Get detailed information about an exception (DAP standard)
AI agents call exceptionInfo to retrieve information from MCP Chrome Debugger Protocol without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves exception metadata from a running debugging session without modifying state, executing code, or triggering external operations. While it operates within a Node.js debugging context (controlled via CDP/DAP), it is purely informational and carries minimal risk of misuse by an AI agent.
From the tool's definition The tool is described as 'Get detailed information about an exception' with no parameters or side effects mentioned.
Attacks that exploit this kind of access
Get detailed information about an exception (DAP standard). It is categorised as a Read tool in the MCP Chrome Debugger Protocol MCP Server, which means it retrieves data without modifying state.
Register the MCP Chrome Debugger Protocol MCP server in PolicyLayer and add a rule for exceptionInfo: 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 Chrome Debugger Protocol. Nothing to install.
exceptionInfo 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 exceptionInfo 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 exceptionInfo. 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.
exceptionInfo is provided by the MCP Chrome Debugger Protocol MCP server (vitalyostanin/mcp-chrome-debugger-protocol). 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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