Check health of a Stockyard tool
AI agents call stockyard_health to retrieve information from Stockyard MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a health check, which is a read-only query operation that retrieves status information about a Stockyard tool. It does not create, modify, delete, or execute any external operations—it simply inspects and reports the current state of a tool, making it a classic Read category operation with low severity.
From the tool's definition Tool name 'stockyard_health' and description 'Check health of a Stockyard tool' indicate a monitoring/status query operation with no data modification or side effects.
Attacks that exploit this kind of access
Check health of a Stockyard tool. It is categorised as a Read tool in the Stockyard MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Stockyard MCP Server MCP server in PolicyLayer and add a rule for stockyard_health: 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 Stockyard MCP Server. Nothing to install.
stockyard_health 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 stockyard_health 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 stockyard_health. 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.
stockyard_health is provided by the Stockyard MCP Server MCP server (stockyard-dev/stockyard-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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