compress_graph

Compress the graph by merging similar entities

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/compress-graph.md

WHAT IT DOES

What compress_graph does on Enhanced Knowledge Graph Memory Server

AI agents use compress_graph 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 compress_graph is rated Medium

Merging similar entities modifies the knowledge graph by combining nodes, which is a reversible write/update operation in principle. However, merging entities can result in data loss (e.g., nuanced distinctions between entities being collapsed), making it borderline destructive.

From the tool's definition Compress the graph by merging similar entities

Attacks that exploit this kind of access

RECOMMENDED RULE

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

compress_graph Rate-limited

compress_graph 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": {
    "compress_graph": {
      "limits": [
        {
          "counter": "compress_graph_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 compress_graph call is checked against it from then on.

FAQ

Questions about compress_graph

What does the compress_graph tool do? +

Compress the graph by merging similar entities. 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 compress_graph? +

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

What risk level is compress_graph? +

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

Can I rate-limit compress_graph? +

Yes. Add a rate_limit block to the compress_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 compress_graph completely? +

Set action: deny in the PolicyLayer policy for compress_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 compress_graph? +

compress_graph 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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