Check the connection status and get a summary of the React Native app state: connection status, error/warning/request counts, and recent errors.
AI agents call health_check to retrieve information from Mcp Rn Devtools without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
health_check retrieves diagnostic information about the running React Native app without performing any modifications, executions, or destructive operations. It returns read-only status and summary data. Classification as Read is appropriate, with low severity since obtaining app state telemetry poses minimal risk even if misused by an AI agent.
From the tool's definition Tool performs state inspection and querying: 'Check the connection status and get a summary', 'connection status, error/warning/request counts, and recent errors.' These are retrieval operations with no side effects or data modifications.
Attacks that exploit this kind of access
Check the connection status and get a summary of the React Native app state: connection status, error/warning/request counts, and recent errors. It is categorised as a Read tool in the Mcp Rn Devtools MCP Server, which means it retrieves data without modifying state.
Register the Mcp Rn Devtools 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 Mcp Rn Devtools. 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 Mcp Rn Devtools MCP server (pablonortiz/mcp-rn-devtools). 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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