launch_game · Lutris MCP Server MCP: Risk & Policy

WHAT IT DOES

What launch_game does on Lutris MCP Server

AI agents invoke launch_game to trigger actions in Lutris MCP Server. 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 launch_game needs a policy

Launching a game via Lutris triggers external code execution outside the MCP server's direct control. The effects are dependent on which game is selected and could include running arbitrary code packaged within game binaries, accessing system resources, and performing actions determined by game logic.

From the tool's definition Tool name 'launch_game' and description 'Launch an installed game via Lutris' indicate execution of an external operation (game process) whose effects depend on arguments (which game to launch).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

launch_game Rate-limited

launch_game 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": {
    "launch_game": {
      "limits": [
        {
          "counter": "launch_game_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 Lutris MCP Server, so you can run agents against it safely.

FAQ

Questions about launch_game

What does the launch_game tool do? +

Launch an installed game via Lutris. It is categorised as a Execute tool in the Lutris MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on launch_game? +

Register the Lutris MCP Server MCP server in PolicyLayer and add a rule for launch_game: 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 Lutris MCP Server. Nothing to install.

What risk level is launch_game? +

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

Can I rate-limit launch_game? +

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

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

launch_game is provided by the Lutris MCP Server MCP server (praeses0/lutris-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.