get_console_warn

Get console warning messages

SERVERBrowser SOURCEmcp-server-browser

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/browser/get-console-warn.md

WHAT IT DOES

What get_console_warn does on Browser

AI agents call get_console_warn to retrieve information from Browser without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why get_console_warn is rated Low

This tool retrieves console warning messages from the browser, which is a read-only operation with no side effects. It queries existing data without creating, modifying, executing, or deleting anything. The low severity reflects minimal risk even if misused by an agent—it only exposes developer-level diagnostic information that may already be visible in browser DevTools.

From the tool's definition Tool name 'get_console_warn' and description 'Get console warning messages' indicate retrieval of existing log data with no modification or execution.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_console_warn safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Browser, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get_console_warn, this is the rule to start with:

get_console_warn Allowed

get_console_warn is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

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

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Browser, apply this rule, and every get_console_warn call is checked against it from then on.

FAQ

Questions about get_console_warn

What does the get_console_warn tool do? +

Get console warning messages. It is categorised as a Read tool in the Browser MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_console_warn? +

Register the Browser MCP server in PolicyLayer and add a rule for get_console_warn: 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 Browser. Nothing to install.

What risk level is get_console_warn? +

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

Can I rate-limit get_console_warn? +

Yes. Add a rate_limit block to the get_console_warn 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 get_console_warn completely? +

Set action: deny in the PolicyLayer policy for get_console_warn. 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 get_console_warn? +

get_console_warn is provided by the Browser MCP server (mcp-server-browser). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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