graph_boost · Graph-Memory MCP: Risk & Policy

WHAT IT DOES

What graph_boost does on Graph-Memory

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

WHY IT NEEDS A POLICY

Why graph_boost needs a policy

The tool modifies existing graph data (boosting/increasing an edge attribute), which is a reversible write operation. It does not delete or execute code. Confidence is moderate because the description is very terse and lacks detail about what 'increase' entails or whether it's reversible.

From the tool's definition "Increase an edge" — modifies edge weight/strength in the knowledge graph

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

graph_boost Rate-limited

graph_boost 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": {
    "graph_boost": {
      "limits": [
        {
          "counter": "graph_boost_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 Graph-Memory, so you can run agents against it safely.

FAQ

Questions about graph_boost

What does the graph_boost tool do? +

Increase an edge. It is categorised as a Write tool in the Graph-Memory MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on graph_boost? +

Register the Graph-Memory MCP server in PolicyLayer and add a rule for graph_boost: 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 Graph-Memory. Nothing to install.

What risk level is graph_boost? +

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

Can I rate-limit graph_boost? +

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

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

graph_boost is provided by the Graph-Memory MCP server (stevepridemore/graph-memory). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.