检查后端服务健康状态
AI agents call check_health_tool to retrieve information from Memory MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Health checks are non-destructive read operations that query the current state of a service. They have no side effects, cannot modify data, and pose minimal risk if misused by an AI agent. The worst outcome is receiving inaccurate status information.
From the tool's definition Tool name 'check_health_tool' and description '检查后端服务健康状态' (check backend service health status) indicates a query operation that retrieves health/status information without modifying or executing any operations.
Attacks that exploit this kind of access
检查后端服务健康状态. It is categorised as a Read tool in the Memory MCP MCP Server, which means it retrieves data without modifying state.
Register the Memory MCP server in PolicyLayer and add a rule for check_health_tool: 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 Memory MCP. Nothing to install.
check_health_tool 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_health_tool 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_health_tool. 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_health_tool is provided by the Memory MCP server (jerryzhongj/memory-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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