Gets the JavaScript call stack that initiated a network request. This helps trace which code triggered an API call.
AI agents call get_request_initiator to retrieve information from JS Reverse MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool queries and returns debugging/tracing information (call stack traces) without modifying state, executing code, or triggering external actions. While it operates within a reverse engineering context, the specific function is introspection and data collection, squarely in the Read category.
From the tool's definition Tool retrieves call stack information from a network request—'Gets the JavaScript call stack that initiated a network request.' This is data retrieval with no side effects.
Attacks that exploit this kind of access
Gets the JavaScript call stack that initiated a network request. This helps trace which code triggered an API call. It is categorised as a Read tool in the JS Reverse MCP MCP Server, which means it retrieves data without modifying state.
Register the JS Reverse MCP server in PolicyLayer and add a rule for get_request_initiator: 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 JS Reverse MCP. Nothing to install.
get_request_initiator 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_request_initiator 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_request_initiator. 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_request_initiator is provided by the JS Reverse MCP server (noone-hub/jsreverser-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.
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