update_plan · Planning Game MCP: Risk & Policy

WHAT IT DOES

What update_plan does on Planning Game

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

WHY IT NEEDS A POLICY

Why update_plan needs a policy

This tool modifies plan metadata but does not delete or irreversibly destroy data. The changes to title, objective, status, and phases are reversible—they can be updated again to previous values.

From the tool's definition Tool name 'update_plan' and description 'Update a development plan (title, objective, status, phases)' indicates modification of existing data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_plan Rate-limited

update_plan 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": {
    "update_plan": {
      "limits": [
        {
          "counter": "update_plan_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 Planning Game, so you can run agents against it safely.

FAQ

Questions about update_plan

What does the update_plan tool do? +

Update a development plan (title, objective, status, phases). It is categorised as a Write tool in the Planning Game MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on update_plan? +

Register the Planning Game MCP server in PolicyLayer and add a rule for update_plan: 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 Planning Game. Nothing to install.

What risk level is update_plan? +

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

Can I rate-limit update_plan? +

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

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

update_plan is provided by the Planning Game MCP server (planning-game-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.