Deep discovery of a specific provider/API by name and intent.
AI agents call semantic_discover to retrieve information from Semantic API without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves metadata about APIs and their capabilities. It is a lookup/search function that returns informational data without side effects, state changes, or triggering external operations. The 'discovery' operation is purely informational and read-only in nature.
From the tool's definition Tool performs 'deep discovery' and 'search' of API capabilities, endpoints, and documentation across a provider database.
Attacks that exploit this kind of access
Deep discovery of a specific provider/API by name and intent. It is categorised as a Read tool in the Semantic API MCP Server, which means it retrieves data without modifying state.
Register the Semantic API MCP server in PolicyLayer and add a rule for semantic_discover: 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 Semantic API. Nothing to install.
semantic_discover 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 semantic_discover 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 semantic_discover. 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.
semantic_discover is provided by the Semantic API MCP server (peter-j-thompson/semanticapi-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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