Sweep 22 Sep 2026 · 17:19Z Build v2.1.280 501 read Stable v2.1.267 Latest v2.1.280 Next v2.1.280 Feeds RSS JSON llms.txt Unofficial
Tool description

TaskUpdate, as sent

CLI Claude Code, interactive mode, v2.1.280. 12 model strings share this prompt, byte for byte.

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Reach12model strings receive this description
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Parameters91 of them required Tools in captureall of themevery description on this arm
Plain text · sha256 f7d5cbed53a8

The description, rendered

This renders the markdown inside the description, so it isn’t quite the description itself.

The raw view and the plain text are the bytes as they were sent.

Use this tool to update a task in the task list.

When to Use This Tool

Mark tasks as resolved:

  • When you have completed the work described in a task

  • When a task is no longer needed or has been superseded

  • IMPORTANT: Always mark your assigned tasks as resolved when you finish them

  • After resolving, call TaskList to find your next task

  • ONLY mark a task as completed when you have FULLY accomplished it

  • If you encounter errors, blockers, or cannot finish, keep the task as in_progress

  • When blocked, create a new task describing what needs to be resolved

  • Never mark a task as completed if:

    • Tests are failing
    • Implementation is partial
    • You encountered unresolved errors
    • You couldn't find necessary files or dependencies

Delete tasks:

  • When a task is no longer relevant or was created in error
  • Setting status to deleted permanently removes the task

Update task details:

  • When requirements change or become clearer
  • When establishing dependencies between tasks

Fields You Can Update

  • status: The task status (see Status Workflow below)
  • subject: Change the task title (imperative form, e.g., "Run tests")
  • description: Change the task description
  • activeForm: Present continuous form shown in spinner when in_progress (e.g., "Running tests")
  • owner: Change the task owner (agent name)
  • metadata: Merge metadata keys into the task (set a key to null to delete it)
  • addBlocks: Mark tasks that cannot start until this one completes
  • addBlockedBy: Mark tasks that must complete before this one can start

Status Workflow

Status progresses: pendingin_progresscompleted

Use deleted to permanently remove a task.

Staleness

Make sure to read a task's latest state using TaskGet before updating it.

Examples

Mark task as in progress when starting work:

{"taskId": "1", "status": "in_progress"}

Mark task as completed after finishing work:

{"taskId": "1", "status": "completed"}

Delete a task:

{"taskId": "1", "status": "deleted"}

Claim a task by setting owner:

{"taskId": "1", "owner": "my-name"}

Set up task dependencies:

{"taskId": "2", "addBlockedBy": ["1"]}

What it accepts

9 parameters The JSON parameter schema sent beside this description, 1,400 characters of it. Name, type, then whether the client marked it required.
activeForm string optional Present continuous form shown in spinner when in_progress (e.g., "Running tests")
addBlockedBy string[] optional Task IDs that block this task
addBlocks string[] optional Task IDs that this task blocks
description string optional New description for the task
metadata object optional Metadata keys to merge into the task. Set a key to null to delete it.
owner string optional New owner for the task
status any optional New status for the task
subject string optional New subject for the task
taskId string required The ID of the task to update

sha256 03ce44584b2b · the schema as the client sent it:

{ "$schema": "https://json-schema.org/draft/2020-12/schema", "additionalProperties": false, "properties": { "activeForm": { "description": "Present continuous form shown in spinner when in_progress (e.g., \"Running tests\")", "type": "string" }, "addBlockedBy": { "description": "Task IDs that block this task", "items": { "type": "string" }, "type": "array" }, "addBlocks": { "description": "Task IDs that this task blocks", "items": { "type": "string" }, "type": "array" }, "description": { "description": "New description for the task", "type": "string" }, "metadata": { "additionalProperties": {}, "description": "Metadata keys to merge into the task. Set a key to null to delete it.", "propertyNames": { "type": "string" }, "type": "object" }, "owner": { "description": "New owner for the task", "type": "string" }, "status": { "anyOf": [ { "enum": [ "pending", "in_progress", "completed" ], "type": "string" }, { "const": "deleted", "type": "string" } ], "description": "New status for the task" }, "subject": { "description": "New subject for the task", "type": "string" }, "taskId": { "description": "The ID of the task to update", "type": "string" } }, "required": [ "taskId" ], "type": "object" }