tesla_honk · Mcp Teslamate Fleet MCP: Risk & Policy

WHAT IT DOES

What tesla_honk does on Mcp Teslamate Fleet

AI agents invoke tesla_honk to trigger actions in Mcp Teslamate Fleet. 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 tesla_honk needs a policy

This tool executes a live command that causes a physical effect (honking the vehicle's horn) in the real world. It is not a read or write operation on data, but an external operational trigger. Misuse could cause noise disturbance or reveal vehicle location, warranting medium severity.

From the tool's definition 'Honk the horn' — triggers a physical action on a real vehicle via the Fleet API

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

tesla_honk Rate-limited

tesla_honk 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": {
    "tesla_honk": {
      "limits": [
        {
          "counter": "tesla_honk_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 Mcp Teslamate Fleet, so you can run agents against it safely.

FAQ

Questions about tesla_honk

What does the tesla_honk tool do? +

Honk the horn. It is categorised as a Execute tool in the Mcp Teslamate Fleet MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on tesla_honk? +

Register the Mcp Teslamate Fleet MCP server in PolicyLayer and add a rule for tesla_honk: 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 Mcp Teslamate Fleet. Nothing to install.

What risk level is tesla_honk? +

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

Can I rate-limit tesla_honk? +

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

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

tesla_honk is provided by the Mcp Teslamate Fleet MCP server (lodordev/mcp-teslamate-fleet). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.