semantic_query
AI agents call semantic_query 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 appears to query or search through a database of API capabilities and metadata. The core operation is retrieving information about available APIs, their endpoints, and authentication setup—classic Read operations with no side effects. No data is created, modified, deleted, or financial operations are involved.
From the tool's definition Tool name 'semantic_query' combined with server description indicating 'search 700+ API capabilities' and 'get exact endpoints' suggests information retrieval.
Attacks that exploit this kind of access
semantic_query. 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_query: 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_query 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_query 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_query. 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_query 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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