crow_browser_extract_text
Extract clean article text from the current page using Mozilla Readability. Strips ads, nav, and boilerplate. Set format=
This record as markdown: /tools/kh0pper-crow/crow-browser-extract-text.md
What crow_browser_extract_text does on Crow
AI agents call crow_browser_extract_text to retrieve information from Crow without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why crow_browser_extract_text is rated Low
This tool reads and extracts data from a webpage in the user's browser context. It performs content parsing and cleaning (removing ads, navigation, boilerplate) but does not modify the page, execute code, delete data, or perform financial transactions. The action is a retrieval operation with no side effects beyond returning processed text to the user.
From the tool's definition Tool name contains 'extract_text' and description states it 'Extract clean article text from the current page' using a readability library. The operation retrieves and parses visible content without modifying or executing external logic.
Attacks that exploit this kind of access
The rule that runs crow_browser_extract_text safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Crow, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For crow_browser_extract_text, this is the rule to start with:
crow_browser_extract_text is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Crow, apply this rule, and every crow_browser_extract_text call is checked against it from then on.
Questions about crow_browser_extract_text
Extract clean article text from the current page using Mozilla Readability. Strips ads, nav, and boilerplate. Set format=. It is categorised as a Read tool in the Crow MCP Server, which means it retrieves data without modifying state.
Register the Crow MCP server in PolicyLayer and add a rule for crow_browser_extract_text: 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 Crow. Nothing to install.
crow_browser_extract_text 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 crow_browser_extract_text 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 crow_browser_extract_text. 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.
crow_browser_extract_text is provided by the Crow MCP server (kh0pper/crow). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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