Fetch a list of available health metrics in markdown format.
AI agents call fetch_available_metrics to retrieve information from Senechal MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and lists available health metrics—a read-only query operation. It does not create, modify, delete, execute code, or commit financial obligations. The 'fetch' verb and 'list' semantic confirm data retrieval without side effects. Severity is low because listing metadata about available metrics poses minimal risk even if misused by an AI agent.
From the tool's definition Tool name 'fetch_available_metrics' and description 'Fetch a list of available health metrics in markdown format' indicates a retrieval operation with no modification or execution of external processes.
Attacks that exploit this kind of access
Fetch a list of available health metrics in markdown format. It is categorised as a Read tool in the Senechal MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Senechal MCP Server MCP server in PolicyLayer and add a rule for fetch_available_metrics: 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 Senechal MCP Server. Nothing to install.
fetch_available_metrics 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 fetch_available_metrics 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 fetch_available_metrics. 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.
fetch_available_metrics is provided by the Senechal MCP Server MCP server (mattjoyce/senechal-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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