AI agents call browser_get_config to retrieve information from Playwright without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool appears to retrieve browser configuration state without modifying it or triggering external actions. While the empty description introduces some uncertainty, the naming pattern and context within a browser automation suite suggest it queries existing configuration rather than executes commands or modifies state. Classified as Read with medium-high confidence due to the descriptive gap.
From the tool's definition Tool name 'browser_get_config' indicates retrieval of configuration data. The empty description limits certainty, but the 'get' prefix and naming convention among Playwright browser tools suggest a read-only query operation.
Documented attack patterns abuse exactly the kind of access browser_get_config gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Playwright, and nothing reaches the server without passing your rules. This is the rule we recommend for browser_get_config:
{
"version": "1",
"default": "deny",
"tools": {
"browser_get_config": {}
}
}browser_get_config is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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browser_get_config. It is categorised as a Read tool in the Playwright MCP Server, which means it retrieves data without modifying state.
Register the Playwright MCP server in PolicyLayer and add a rule for browser_get_config: 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. Nothing to install.
browser_get_config 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_get_config 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_get_config. 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_get_config is provided by the Playwright MCP server (@playwright/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Playwright, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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68 Playwright tools catalogued and risk-classified — across an index of 43,000+ MCP servers.