List all console messages for the currently selected page since the last navigation.
AI agents call list_console_messages to retrieve information from Chrome DevTools MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool reads and retrieves console log data from a browser page. It does not modify state, execute code, delete data, or trigger financial transactions. The data returned is diagnostic information already generated by the page's execution. Misuse would have minimal impact; the worst case is an AI agent reading console logs it shouldn't, which poses low security risk.
From the tool's definition Tool name and description indicate it 'List all console messages' — a retrieval operation with no side effects. The description confirms it only retrieves data ('list', 'since the last navigation') without modification, deletion, or execution.
Attacks that exploit this kind of access
List all console messages for the currently selected page since the last navigation. It is categorised as a Read tool in the Chrome DevTools MCP MCP Server, which means it retrieves data without modifying state.
Register the Chrome DevTools MCP server in PolicyLayer and add a rule for list_console_messages: 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 Chrome DevTools MCP. Nothing to install.
list_console_messages 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 list_console_messages 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 list_console_messages. 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.
list_console_messages is provided by the Chrome DevTools MCP server (shay5555-gif/chrome-devtools-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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