Search for entities in the knowledge graph. Use when you need to find people, organizations, places, or things mentioned across memories. Useful before traversing relationships or querying the graph.
AI agents call graph_search to retrieve information from Memsolus MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs semantic search and entity lookup operations over stored memories and knowledge graph data. It retrieves information without creating, modifying, or deleting any data. The stated use case—finding entities before traversing relationships—confirms it is a read-only query operation. No side effects or state changes are indicated.
From the tool's definition Tool description states 'Search for entities in the knowledge graph' and 'find people, organizations, places, or things mentioned across memories.' The verb 'search' and 'find' indicate retrieval operations with no modification or deletion of data.
Attacks that exploit this kind of access
Search for entities in the knowledge graph. Use when you need to find people, organizations, places, or things mentioned across memories. Useful before traversing relationships or querying the graph. It is categorised as a Read tool in the Memsolus MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Memsolus MCP Server MCP server in PolicyLayer and add a rule for graph_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 Memsolus MCP Server. Nothing to install.
graph_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 graph_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 graph_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.
graph_search is provided by the Memsolus MCP Server MCP server (memsolus/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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