claim-todo · Mmc MCP: Risk & Policy

WHAT IT DOES

What claim-todo does on Mmc

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

WHY IT NEEDS A POLICY

Why claim-todo needs a policy

Claiming a todo modifies its state (marking it as claimed/in-progress) and associates the agent with a workflow instance. This is a reversible state change (Write), not a destructive or financial action. Misuse could disrupt workflow orchestration by incorrectly claiming work items.

From the tool's definition 'Claim a pending todo work item and join its workflow instance'

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

claim-todo Rate-limited

claim-todo 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": {
    "claim-todo": {
      "limits": [
        {
          "counter": "claim-todo_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 Mmc, so you can run agents against it safely.

FAQ

Questions about claim-todo

What does the claim-todo tool do? +

Claim a pending todo work item and join its workflow instance. Returns the todo. It is categorised as a Write tool in the Mmc MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on claim-todo? +

Register the Mmc MCP server in PolicyLayer and add a rule for claim-todo: 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 Mmc. Nothing to install.

What risk level is claim-todo? +

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

Can I rate-limit claim-todo? +

Yes. Add a rate_limit block to the claim-todo 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 claim-todo completely? +

Set action: deny in the PolicyLayer policy for claim-todo. 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 claim-todo? +

claim-todo is provided by the Mmc MCP server (modelmycontext/mmc-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.