Navigate_Ship · SpaceTraders MCP Server MCP: Risk & Policy

WHAT IT DOES

What Navigate_Ship does on SpaceTraders MCP Server

AI agents invoke Navigate_Ship to trigger actions in SpaceTraders 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 Navigate_Ship needs a policy

Navigate_Ship almost certainly triggers movement/navigation of a ship entity in the game universe, which is an action with externally-dependent effects (destination, trajectory, fuel consumption, arrival state). This is Execute rather than Write because it triggers an operation in an external system (SpaceTraders API) whose consequences depend on the arguments passed.

From the tool's definition Tool name 'Navigate_Ship' indicates execution of a ship navigation command. Context shows this is part of SpaceTraders game API for managing fleets and operations.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

Navigate_Ship Rate-limited

Navigate_Ship 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": {
    "Navigate_Ship": {
      "limits": [
        {
          "counter": "navigate_ship_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 SpaceTraders MCP Server, so you can run agents against it safely.

FAQ

Questions about Navigate_Ship

What does the Navigate_Ship tool do? +

Navigate_Ship. It is categorised as a Execute tool in the SpaceTraders 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 Navigate_Ship? +

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

What risk level is Navigate_Ship? +

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

Can I rate-limit Navigate_Ship? +

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

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

Navigate_Ship is provided by the SpaceTraders MCP Server MCP server (thevalverde/spacetraders-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.