browser_stop_tracing

What browser_stop_tracing does on Playwright MCP

AI agents invoke browser_stop_tracing to trigger actions in Playwright MCP. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

Why browser_stop_tracing is rated High

This tool stops an active browser trace, which is an operational control action (Execute category). It modifies the state of browser instrumentation/monitoring but does not delete data or move money. Confidence is moderate (0.75) because the description is empty; however, context from the server description (browser automation) and sibling tools strongly suggests this performs a browser control operation.

From the tool's definition Tool name 'browser_stop_tracing' indicates control of browser tracing/recording operations. No description provided, but sibling tools include browser_click, browser_drag, browser_evaluate, and browser_console_messages, all of which are browser automation…

The rule that runs browser_stop_tracing safely

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

{
  "version": "1",
  "default": "deny",
  "tools": {
    "browser_stop_tracing": {
      "limits": [
        {
          "counter": "browser_stop_tracing_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

Questions about browser_stop_tracing