tesla_charge_start · Mcp Teslamate Fleet MCP: Risk & Policy

WHAT IT DOES

What tesla_charge_start does on Mcp Teslamate Fleet

AI agents invoke tesla_charge_start 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_charge_start needs a policy

This tool sends a command to a Tesla vehicle to begin charging, which is an external real-world action. While it is reversible (charging can be stopped), it initiates a physical process on an external system. It is Execute-level because it triggers an external operation whose effect depends on the vehicle's state and connection.

From the tool's definition 'Start charging (vehicle must be plugged in)' — triggers an external physical operation on a vehicle

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

tesla_charge_start Rate-limited

tesla_charge_start 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_charge_start": {
      "limits": [
        {
          "counter": "tesla_charge_start_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_charge_start

What does the tesla_charge_start tool do? +

Start charging (vehicle must be plugged in). 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_charge_start? +

Register the Mcp Teslamate Fleet MCP server in PolicyLayer and add a rule for tesla_charge_start: 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_charge_start? +

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

Can I rate-limit tesla_charge_start? +

Yes. Add a rate_limit block to the tesla_charge_start 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_charge_start completely? +

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

tesla_charge_start 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.