manage_party · ChatRPG MCP: Risk & Policy

WHAT IT DOES

What manage_party does on ChatRPG

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

WHY IT NEEDS A POLICY

Why manage_party needs a policy

This tool modifies game state by managing party membership and roles. While 'remove' and 'clear' delete party assignments, they are reversible through 'add' operations and do not permanently destroy character entities. The primary operations (add, set_role) are write-class modifications.

From the tool's definition The tool description explicitly lists operations including 'add', 'remove', 'set_role', and 'clear', which create, modify, and reversibly delete party compositions.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

manage_party Rate-limited

manage_party 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": {
    "manage_party": {
      "limits": [
        {
          "counter": "manage_party_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 ChatRPG, so you can run agents against it safely.

FAQ

Questions about manage_party

What does the manage_party tool do? +

Manage party composition. Operations: add (add character to party with optional role), remove (remove character from party), list (show party roster), get (get party member details), set_role (assign role to party member), clear (remove all members). Roles: leader, scout, healer, tank, support, damage, utility, other. It is categorised as a Write tool in the ChatRPG MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on manage_party? +

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

What risk level is manage_party? +

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

Can I rate-limit manage_party? +

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

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

manage_party is provided by the ChatRPG MCP server (mnehmos/mnehmos.chatrpg.game). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.