services
Return available Home Assistant service domains and service schemas.
This record as markdown: /tools/mcp-control-plane/services.md
What services does on Mcp Control Plane
AI agents call services to retrieve information from Mcp Control Plane without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why services is rated Low
This is a pure query operation that fetches and exposes service definitions and metadata from Home Assistant. It has no side effects, does not execute actions, and does not modify any data. The low severity reflects minimal blast radius—even if misused by an agent, it only reveals what services are available, not sensitive data or credentials. Classification as Read is appropriate for informational retrieval tools.
From the tool's definition Tool returns 'available Home Assistant service domains and service schemas' — a retrieval operation that reads metadata about available services without executing them or modifying state.
Attacks that exploit this kind of access
The rule that runs services safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Mcp Control Plane, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For services, this is the rule to start with:
services is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Mcp Control Plane, apply this rule, and every services call is checked against it from then on.
Questions about services
Return available Home Assistant service domains and service schemas. It is categorised as a Read tool in the Mcp Control Plane MCP Server, which means it retrieves data without modifying state.
Register the Mcp Control Plane MCP server in PolicyLayer and add a rule for services: 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 Control Plane. Nothing to install.
services is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the services 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.
Set action: deny in the PolicyLayer policy for services. 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.
services is provided by the Mcp Control Plane MCP server (albertik322-sudo/mcp-control-plane). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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