A generic tool which takes any observable and passes it the correct tool.
AI agents call lookup-observable to retrieve information from Enrichment MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a read-only operation that queries third-party threat intelligence services to gather information about observables (IPs, domains, URLs, emails). It retrieves and returns data with no side effects. The generic dispatcher nature of the tool does not change its fundamental Read category—it simply routes to the appropriate lookup function. No data is created, modified, deleted, or executed.
From the tool's definition The tool performs 'threat intelligence enrichment for various observables' and 'lookup' operations against external services like VirusTotal, Shodan, and AbuseIPDB.
Attacks that exploit this kind of access
A generic tool which takes any observable and passes it the correct tool. It is categorised as a Read tool in the Enrichment MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Enrichment MCP Server MCP server in PolicyLayer and add a rule for lookup-observable: 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 Enrichment MCP Server. Nothing to install.
lookup-observable 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 lookup-observable 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 lookup-observable. 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.
lookup-observable is provided by the Enrichment MCP Server MCP server (synackpwn/enrichment-mcp). 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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