get_knowledge_graph

Retrieve the knowledge graph from LightRAG

SERVERDaniel LightRAG MCP Server SOURCEdesimpkins/daniel-lightrag-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/desimpkins-daniel-lightrag-mcp/get-knowledge-graph.md

WHAT IT DOES

What get_knowledge_graph does on Daniel LightRAG MCP Server

AI agents call get_knowledge_graph to retrieve information from Daniel LightRAG MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why get_knowledge_graph is rated Low

This tool fetches/retrieves data (a knowledge graph) from the system without creating, modifying, deleting, or executing any operations. It has read-only semantics and no side effects. The sibling tools include destructive operations (delete_document, delete_entity, delete_relation) and write operations, but this tool is clearly a read operation.

From the tool's definition Tool name 'get_knowledge_graph' and description 'Retrieve the knowledge graph from LightRAG' clearly indicate a retrieval operation with no modifications. The verb 'Retrieve' is a standard read operation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_knowledge_graph safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Daniel LightRAG MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get_knowledge_graph, this is the rule to start with:

get_knowledge_graph Allowed

get_knowledge_graph is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_knowledge_graph": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Daniel LightRAG MCP Server, apply this rule, and every get_knowledge_graph call is checked against it from then on.

FAQ

Questions about get_knowledge_graph

What does the get_knowledge_graph tool do? +

Retrieve the knowledge graph from LightRAG. It is categorised as a Read tool in the Daniel LightRAG MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_knowledge_graph? +

Register the Daniel LightRAG MCP Server MCP server in PolicyLayer and add a rule for get_knowledge_graph: 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 Daniel LightRAG MCP Server. Nothing to install.

What risk level is get_knowledge_graph? +

get_knowledge_graph is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_knowledge_graph? +

Yes. Add a rate_limit block to the get_knowledge_graph 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 get_knowledge_graph completely? +

Set action: deny in the PolicyLayer policy for get_knowledge_graph. 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 get_knowledge_graph? +

get_knowledge_graph is provided by the Daniel LightRAG MCP Server MCP server (desimpkins/daniel-lightrag-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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