create_decision_record · Todos MCP: Risk & Policy

WHAT IT DOES

What create_decision_record does on Todos

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

WHY IT NEEDS A POLICY

Why create_decision_record needs a policy

This tool creates/writes a decision record, which is a reversible data creation action. It does not execute arbitrary code, delete data, move money, or trigger destructive operations. The blast radius is minimal—a poorly-written decision record can be updated or deleted without significant impact on system integrity.

From the tool's definition Tool is named 'create_decision_record' and described as creating 'an ADR-style local decision record'. This is a creation operation ('create') that adds new data (a decision record) to local storage.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_decision_record Rate-limited

create_decision_record 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": {
    "create_decision_record": {
      "limits": [
        {
          "counter": "create_decision_record_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 Todos, so you can run agents against it safely.

FAQ

Questions about create_decision_record

What does the create_decision_record tool do? +

Create an ADR-style local decision record. It is categorised as a Write tool in the Todos MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_decision_record? +

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

What risk level is create_decision_record? +

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

Can I rate-limit create_decision_record? +

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

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

create_decision_record is provided by the Todos MCP server (@hasna/todos). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.