search_knowledge_base
AI agents call search_knowledge_base to retrieve information from Ultimate-MCP-Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The name strongly suggests reading or querying data from a knowledge base without modification. The lack of a description prevents higher confidence, but the naming pattern aligns with typical Read operations (search, query, retrieve). No evidence of side effects, data modification, code execution, deletion, or financial operations.
From the tool's definition Tool name 'search_knowledge_base' indicates a query/retrieval operation. Description is empty, limiting confidence.
Attacks that exploit this kind of access
search_knowledge_base. It is categorised as a Read tool in the Ultimate-MCP-Server MCP Server, which means it retrieves data without modifying state.
Register the Ultimate-MCP-Server MCP server in PolicyLayer and add a rule for search_knowledge_base: 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 Ultimate-MCP-Server. Nothing to install.
search_knowledge_base 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 search_knowledge_base 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 search_knowledge_base. 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.
search_knowledge_base is provided by the Ultimate-MCP-Server MCP server (logos-parthenos-ai/ultimate_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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