Medium Risk

decompose_task

Decompose a large task into smaller subtasks. This tool helps break down complex tasks into manageable subtasks. Subtasks can be linked with sequential dependencies and grouped by tag. Note: Taskdog does not have parent-child relationships. Instead, use dependencies + tags + notes to express rela...

How to control decompose_task ↓

What decompose_task does on Taskdog

AI agents use decompose_task to create or update resources in Taskdog — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Taskdog environment.

Medium Risk

Why decompose_task needs a policy

This tool creates multiple new data records (subtasks) as a result of decomposing an existing task. While the operation is reversible (subtasks can be deleted via delete_task), it modifies the task structure by adding new entities to the database. This is characteristic of Write category operations.

From the tool's definition Tool description states it 'helps break down complex tasks into manageable subtasks' and takes a task_id to decompose along with a list of subtask definitions to create.

Documented attack patterns abuse exactly the kind of access decompose_task gives an agent:

How to control decompose_task

PolicyLayer is an MCP gateway — it sits between your AI agents and Taskdog, and nothing reaches the server without passing your rules. This is the rule we recommend for decompose_task:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "decompose_task": {
      "limits": [
        {
          "counter": "decompose_task_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

decompose_task stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

  1. Create a free account and register Taskdog — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
LIMIT THIS TOOL →

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Related tools and policies

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Questions about decompose_task

What does the decompose_task tool do? +

Decompose a large task into smaller subtasks. This tool helps break down complex tasks into manageable subtasks. Subtasks can be linked with sequential dependencies and grouped by tag. Note: Taskdog does not have parent-child relationships. Instead, use dependencies + tags + notes to express relationships. Args: task_id: ID of the original task to decompose subtasks: List of subtask definitions, each with: - name: Subtask name (required) - estimated_duration: Hours to complete (required) - priority: Priority level (optional, inherits from original) - tags: Additional tags (optional) group_tag: Tag to add to all subtasks for grouping (e.g., 'feature-x') create_dependencies: If True, create sequential dependencies archive_original: If True, archive the original task after decomposition Returns: Decomposition result with created subtask IDs. It is categorised as a Write tool in the Taskdog MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on decompose_task? +

Register the Taskdog MCP server in PolicyLayer and add a rule for decompose_task: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Taskdog. Nothing to install.

What risk level is decompose_task? +

decompose_task is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit decompose_task? +

Yes. Add a rate_limit block to the decompose_task rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block decompose_task completely? +

Set action: deny in the PolicyLayer policy for decompose_task. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides decompose_task? +

decompose_task is provided by the Taskdog MCP server (kohei-wada/taskdog). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Taskdog tool call.

Start from Taskdog, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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