for that hand-off only: when your work is complete, call SubagentHandback({message: }) as your last tool call and then stop. It is not a messaging channel: do not use it for progress updates or questions.\n\nOnly a report delivered through SubagentHandback reaches your caller; plain text you write at the end of your turn is NOT delivered. There is no recipient parameter: the report can only go to your caller." }, "text_source": "reconstructed from prompt()", "input_schema_source": "zod definition (static read)", "input_schema": { "type": "object", "properties": { "message": { "description": "Your full report for your caller", "type": "string" } }, "required": [ "message" ] }, "parameters": [ { "name": "message", "type": "string", "required": true, "description": "Your full report for your caller" } ], "output": "outputSchema fields (from code): `success`, `message`.", "available_in": "subagents only", "seen_in": "neither capture", "definition_provenance_index": 5 }, "provenance": [ { "file": "chunk-p5d1vcm4.js", "binary_offset": 187879526, "length": 141, "sha256": "9f2eac2691190f667d7d7ceecc87ad8369a957b0cfb5b12abb4583fdfeb72879", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-arhkbss2.js", "binary_offset": 180512776, "length": 16, "sha256": "eba978450d2bd178427e3012c25c00b6ef0c85015a29844d6f40b98303263e00", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-p5d1vcm4.js", "binary_offset": 187879672, "length": 183, "sha256": "5abe58de816c8217b8dcf0a0e6a2800812e4271f08fe0173d966c97dd280c3c5", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-arhkbss2.js", "binary_offset": 180512776, "length": 16, "sha256": "eba978450d2bd178427e3012c25c00b6ef0c85015a29844d6f40b98303263e00", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-p5d1vcm4.js", "binary_offset": 187879860, "length": 156, "sha256": "269a1b4aaf4b425ba065249639a65605f0f1ac56f8d01eb673166ecb10746f14", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-p5d1vcm4.js", "binary_offset": 187880583, "length": 2277, "sha256": "f4c527ea58fa77c55f53f395af966e9707c1c991a5b2ffdc00e792e057e4c6e2", "version": "2.1.282", "platform": "darwin-arm64", "role": "definition" } ] }, { "id": "tool-observerreport", "title": "ObserverReport", "group": "Agents and tasks", "kind": "tool", "text": "Send a report to your report target — the agent you observe, or the coordinating agent that spawned the worker you observe. The target is resolved from your observer pairing — there is no recipient to name. Use this only when you have something genuinely useful: a mistake about to compound, a missed constraint, prior art the observed agent should see. The expected steady state is silence — if nothing warrants action, end your turn without calling this.", "when": "Not in the built-in list. An observer's tool set is built by removing SendMessage, SubagentHandback, ObserverReport, Agent, Workflow, ScheduleWakeup, Monitor and CronCreate and appending this tool. Undocumented; read at `chunk-0vrknphh.js`.", "documented": null, "details": { "aliases": [], "deferred": "no", "read_only": false, "concurrency_safe": false, "definition": "chunk-0vrknphh.js @ char 4631", "should_defer": false, "is_enabled": true, "ui_description": "Send a report to your report target — the agent you observe, or the coordinating agent that spawned the worker you observe. The target is resolved from your observer pairing — there is no recipient to name. Use this only when you have something genuinely useful: a mistake about to compound, a missed constraint, prior art the observed agent should see. The expected steady state is silence — if nothing warrants action, end your turn without calling this.", "constants": { "ft": "Send a report to your report target — the agent you observe, or the coordinating agent that spawned the worker you observe. The target is resolved from your observer pairing — there is no recipient to name. Use this only when you have something genuinely useful: a mistake about to compound, a missed constraint, prior art the observed agent should see. The expected steady state is silence — if nothing warrants action, end your turn without calling this." }, "text_source": "reconstructed from prompt()", "input_schema_source": "zod definition (static read)", "input_schema": { "type": "object", "properties": { "report": { "description": "The report to deliver to your report target. Be concise and specific.", "type": "string", "minLength": 1 } }, "required": [ "report" ] }, "parameters": [ { "name": "report", "type": "string", "required": true, "description": "The report to deliver to your report target. Be concise and specific." } ], "available_in": "observer agents only", "seen_in": "neither capture", "definition_provenance_index": 1 }, "provenance": [ { "file": "chunk-0vrknphh.js", "binary_offset": 196943766, "length": 471, "sha256": "e6980b5a9a347f06ca8f532e825f17f35d74bf959e8dea23ebc8b2d1973ec002", "version": "2.1.282", "platform": "darwin-arm64", "role": "inlined" }, { "file": "chunk-0vrknphh.js", "binary_offset": 196944365, "length": 1605, "sha256": "ac9ebc83fe8932edd57a7e879abd12ef47136f3b2aba1a6a7397ad73d3e64cad", "version": "2.1.282", "platform": "darwin-arm64", "role": "definition" } ] }, { "id": "tool-askuserquestion", "title": "AskUserQuestion", "group": "Planning and interaction", "kind": "tool", "text": "Use this tool only when you are blocked on a decision that is genuinely the user's to make: one you cannot resolve from the request, the code, or sensible defaults.\n\nUsage notes:\n- Users will always be able to select \"Other\" to provide custom text input\n- Use multiSelect: true to allow multiple answers to be selected for a question\n- If you recommend a specific option, make that the first option in the list and add \"(Recommended)\" at the end of the label\n\nPlan mode note: To switch into plan mode, use EnterPlanMode (not this tool). Once in plan mode, use this tool to clarify requirements or choose between approaches BEFORE finalizing your plan. Do NOT use this tool to ask \"Is my plan ready?\", \"Should I proceed?\", or otherwise reference \"the plan\" in questions — the user cannot see the plan until you call ExitPlanMode for approval.\n\nReserve this for decisions where the user's answer changes what you do next — not for choices with a conventional default or facts you can verify in the codebase yourself. In those cases pick the obvious option, mention it in your response, and proceed.\n\nPreview feature:\nUse the optional `preview` field on options when presenting concrete artifacts that users need to visually compare:\n- ASCII mockups of UI layouts or components\n- Code snippets showing different implementations\n- Diagram variations\n- Configuration examples\n\nPreview content is rendered as markdown in a monospace box. Multi-line text with newlines is supported. When any option has a preview, the UI switches to a side-by-side layout with a vertical option list on the left and preview on the right. Do not use previews for simple preference questions where labels and descriptions suffice. Note: previews are only supported for single-select questions (not multiSelect).\n", "when": "isEnabled: off in a non-interactive session when channels are configured, and off in a non-interactive session unless a permission-prompt tool is set (not `none`). On otherwise.", "documented": "https://code.claude.com/docs/en/tools-reference#askuserquestion-tool-behavior", "details": { "aliases": [], "deferred": "no", "read_only": true, "concurrency_safe": true, "definition": "chunk-66wgdnma.js @ char 12393", "should_defer": false, "is_enabled": "conditional", "search_hint": "prompt the user with a multiple-choice question", "ui_description": "Asks the user multiple choice questions to gather information, clarify ambiguity, understand preferences, make decisions or offer them choices.", "template_matches_capture": [ { "capture": "interactive", "matches": true } ], "captured_values": [ { "placeholder": "{{flag:tengu_cinder_plover (default \"\")}}", "value": "Reserve this for decisions where the user's answer changes what you do next — not for choices with a conventional default or facts you can verify in the codebase yourself. In those cases pick the obvious option, mention it in your response, and proceed." }, { "placeholder": "{{flag:tengu_cinder_wren (default \"\")}}", "value": "Preview feature:\nUse the optional `preview` field on options when presenting concrete artifacts that users need to visually compare:\n- ASCII mockups of UI layouts or components\n- Code snippets showing different implementations\n- Diagram variations\n- Configuration examples\n\nPreview content is rendered as markdown in a monospace box. Multi-line text with newlines is supported. When any option has a preview, the UI switches to a side-by-side layout with a vertical option list on the left and preview on the right. Do not use previews for simple preference questions where labels and descriptions suffice. Note: previews are only supported for single-select questions (not multiSelect)." } ], "variants": [ { "when": "not lean prompt (options.leanPrompt, else the model's setting)", "captured_text": "\nReserve this for decisions where the user's answer changes what you do next — not for choices with a conventional default or facts you can verify in the codebase yourself. In those cases pick the obvious option, mention it in your response, and proceed.\n", "variant_text": "" } ], "conditional_fragments": [ { "condition": "typeof r===\"string\"", "raw": "typeof r===\"string\"", "captured_branch": "true", "captured_text": "Preview feature:\nUse the optional `preview` field on options when presenting concrete artifacts that users need to visually compare:\n- ASCII mockups of UI layouts or components\n- Code snippets showing different implementations\n- Diagram variations\n- Configuration examples\n\nPreview content is rendered as markdown in a monospace box. Multi-line text with newlines is supported. When any option has a preview, the UI switches to a side-by-side layout with a vertical option list on the left and preview on the right. Do not use previews for simple preference questions where labels and descriptions suffice. Note: previews are only supported for single-select questions (not multiSelect).", "alternative_text": "" }, { "condition": "typeof r===\"string\"?r.trim():\"\"", "raw": "s", "captured_branch": "true", "captured_text": "\nPreview feature:\nUse the optional `preview` field on options when presenting concrete artifacts that users need to visually compare:\n- ASCII mockups of UI layouts or components\n- Code snippets showing different implementations\n- Diagram variations\n- Configuration examples\n\nPreview content is rendered as markdown in a monospace box. Multi-line text with newlines is supported. When any option has a preview, the UI switches to a side-by-side layout with a vertical option list on the left and preview on the right. Do not use previews for simple preference questions where labels and descriptions suffice. Note: previews are only supported for single-select questions (not multiSelect).\n", "alternative_text": "" }, { "condition": "host renders extended questions", "raw": "Gle()", "captured_branch": "false", "captured_text": "", "alternative_text": "\nExtended questions (this host renders them):\n- Put the most important question first.\n- Omit \"kind\" for an ordinary choice question. Use \"kind\": \"text\" for an open-ended question (a text box, no options) and \"kind\": \"number\" with \"min\"/\"max\" (optionally \"step\", \"defaultValue\", \"unit\") for a quantity. Prefer choices whenever the likely answers can be listed.\n- Set multiSelect: true on choice questions unless the options are mutually exclusive (people answering are often still exploring).\n- Optional \"title\" is one short line above the questions; optional per-question \"description\" is one helper line. Option descriptions are optional here too: add one only when the label alone would be ambiguous.\n- Do not add \"Other\" or \"Skip\" options: the user can always type their own answer or leave a question unanswered. The user can also ask you for more questions; when the result says so, call this tool again with follow-up questions before doing the task.\n" }, { "condition": "l===void 0", "raw": "l===void 0", "captured_branch": "true", "captured_text": "Use this tool only when you are blocked on a decision that is genuinely the user's to make: one you cannot resolve from the request, the code, or sensible defaults.\n\nUsage notes:\n- Users will always be able to select \"Other\" to provide custom text input\n- Use multiSelect: true to allow multiple answers to be selected for a question\n- If you recommend a specific option, make that the first option in the list and add \"(Recommended)\" at the end of the label\n\nPlan mode note: To switch into plan mode, use EnterPlanMode (not this tool). Once in plan mode, use this tool to clarify requirements or choose between approaches BEFORE finalizing your plan. Do NOT use this tool to ask \"Is my plan ready?\", \"Should I proceed?\", or otherwise reference \"the plan\" in questions — the user cannot see the plan until you call ExitPlanMode for approval.\n\nReserve this for decisions where the user's answer changes what you do next — not for choices with a conventional default or facts you can verify in the codebase yourself. In those cases pick the obvious option, mention it in your response, and proceed.\n\nPreview feature:\nUse the optional `preview` field on options when presenting concrete artifacts that users need to visually compare:\n- ASCII mockups of UI layouts or components\n- Code snippets showing different implementations\n- Diagram variations\n- Configuration examples\n\nPreview content is rendered as markdown in a monospace box. Multi-line text with newlines is supported. When any option has a preview, the UI switches to a side-by-side layout with a vertical option list on the left and preview on the right. Do not use previews for simple preference questions where labels and descriptions suffice. Note: previews are only supported for single-select questions (not multiSelect).\n", "alternative_text": "Use this tool only when you are blocked on a decision that is genuinely the user's to make: one you cannot resolve from the request, the code, or sensible defaults.\n\nUsage notes:\n- Users will always be able to select \"Other\" to provide custom text input\n- Use multiSelect: true to allow multiple answers to be selected for a question\n- If you recommend a specific option, make that the first option in the list and add \"(Recommended)\" at the end of the label\n\nPlan mode note: To switch into plan mode, use EnterPlanMode (not this tool). Once in plan mode, use this tool to clarify requirements or choose between approaches BEFORE finalizing your plan. Do NOT use this tool to ask \"Is my plan ready?\", \"Should I proceed?\", or otherwise reference \"the plan\" in questions — the user cannot see the plan until you call ExitPlanMode for approval.\n{{expr:h ? … : …}}{{expr:s ? … : …}}{{expr:Gle() ? … : …}}{{expr:l===\"markdown\" ? … : …}}", "nested_variants": [ { "when": "not lean prompt (options.leanPrompt, else the model's setting)", "default_text": "{{expr:h ? … : …}}", "variant_text": "" } ], "nested_fragments": [ { "placeholder": "{{expr:h ? … : …}}", "condition": "x(\"tengu_cinder_plover\",\"\").trim()", "when_true": "\n{{flag:tengu_cinder_plover (default \"\")}}\n", "when_false": "\nReserve this for decisions where the user's answer changes what you do next — not for choices with a conventional default or facts you can verify in the codebase yourself. In those cases pick the obvious option, mention it in your response, and proceed.\n" }, { "placeholder": "{{expr:s ? … : …}}", "condition": "typeof r===\"string\"?r.trim():\"\"", "when_true": "\n{{expr:typeof r===\"string\" ? … : …}}\n", "when_false": "", "nested_fragments": [ { "placeholder": "{{expr:typeof r===\"string\" ? … : …}}", "condition": "typeof r===\"string\"", "when_true": "{{flag:tengu_cinder_wren (default \"\")}}", "when_false": "" } ] }, { "placeholder": "{{expr:Gle() ? … : …}}", "condition": "host renders extended questions", "when_true": "\nExtended questions (this host renders them):\n- Put the most important question first.\n- Omit \"kind\" for an ordinary choice question. Use \"kind\": \"text\" for an open-ended question (a text box, no options) and \"kind\": \"number\" with \"min\"/\"max\" (optionally \"step\", \"defaultValue\", \"unit\") for a quantity. Prefer choices whenever the likely answers can be listed.\n- Set multiSelect: true on choice questions unless the options are mutually exclusive (people answering are often still exploring).\n- Optional \"title\" is one short line above the questions; optional per-question \"description\" is one helper line. Option descriptions are optional here too: add one only when the label alone would be ambiguous.\n- Do not add \"Other\" or \"Skip\" options: the user can always type their own answer or leave a question unanswered. The user can also ask you for more questions; when the result says so, call this tool again with follow-up questions before doing the task.\n", "when_false": "" }, { "placeholder": "{{expr:l===\"markdown\" ? … : …}}", "condition": "_qn() is \"markdown\"", "when_true": "\nPreview feature:\nUse the optional `preview` field on options when presenting concrete artifacts that users need to visually compare:\n- ASCII mockups of UI layouts or components\n- Code snippets showing different implementations\n- Diagram variations\n- Configuration examples\n\nPreview content is rendered as markdown in a monospace box. Multi-line text with newlines is supported. When any option has a preview, the UI switches to a side-by-side layout with a vertical option list on the left and preview on the right. Do not use previews for simple preference questions where labels and descriptions suffice. Note: previews are only supported for single-select questions (not multiSelect).\n", "when_false": "{{expr:l===\"html\" && …}}", "nested_fragments": [ { "placeholder": "{{expr:l===\"html\" && …}}", "condition": "_qn() is \"html\"", "when_true": "\nPreview feature:\nUse the optional `preview` field on options when presenting concrete artifacts that users need to visually compare:\n- HTML mockups of UI layouts or components\n- Formatted code snippets showing different implementations\n- Visual comparisons or diagrams\n\nPreview content must be a self-contained HTML fragment (no / wrapper, no