extract_url
Any web URL -> clean LLM-ready markdown (title + main content, boilerplate stripped). The retrieval/RAG primitive for ag Cost: $0.005–$0.05 USDC on Base per call.
This record as markdown: /tools/com-gocreativeai-enrich-prism/extract-url.md
What extract_url does on Prism — Data Enrichment for AI Agents
AI agents call extract_url to retrieve information from Prism — Data Enrichment for AI Agents without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
arg | string | Yes |
Parameters from the server's own tool schema.
Why extract_url is rated Low
extract_url is a read-only operation that retrieves and parses web content without side effects. While it incurs a cost, this is a characteristic of the Prism server's pay-per-call model, not a financial transaction by the tool itself—no money moves from an agent's account.
From the tool's definition Tool description explicitly states it transforms URLs into 'clean LLM-ready markdown' with 'boilerplate stripped'. The core function is retrieval and content extraction: 'The retrieval/RAG primitive'.
Attacks that exploit this kind of access
The rule that runs extract_url safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Prism — Data Enrichment for AI Agents, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For extract_url, this is the rule to start with:
extract_url 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 Prism — Data Enrichment for AI Agents, apply this rule, and every extract_url call is checked against it from then on.
Questions about extract_url
Any web URL -> clean LLM-ready markdown (title + main content, boilerplate stripped). The retrieval/RAG primitive for ag Cost: $0.005–$0.05 USDC on Base per call. It is categorised as a Read tool in the Prism — Data Enrichment for AI Agents MCP Server, which means it retrieves data without modifying state.
extract_url accepts 1 parameter: arg. Required: arg. The full parameter table on this page comes from the server's own tool schema.
Register the Prism — Data Enrichment for AI Agents MCP server in PolicyLayer and add a rule for extract_url: 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 Prism — Data Enrichment for AI Agents. Nothing to install.
extract_url 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_url 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_url. 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_url is provided by the Prism — Data Enrichment for AI Agents MCP server (https://enrich.gocreativeai.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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