Retrieve entity by ID with complete details. WHEN: You need the full entity information for a specific entity. Common after listing entities or when a memory references an entity ID. BEHAVIOR: Returns complete entity including notes and metadata. Ownership verified automatically. NOT-USE: For bro...
AI agents call get_entity to retrieve information from Forgetful without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a straightforward data retrieval function that queries and returns entity information by ID. It has no side effects, does not modify data, and does not execute code or commands. The explicit note 'NOT-USE: For browsing multiple entities (use list_entities)' further confirms it is purely a read operation. Ownership verification is a security check, not a destructive or write action.
From the tool's definition Tool description states 'Retrieve entity by ID with complete details' and 'Returns complete Entity with name, type, notes, tags, timestamps'. The tool performs a query/retrieval operation with no modification, deletion, or execution capability.
Documented attack patterns abuse exactly the kind of access get_entity gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Forgetful, and nothing reaches the server without passing your rules. This is the rule we recommend for get_entity:
{
"version": "1",
"default": "deny",
"tools": {
"get_entity": {}
}
}get_entity is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Retrieve entity by ID with complete details. WHEN: You need the full entity information for a specific entity. Common after listing entities or when a memory references an entity ID. BEHAVIOR: Returns complete entity including notes and metadata. Ownership verified automatically. NOT-USE: For browsing multiple entities (use list_entities). Args: entity_id: Unique entity ID ctx: Context (automatically injected) Returns: Complete Entity with name, type, notes, tags, timestamps Raises: ToolError: If entity not found or not owned by user. It is categorised as a Read tool in the Forgetful MCP Server, which means it retrieves data without modifying state.
Register the Forgetful MCP server in PolicyLayer and add a rule for get_entity: 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 Forgetful. Nothing to install.
get_entity 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 get_entity 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 get_entity. 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.
get_entity is provided by the Forgetful MCP server (scottrbk/forgetful). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 59 Forgetful tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
59 Forgetful tools catalogued and risk-classified — across an index of 42,500+ MCP servers.