Check health of one or more services. Safe read-only operation.
AI agents call check_services_health to retrieve information from Last Rock MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves health status information about services without any side effects, modifications, or state changes. It is a purely informational query operation that fits the Read category definition of retrieving or querying data with no side effects.
From the tool's definition Tool description explicitly states 'Safe read-only operation' and the name 'check_services_health' indicates querying/monitoring service status without modification.
Attacks that exploit this kind of access
Check health of one or more services. Safe read-only operation. It is categorised as a Read tool in the Last Rock MCP MCP Server, which means it retrieves data without modifying state.
Register the Last Rock MCP server in PolicyLayer and add a rule for check_services_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 Last Rock MCP. Nothing to install.
check_services_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 check_services_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 check_services_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.
check_services_health is provided by the Last Rock MCP server (itsablabla/lastrock-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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