extract_first
AI agents call extract_first to retrieve information from Mcp Webscraper without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The name and server context indicate this tool retrieves or extracts data from web sources without modifying or deleting anything. Web scraping and data extraction are Read operations. Confidence is moderate (0.7) rather than high because the tool description is empty, leaving some ambiguity about its exact behavior, though the naming pattern and server purpose strongly suggest passive data retrieval.
From the tool's definition Tool name 'extract_first' combined with server description mentioning 'extracting structured data' and 'scrape' operations suggests data retrieval without modification. No description provided for the specific tool.
Attacks that exploit this kind of access
extract_first. It is categorised as a Read tool in the Mcp Webscraper MCP Server, which means it retrieves data without modifying state.
Register the Mcp Webscraper MCP server in PolicyLayer and add a rule for extract_first: 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 Mcp Webscraper. Nothing to install.
extract_first 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 extract_first 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 extract_first. 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.
extract_first is provided by the Mcp Webscraper MCP server (samirsaci/mcp-webscraper). 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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