list_console_messages

THE RISK

Low Risk

Why list_console_messages needs a policy

This tool retrieves historical console output data from the browser's debugging interface. It performs a query operation on already-captured logging data without modifying state, triggering code execution, or affecting system resources. The blast radius of misuse is minimal—an agent could only read what has already been logged, which is informational data. This fits cleanly into the Read category.

From the tool's definition Tool name is 'list_console_messages' and description states it 'List[s] all console messages' — a retrieval operation with no modification or side effects.

Documented attack patterns abuse exactly the kind of access list_console_messages gives an agent:

POLICY

How to control list_console_messages

PolicyLayer is an MCP gateway — it sits between your AI agents and ReverseCraft DevTools MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for list_console_messages:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_console_messages": {}
  }
}

list_console_messages is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register ReverseCraft DevTools MCP — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

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All 46 ReverseCraft DevTools MCP tools →

Read tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about list_console_messages

What does the list_console_messages tool do? +

List all console messages for the currently selected page since the last navigation. It is categorised as a Read tool in the ReverseCraft DevTools MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_console_messages? +

Register the ReverseCraft 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 ReverseCraft DevTools MCP. Nothing to install.

What risk level is list_console_messages? +

list_console_messages is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_console_messages? +

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.

How do I block list_console_messages completely? +

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.

What MCP server provides list_console_messages? +

list_console_messages is provided by the ReverseCraft DevTools MCP server (reverse-craft/rc-devtools-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every ReverseCraft DevTools MCP tool call.

Start from ReverseCraft DevTools MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →