create_relations · Knowledge Graph Memory Server MCP

WHAT IT DOES

What create_relations does on Knowledge Graph Memory Server

AI agents use create_relations to create or update resources in Knowledge Graph Memory Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Knowledge Graph Memory Server environment.

WHY IT NEEDS A POLICY

Why create_relations needs a policy

This tool creates new relational data in a knowledge graph, which is a reversible modification operation. It does not execute arbitrary code, delete data irreversibly, move money, or merely read existing data.

From the tool's definition Tool description states 'Create multiple new relations between entities in the knowledge graph.' The verb 'Create' and the action of establishing new relations indicates data modification without permanent deletion.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_relations Rate-limited

create_relations stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_relations": {
      "limits": [
        {
          "counter": "create_relations_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Knowledge Graph Memory Server, so you can run agents against it safely.

FAQ

Questions about create_relations

What does the create_relations tool do? +

Create multiple new relations between entities in the knowledge graph. Relations should be in active voice. It is categorised as a Write tool in the Knowledge Graph Memory Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_relations? +

Register the Knowledge Graph Memory Server MCP server in PolicyLayer and add a rule for create_relations: 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 Knowledge Graph Memory Server. Nothing to install.

What risk level is create_relations? +

create_relations is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit create_relations? +

Yes. Add a rate_limit block to the create_relations 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.

How do I block create_relations completely? +

Set action: deny in the PolicyLayer policy for create_relations. 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.

What MCP server provides create_relations? +

create_relations is provided by the Knowledge Graph Memory Server MCP server (rmranjit/mcp-memory). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.