Check health status of all components.
AI agents call health_check to retrieve information from Codebase Contextifier 9000 without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Health checks are read-only operations that query the operational state of system components and return status information. This has no side effects, no code execution capability, and no data modification. The low severity reflects that misuse would only expose system state information, not enable harmful actions against code or infrastructure.
From the tool's definition Tool name 'health_check' and description 'Check health status of all components' indicate a monitoring/diagnostic operation that retrieves status information without modifying, executing, or deleting anything.
Attacks that exploit this kind of access
Check health status of all components. It is categorised as a Read tool in the Codebase Contextifier 9000 MCP Server, which means it retrieves data without modifying state.
Register the Codebase Contextifier 9000 MCP server in PolicyLayer and add a rule for health_check: 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 Codebase Contextifier 9000. Nothing to install.
health_check 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 health_check 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 health_check. 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.
health_check is provided by the Codebase Contextifier 9000 MCP server (jarmentor/codebase-contextifier-9000). 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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