get_concept
Look up a concept by its exact ID. Returns the concept with its full context including children, edges, incoming edges, and parent. Unlike
This record as markdown: /tools/0xk3vin-megamemory/get-concept.md
What get_concept does on MegaMemory
AI agents call get_concept to retrieve information from MegaMemory without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why get_concept is rated Low
This tool retrieves and queries data from a knowledge graph without modifying, deleting, or executing code. It is a straightforward read operation that returns concept information. The only potential concern is that retrieved knowledge graph data could theoretically be sensitive, but the tool itself performs no mutations and has minimal blast radius if misused by an agent.
From the tool's definition Tool name 'get_concept' and description 'Look up a concept by its exact ID. Returns the concept with its full context' indicates a retrieval operation with no side effects.
Attacks that exploit this kind of access
The rule that runs get_concept safely
PolicyLayer is an MCP gateway: it sits between your AI agents and MegaMemory, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get_concept, this is the rule to start with:
get_concept is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect MegaMemory, apply this rule, and every get_concept call is checked against it from then on.
Questions about get_concept
Look up a concept by its exact ID. Returns the concept with its full context including children, edges, incoming edges, and parent. Unlike. It is categorised as a Read tool in the MegaMemory MCP Server, which means it retrieves data without modifying state.
Register the MegaMemory MCP server in PolicyLayer and add a rule for get_concept: 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 MegaMemory. Nothing to install.
get_concept 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_concept 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_concept. 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_concept is provided by the MegaMemory MCP server (0xk3vin/megamemory). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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