get_device_capabilities

THE RISK

Low Risk

Why get_device_capabilities needs a policy

This tool retrieves capability information about a smart home device to enable client-side routing decisions. It performs a read-only query without creating, modifying, deleting, or executing any actions on devices or smart home systems. The capability schema is informational metadata used for UI/routing logic, not for control or state changes.

From the tool's definition Tool description states it 'Resolve one device and return its standard capability schema' - a retrieval operation with no modification or side effects. The verb 'return' and noun 'schema' indicate data querying.

Documented attack patterns abuse exactly the kind of access get_device_capabilities gives an agent:

POLICY

How to control get_device_capabilities

PolicyLayer is an MCP gateway — it sits between your AI agents and 米家 MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_device_capabilities:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_device_capabilities": {}
  }
}

get_device_capabilities is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register 米家 MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More 米家 MCP Server tools

Destructive clear_saved_login Clear saved login credentials so the next connection triggers QR login. Execute execute_scene Execute a scene by friendly name or scene id. Execute control_by_intent Route a natural-language-like smart-home request to the best product tool. Execute control_device Control a device through capability operations like turn_on, set_brightness, set_target_te Execute reconnect_service Reconnect to Mijia cloud, optionally clearing saved login first. Execute turn_off_device Turn off a device. Execute turn_on_device Turn on a device. Execute set_cover_position Set position for any cover-capable device such as a curtain or blind.

All 26 米家 MCP Server tools →

Read tools on other servers

M-Team MCP Server get_torrent_detail YouTube MCP Server search_channel Android Forensics ADB MCP Server parse_browser_history 0xarchive web3_challenge

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about get_device_capabilities

What does the get_device_capabilities tool do? +

Resolve one device and return its standard capability schema for stable client-side routing. It is categorised as a Read tool in the 米家 MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_device_capabilities? +

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

What risk level is get_device_capabilities? +

get_device_capabilities is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_device_capabilities? +

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

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

get_device_capabilities is provided by the 米家 MCP Server MCP server (javen-yan/miot-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every 米家 MCP Server tool call.

Start from 米家 MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →