refresh_entity

Reset freshness for an entity by updating its creation timestamp to now and resetting confidence to 1.0

SERVEREnhanced Knowledge Graph Memory Server SOURCEdanielsimonjr/memory-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/danielsimonjr-memory-mcp/refresh-entity.md

WHAT IT DOES

What refresh_entity does on Enhanced Knowledge Graph Memory Server

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

RISK

Why refresh_entity is rated Medium

This tool modifies existing entity data (timestamp and confidence fields) in the knowledge graph. It is a reversible write operation — it updates metadata rather than deleting or executing code. Misuse could corrupt temporal ordering or confidence scores across the knowledge graph, hence medium severity.

From the tool's definition Reset freshness for an entity by updating its creation timestamp to now and resetting confidence to 1.0

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs refresh_entity safely

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

refresh_entity Rate-limited

refresh_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": {
    "refresh_entity": {
      "limits": [
        {
          "counter": "refresh_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 Enhanced Knowledge Graph Memory Server, apply this rule, and every refresh_entity call is checked against it from then on.

FAQ

Questions about refresh_entity

What does the refresh_entity tool do? +

Reset freshness for an entity by updating its creation timestamp to now and resetting confidence to 1.0. It is categorised as a Write tool in the Enhanced 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 refresh_entity? +

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

What risk level is refresh_entity? +

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

Can I rate-limit refresh_entity? +

Yes. Add a rate_limit block to the refresh_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 refresh_entity completely? +

Set action: deny in the PolicyLayer policy for refresh_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 refresh_entity? +

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

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