enrich_notes · Graph Rag Obsidian MCP: Risk & Policy

WHAT IT DOES

What enrich_notes does on Graph Rag Obsidian

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

WHY IT NEEDS A POLICY

Why enrich_notes needs a policy

The name 'enrich_notes' implies adding or updating metadata/content to existing notes (a Write operation), consistent with sibling tools like 'enrich_base_with_graph' and 'add_content_to_note'. However, with an empty description, confidence is low. Severity is medium because enriching notes could overwrite or alter existing content in the Obsidian vault.

From the tool's definition Tool name 'enrich_notes' suggests modifying or augmenting notes with additional data, but the description is empty and uninformative.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

enrich_notes Rate-limited

enrich_notes 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": {
    "enrich_notes": {
      "limits": [
        {
          "counter": "enrich_notes_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 Rag Obsidian, so you can run agents against it safely.

FAQ

Questions about enrich_notes

What does the enrich_notes tool do? +

enrich_notes. It is categorised as a Write tool in the Graph Rag Obsidian MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on enrich_notes? +

Register the Graph Rag Obsidian MCP server in PolicyLayer and add a rule for enrich_notes: 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 Rag Obsidian. Nothing to install.

What risk level is enrich_notes? +

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

Can I rate-limit enrich_notes? +

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

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

enrich_notes is provided by the Graph Rag Obsidian MCP server (nickshffer/graph-rag-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.