semantic_search
AI agents call semantic_search to retrieve information from MidOS - MCP Community Library without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Semantic search performs information retrieval against a knowledge base without modifying, executing, or destroying data. The confidence is reduced from 0.85 to 0.75 due to the empty description, which prevents confirmation of the exact scope and whether any side effects exist. However, the naming convention and context strongly suggest this is a standard read operation.
From the tool's definition Tool name 'semantic_search' indicates a search operation, which is a read-only retrieval function. The tool shares a server with other curated knowledge API tools like 'episodic_search' and 'get_skill', all of which appear to be retrieval operations.
Attacks that exploit this kind of access
semantic_search. It is categorised as a Read tool in the MidOS - MCP Community Library MCP Server, which means it retrieves data without modifying state.
Register the MidOS - MCP Community Library MCP server in PolicyLayer and add a rule for semantic_search: 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 MidOS - MCP Community Library. Nothing to install.
semantic_search 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_search 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_search. 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_search is provided by the MidOS - MCP Community Library MCP server (midos-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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