Browse or search the entity catalog. Use to check if an entity exists before creating one with graph_relate, or to list entities of a given type. For relationship-aware lookups (entity + its neighbors) use graph_query instead. Returns up to
AI agents call graph_entities to retrieve information from Graph-Memory without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
graph_entities retrieves and searches existing entities from the knowledge graph without modifying, deleting, or executing operations. It is a pure data retrieval tool with minimal blast radius if misused by an agent—it can only expose existing stored information.
From the tool's definition Tool description: 'Browse or search the entity catalog' and 'list entities of a given type' — these are query/lookup operations with no side effects.
Attacks that exploit this kind of access
Browse or search the entity catalog. Use to check if an entity exists before creating one with graph_relate, or to list entities of a given type. For relationship-aware lookups (entity + its neighbors) use graph_query instead. Returns up to. It is categorised as a Read tool in the Graph-Memory MCP Server, which means it retrieves data without modifying state.
Register the Graph-Memory MCP server in PolicyLayer and add a rule for graph_entities: 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 Graph-Memory. Nothing to install.
graph_entities 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_entities 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_entities. 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_entities is provided by the Graph-Memory MCP server (stevepridemore/graph-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.
Teams ship this data inside their own products. See what a licence covers →