Deeply inspects a JavaScript object, showing its properties, prototype chain, and methods. Useful for understanding object structure.
AI agents call inspect_object 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.
This tool retrieves and displays metadata about JavaScript objects (properties, prototype chain, methods) without modifying state, executing code, or affecting external systems. It is a pure introspection/querying operation with minimal blast radius if misused—the worst case being information disclosure about object internals. Therefore, it classifies as Read with low severity.
From the tool's definition Tool performs 'deeply inspects a JavaScript object, showing its properties, prototype chain, and methods' with no indication of modification, deletion, or execution of external operations. The verbs are 'inspects' and 'showing', which are read-only operations.
Attacks that exploit this kind of access
Deeply inspects a JavaScript object, showing its properties, prototype chain, and methods. Useful for understanding object structure. 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 inspect_object: 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.
inspect_object 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 inspect_object 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 inspect_object. 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.
inspect_object 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.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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