Search the domain-memory knowledge store using semantic + keyword + path/symbol matchers. Returns ranked candidates. Call before writing to avoid duplicates.
AI agents call search_knowledge to retrieve information from Domain memory without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries a knowledge store and returns search results without creating, modifying, deleting, or executing any operations. It is a pure read operation with no side effects. The instruction to 'call before writing to avoid duplicates' further confirms it is used for inspection/discovery only.
From the tool's definition Tool description states 'Search the domain-memory knowledge store' and 'Returns ranked candidates.' The verb 'search' and the explicit return of read-only results with no mention of modification or side effects indicate this is a retrieval operation.
Attacks that exploit this kind of access
Search the domain-memory knowledge store using semantic + keyword + path/symbol matchers. Returns ranked candidates. Call before writing to avoid duplicates. It is categorised as a Read tool in the Domain memory MCP Server, which means it retrieves data without modifying state.
Register the Domain memory MCP server in PolicyLayer and add a rule for search_knowledge: 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 Domain memory. Nothing to install.
search_knowledge 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 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. 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 is provided by the Domain memory MCP server (mashware/domain-memory). 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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