camera_control · Homeassistant MCP: Risk & Policy

WHAT IT DOES

What camera_control does on Homeassistant

AI agents invoke camera_control to trigger actions in Homeassistant. 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 camera_control needs a policy

Based on the name and server context, this tool likely controls camera devices (e.g., enable/disable recording, pan/tilt, snapshots). 'Control' implies triggering external operations on physical devices. This is most consistent with Execute. However, the empty description significantly lowers confidence. Severity is medium given potential privacy implications of camera manipulation.

From the tool's definition Tool name 'camera_control' on a Home Assistant MCP server that 'controls devices and services'; description is empty and uninformative.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

camera_control Rate-limited

camera_control 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": {
    "camera_control": {
      "limits": [
        {
          "counter": "camera_control_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 Homeassistant, so you can run agents against it safely.

FAQ

Questions about camera_control

What does the camera_control tool do? +

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

How do I enforce a policy on camera_control? +

Register the Homeassistant MCP server in PolicyLayer and add a rule for camera_control: 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 Homeassistant. Nothing to install.

What risk level is camera_control? +

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

Can I rate-limit camera_control? +

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

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

camera_control is provided by the Homeassistant MCP server (robbrad/homeassistant-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.