completeTodo · Todo MCP: Risk & Policy

WHAT IT DOES

What completeTodo does on Todo

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

WHY IT NEEDS A POLICY

Why completeTodo needs a policy

An AI agent can call completeTodo faster than any human can review — one bad instruction and it creates or modifies resources in Todo by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

completeTodo Rate-limited

completeTodo 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": {
    "completeTodo": {
      "limits": [
        {
          "counter": "completetodo_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 Todo, so you can run agents against it safely.

FAQ

Questions about completeTodo

What does the completeTodo tool do? +

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

How do I enforce a policy on completeTodo? +

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

What risk level is completeTodo? +

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

Can I rate-limit completeTodo? +

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

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

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