karea_add_note · Karea MCP: Risk & Policy

WHAT IT DOES

What karea_add_note does on Karea

AI agents use karea_add_note 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_add_note needs a policy

Adding a note is a write operation that creates new data and modifies task state, but is fully reversible (notes can be edited or deleted). It does not execute code, delete data irreversibly, or move money.

From the tool's definition Tool description states 'Add a note to a task' — this creates/appends new data (a note) to an existing task record, modifying the task's state reversibly.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

karea_add_note Rate-limited

karea_add_note 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_add_note": {
      "limits": [
        {
          "counter": "karea_add_note_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_add_note

What does the karea_add_note tool do? +

Add a note to a task. 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_add_note? +

Register the Karea MCP server in PolicyLayer and add a rule for karea_add_note: 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_add_note? +

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

Can I rate-limit karea_add_note? +

Yes. Add a rate_limit block to the karea_add_note 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_add_note completely? +

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

karea_add_note 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.