List all console messages for the currently selected page since the last navigation. Pass msgid to get a single message by its ID.
AI agents call list_console_messages 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 is a pure read operation that queries existing console message data from a page's runtime state. It has no side effects, does not modify data, execute code, delete data, or involve financial operations.
From the tool's definition Tool lists console messages and retrieves individual messages by ID. The description explicitly uses 'List' and 'get' operations with no modification or execution capability.
Attacks that exploit this kind of access
List all console messages for the currently selected page since the last navigation. Pass msgid to get a single message by its ID. 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 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 JS Reverse 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 JS Reverse MCP server (zhizhuodemao/js-reverse-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.