create_relations · Codebase Knowledge Graph MCP Server MCP

WHAT IT DOES

What create_relations does on Codebase Knowledge Graph MCP Server

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

WHY IT NEEDS A POLICY

Why create_relations needs a policy

This tool adds new relationships between code entities in a graph structure. Creating relations is a write operation that modifies the graph's state but is fully reversible (relations can be deleted via delete_relations). There is no code execution, data destruction, or financial impact.

From the tool's definition Tool is named 'create_relations' and described as 'Create multiple new relations between existing entities.' The verb 'Create' indicates reversible modification of data (relationships/edges in the knowledge graph), not deletion or execution of external code.

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 Codebase Knowledge Graph MCP 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 existing entities. It is categorised as a Write tool in the Codebase Knowledge Graph MCP 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 Codebase Knowledge Graph MCP 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 Codebase Knowledge Graph MCP 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 Codebase Knowledge Graph MCP Server MCP server (jigneshsuvariya/codenexus-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.