Discover all pages on a website via sitemap parsing and/or link crawling. Returns a prioritized list of URLs for scanning. No API key needed.
AI agents call discover_pages to retrieve information from aria51 MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only gathers and returns data about website structure and available pages. It does not execute code, modify data, delete resources, or commit financial transactions. The discovery mechanism (sitemap parsing and crawling) are standard information retrieval operations.
From the tool's definition The tool 'discover_pages' performs sitemap parsing and link crawling to return a prioritized list of URLs. These are passive discovery operations that retrieve information without modifying, executing, or deleting any data.
Attacks that exploit this kind of access
Discover all pages on a website via sitemap parsing and/or link crawling. Returns a prioritized list of URLs for scanning. No API key needed. It is categorised as a Read tool in the aria51 MCP Server MCP Server, which means it retrieves data without modifying state.
Register the aria51 MCP Server MCP server in PolicyLayer and add a rule for discover_pages: 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 aria51 MCP Server. Nothing to install.
discover_pages 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 discover_pages 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 discover_pages. 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.
discover_pages is provided by the aria51 MCP Server MCP server (justinleeirizarry/aria51). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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