taskwarrior_modify · Taskwarrior MCP Server MCP

WHAT IT DOES

What taskwarrior_modify does on Taskwarrior MCP Server

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

WHY IT NEEDS A POLICY

Why taskwarrior_modify needs a policy

This tool modifies existing task data reversibly (updating task properties like status, priority, tags, etc.). It is not destructive since modifications can be undone or corrected. It does not delete data (that is taskwarrior_delete), does not execute arbitrary code, and has no financial impact. An AI agent with access to this tool could inadvertently alter important tasks, making the severity medium rather than low.

From the tool's definition Tool name 'taskwarrior_modify' combined with server description stating it 'allow users to...modify...tasks'. The empty description limits confidence slightly, but the function name and context clearly indicate data modification.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

taskwarrior_modify Rate-limited

taskwarrior_modify 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "taskwarrior_modify": {
      "limits": [
        {
          "counter": "taskwarrior_modify_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Taskwarrior MCP Server, so you can run agents against it safely.

FAQ

Questions about taskwarrior_modify

What does the taskwarrior_modify tool do? +

taskwarrior_modify. It is categorised as a Write tool in the Taskwarrior MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on taskwarrior_modify? +

Register the Taskwarrior MCP Server MCP server in PolicyLayer and add a rule for taskwarrior_modify: 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 Taskwarrior MCP Server. Nothing to install.

What risk level is taskwarrior_modify? +

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

Can I rate-limit taskwarrior_modify? +

Yes. Add a rate_limit block to the taskwarrior_modify 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 taskwarrior_modify completely? +

Set action: deny in the PolicyLayer policy for taskwarrior_modify. 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 taskwarrior_modify? +

taskwarrior_modify is provided by the Taskwarrior MCP Server MCP server (tylyan/taskwarrior-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.