Stop CPU profiling and get profile data (see browser_docs)
AI agents call browser_perf_stop_profile to retrieve information from Browser MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool stops an active CPU profiling session and retrieves the collected profile data. The primary action is reading/retrieving performance data. Stopping profiling has minimal side effects — it ends a monitoring session, which is reversible (profiling can be restarted). The data retrieval is a read operation with low blast radius.
From the tool's definition Stop CPU profiling and get profile data
Attacks that exploit this kind of access
Stop CPU profiling and get profile data (see browser_docs). It is categorised as a Read tool in the Browser MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Browser MCP Server MCP server in PolicyLayer and add a rule for browser_perf_stop_profile: 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 MCP Server. Nothing to install.
browser_perf_stop_profile 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_perf_stop_profile 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_perf_stop_profile. 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_perf_stop_profile is provided by the Browser MCP Server MCP server (madebytokens/browser-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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