create_obsidian_note · Obsidian MCP Server MCP

WHAT IT DOES

What create_obsidian_note does on Obsidian MCP Server

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

WHY IT NEEDS A POLICY

Why create_obsidian_note needs a policy

The tool creates new data (notes) in Obsidian vaults, which is a Write-category action. Severity is medium because note creation can clutter vaults and create unwanted entries, but the effect is reversible via deletion. Confidence is high (0.9) based on the unambiguous tool name, despite the empty description.

From the tool's definition Tool name is 'create_obsidian_note' which explicitly creates new notes in Obsidian vaults. The sibling tools include destructive operations (delete_obsidian_note, delete_section_obsidian_note), confirming this server manages vault content.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_obsidian_note Rate-limited

create_obsidian_note 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": {
    "create_obsidian_note": {
      "limits": [
        {
          "counter": "create_obsidian_note_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 Obsidian MCP Server, so you can run agents against it safely.

FAQ

Questions about create_obsidian_note

What does the create_obsidian_note tool do? +

create_obsidian_note. It is categorised as a Write tool in the Obsidian 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 create_obsidian_note? +

Register the Obsidian MCP Server MCP server in PolicyLayer and add a rule for create_obsidian_note: 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 Obsidian MCP Server. Nothing to install.

What risk level is create_obsidian_note? +

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

Can I rate-limit create_obsidian_note? +

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

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

create_obsidian_note is provided by the Obsidian MCP Server MCP server (nbaradar/obsidian-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.