karea_done · Karea MCP: Risk & Policy

WHAT IT DOES

What karea_done does on Karea

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

WHY IT NEEDS A POLICY

Why karea_done needs a policy

This tool changes task data (status field) but the action is reversible: tasks can be reopened or their status changed back. It affects multiple records but lacks the irreversibility of a Destructive action (no deletion/purging). It's a Write operation that updates task state.

From the tool's definition Tool description states 'Mark multiple tasks as done at once' — this modifies task state/status reversibly by marking them complete.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

karea_done Rate-limited

karea_done 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": {
    "karea_done": {
      "limits": [
        {
          "counter": "karea_done_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 Karea, so you can run agents against it safely.

FAQ

Questions about karea_done

What does the karea_done tool do? +

Mark multiple tasks as done at once. It is categorised as a Write tool in the Karea MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on karea_done? +

Register the Karea MCP server in PolicyLayer and add a rule for karea_done: 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 Karea. Nothing to install.

What risk level is karea_done? +

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

Can I rate-limit karea_done? +

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

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

karea_done is provided by the Karea MCP server (starecz/karea-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.