kdbai_hybrid_search
AI agents call kdbai_hybrid_search to retrieve information from KDB AI MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Hybrid search in vector databases typically combines multiple search methods (e.g., semantic and keyword search) to retrieve and rank results. This is a retrieval operation with no side effects. However, confidence is reduced from 0.85 to 0.75 because the tool description is empty, leaving ambiguity about whether it might support filtering, aggregation, or other operations that could approach Execute severity.
From the tool's definition Tool name 'kdbai_hybrid_search' combined with server description stating 'hybrid search' as a capability. The sibling tool 'kdbai_similarity_search' and overall context of 'vector database operations' indicate query/retrieval functionality without data…
Attacks that exploit this kind of access
kdbai_hybrid_search. It is categorised as a Read tool in the KDB AI MCP Server MCP Server, which means it retrieves data without modifying state.
Register the KDB AI MCP Server MCP server in PolicyLayer and add a rule for kdbai_hybrid_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 KDB AI MCP Server. Nothing to install.
kdbai_hybrid_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 kdbai_hybrid_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 kdbai_hybrid_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.
kdbai_hybrid_search is provided by the KDB AI MCP Server MCP server (kxsystems/kdbai-mcp-server). 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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