Get the current navigation state from the React Native app (requires mcp-rn-devtools-sdk with a navigationRef).
AI agents call get_navigation_state 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.
This tool retrieves the current navigation state from a React Native app for debugging purposes. It performs no mutations, deletions, or side effects—it only queries and returns existing state information. The blast radius of misuse is minimal: an attacker could only inspect the app's navigation history or current screen, not modify behavior or access sensitive systems.
From the tool's definition Tool name 'get_navigation_state' with description 'Get the current navigation state' indicates data retrieval without modification. The verb 'get' and lack of any modifying operations confirm read-only access.
Attacks that exploit this kind of access
Get the current navigation state from the React Native app (requires mcp-rn-devtools-sdk with a navigationRef). 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 get_navigation_state: 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.
get_navigation_state 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 get_navigation_state 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 get_navigation_state. 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.
get_navigation_state 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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