Extract structured data or text from the current page using an instruction.
AI agents call browserbase_stagehand_extract to retrieve information from Browserbase MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool retrieves and extracts data from a webpage without creating, modifying, or deleting anything. While it operates in a browser automation context, extraction alone is a read operation. Severity is low because extraction cannot cause harm to external systems or data; it only retrieves information visible to the session.
From the tool's definition Tool explicitly performs 'extract structured data or text from the current page' with no mention of modification, deletion, or execution of external operations. This is a query/retrieval operation.
Attacks that exploit this kind of access
Extract structured data or text from the current page using an instruction. It is categorised as a Read tool in the Browserbase MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Browserbase MCP Server MCP server in PolicyLayer and add a rule for browserbase_stagehand_extract: 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 Browserbase MCP Server. Nothing to install.
browserbase_stagehand_extract 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 browserbase_stagehand_extract 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 browserbase_stagehand_extract. 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.
browserbase_stagehand_extract is provided by the Browserbase MCP Server MCP server (mesuterpikin/mcp-server-browserbase). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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