Search across all knowledge topics by keyword. Matches against tags, entry titles, and content. Tag matches rank first.
AI agents call searchKnowledge to retrieve information from Knowledge MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries data from a markdown-based knowledge base with no side effects. It matches the Read category pattern of search/query operations that return information without altering state. The low severity reflects that misuse would only expose existing knowledge the user has already created, with no ability to modify, delete, or execute actions.
From the tool's definition Tool performs search and retrieval operations: 'Search across all knowledge topics by keyword' with matching against tags, entry titles, and content. No modification, deletion, or execution of external operations described.
Attacks that exploit this kind of access
Search across all knowledge topics by keyword. Matches against tags, entry titles, and content. Tag matches rank first. It is categorised as a Read tool in the Knowledge MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Knowledge MCP Server MCP server in PolicyLayer and add a rule for searchKnowledge: 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 Knowledge MCP Server. Nothing to install.
searchKnowledge 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 searchKnowledge 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 searchKnowledge. 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.
searchKnowledge is provided by the Knowledge MCP Server MCP server (vuluu2k/knowledge_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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