Returns all console messages
AI agents call browser_console_messages to retrieve information from Playwright MCP with Electron Support without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only retrieves and returns existing console messages from the browser/application. It has no side effects, does not modify any state, and cannot be misused to cause harm beyond reading potentially sensitive log output.
From the tool's definition Returns all console messages
Documented attack patterns abuse exactly the kind of access browser_console_messages gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Playwright MCP with Electron Support, and nothing reaches the server without passing your rules. This is the rule we recommend for browser_console_messages:
{
"version": "1",
"default": "deny",
"tools": {
"browser_console_messages": {}
}
}browser_console_messages is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Returns all console messages. It is categorised as a Read tool in the Playwright MCP with Electron Support MCP Server, which means it retrieves data without modifying state.
Register the Playwright MCP with Electron Support MCP server in PolicyLayer and add a rule for browser_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 Playwright MCP with Electron Support. Nothing to install.
browser_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 browser_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 browser_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.
browser_console_messages is provided by the Playwright MCP with Electron Support MCP server (robertn702/playwright-mcp-electron). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Playwright MCP with Electron Support, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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34 Playwright MCP with Electron Support tools catalogued and risk-classified — across an index of 43,000+ MCP servers.