start_party_mode · DM20 Protocol MCP: Risk & Policy

WHAT IT DOES

What start_party_mode does on DM20 Protocol

AI agents invoke start_party_mode to trigger actions in DM20 Protocol. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why start_party_mode needs a policy

Without a description, confidence is reduced. However, the naming pattern and server context suggest this tool triggers an operation (mode activation) rather than simple data retrieval or modification. Mode-switching in a multiplayer D&D context can trigger cascading effects on game state, NPCs, and player interaction rules.

From the tool's definition Tool name 'start_party_mode' lacks a description, but within the context of a D&D campaign management server, 'start_party_mode' likely triggers state transitions or initiates game sessions that affect shared game state.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

start_party_mode Rate-limited

start_party_mode stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "start_party_mode": {
      "limits": [
        {
          "counter": "start_party_mode_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches DM20 Protocol, so you can run agents against it safely.

FAQ

Questions about start_party_mode

What does the start_party_mode tool do? +

start_party_mode. It is categorised as a Execute tool in the DM20 Protocol MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on start_party_mode? +

Register the DM20 Protocol MCP server in PolicyLayer and add a rule for start_party_mode: 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 DM20 Protocol. Nothing to install.

What risk level is start_party_mode? +

start_party_mode is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit start_party_mode? +

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

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

start_party_mode is provided by the DM20 Protocol MCP server (polloinfilzato/dm20-protocol). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.