Returns network requests since loading the page with optional filtering
AI agents call browser_network_requests to retrieve information from Fast Playwright MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only reads and returns already-captured network request data from the browser session. It has no side effects — it does not modify, execute, or delete anything. It's purely a retrieval/query operation on existing browser telemetry.
From the tool's definition Returns network requests since loading the page with optional filtering
Documented attack patterns abuse exactly the kind of access browser_network_requests gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Fast Playwright MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for browser_network_requests:
{
"version": "1",
"default": "deny",
"tools": {
"browser_network_requests": {}
}
}browser_network_requests is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Returns network requests since loading the page with optional filtering. It is categorised as a Read tool in the Fast Playwright MCP MCP Server, which means it retrieves data without modifying state.
Register the Fast Playwright MCP server in PolicyLayer and add a rule for browser_network_requests: 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 Fast Playwright MCP. Nothing to install.
browser_network_requests 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_network_requests 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_network_requests. 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_network_requests is provided by the Fast Playwright MCP server (tontoko/fast-playwright-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 34 Fast Playwright MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
34 Fast Playwright MCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.