extract_readable
AI agents call extract_readable to retrieve information from MCP Web Tools 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 transforms web page content into readable text format. This is a read-only operation with no side effects—it does not modify, delete, execute code, or perform financial transactions. The empty description lowers confidence slightly, but the sibling context and server purpose make the classification clear.
From the tool's definition Tool name 'extract_readable' and server description indicate text extraction from web pages with no modification, deletion, or execution capability. Server explicitly provides 'extracting readable text from web pages' as a core function.
Attacks that exploit this kind of access
extract_readable. It is categorised as a Read tool in the MCP Web Tools Server MCP Server, which means it retrieves data without modifying state.
Register the MCP Web Tools Server MCP server in PolicyLayer and add a rule for extract_readable: 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 Web Tools Server. Nothing to install.
extract_readable 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_readable 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_readable. 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_readable is provided by the MCP Web Tools Server MCP server (joaopedrolanca/mcp-web-tools). 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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