update_entity

Update an entity in the knowledge graph

SERVERDaniel LightRAG MCP Server SOURCEdesimpkins/daniel-lightrag-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/desimpkins-daniel-lightrag-mcp/update-entity.md

WHAT IT DOES

What update_entity does on Daniel LightRAG MCP Server

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

RISK

Why update_entity is rated Medium

The tool modifies an entity within the knowledge graph, which is a Write operation (creates or modifies data reversibly). The severity is medium because incorrect updates could corrupt or mislead knowledge graph data, but the operation is reversible and does not delete or irreversibly overwrite data. It is not Destructive (no deletion), not Execute (no arbitrary code execution), not Financial, and not Read-only.

From the tool's definition Tool name is 'update_entity' and description states 'Update an entity in the knowledge graph'. Update is a reversible modification operation that changes existing data.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs update_entity 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 update_entity, this is the rule to start with:

update_entity Rate-limited

update_entity 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": {
    "update_entity": {
      "limits": [
        {
          "counter": "update_entity_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT 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 update_entity call is checked against it from then on.

FAQ

Questions about update_entity

What does the update_entity tool do? +

Update an entity in the knowledge graph. It is categorised as a Write tool in the Daniel LightRAG 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 update_entity? +

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

What risk level is update_entity? +

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

Can I rate-limit update_entity? +

Yes. Add a rate_limit block to the update_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.

How do I block update_entity completely? +

Set action: deny in the PolicyLayer policy for update_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.

What MCP server provides update_entity? +

update_entity 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.

KEEP EXPLORING

More on Daniel LightRAG MCP Server, and thousands of servers like it.

This server

All 21 Daniel LightRAG MCP Server tools →

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aroflo_create_or_update_record on AroFlo MCP →team_manager_update_budget on Team Manager MCP → The MCP Attack Database →

Guides

Govern customer-ops agents →Argument validation →Scoped token →