unarchive_agent · Todos MCP: Risk & Policy

WHAT IT DOES

What unarchive_agent does on Todos

AI agents use unarchive_agent 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 unarchive_agent needs a policy

This tool modifies agent state from archived to active, which is reversible and represents data mutation. While the impact is relatively contained to agent lifecycle management, it could affect task assignments or workflows if misused by an AI agent (e.g., restoring unwanted agents). The medium severity reflects moderate blast radius in a task management context.

From the tool's definition The tool 'unarchive_agent' performs a state change operation: 'Restore an archived agent back to active status.' This is a modification that reverses a previous archival action, making it a Write operation rather than a Read (no retrieval-only) or Destructive…

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

unarchive_agent Rate-limited

unarchive_agent 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": {
    "unarchive_agent": {
      "limits": [
        {
          "counter": "unarchive_agent_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 unarchive_agent

What does the unarchive_agent tool do? +

Restore an archived agent back to active status. Resolve by id or name. 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 unarchive_agent? +

Register the Todos MCP server in PolicyLayer and add a rule for unarchive_agent: 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 unarchive_agent? +

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

Can I rate-limit unarchive_agent? +

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

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

unarchive_agent 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.