insert_at_heading · Obsidian Tools MCP Server MCP

WHAT IT DOES

What insert_at_heading does on Obsidian Tools MCP Server

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

WHY IT NEEDS A POLICY

Why insert_at_heading needs a policy

The tool creates or modifies data (inserting content into a note) in a reversible manner. It does not execute code, delete data irreversibly, move money, or perform destructive operations. While the sibling tools include 'delete_note' (destructive) and 'create_note' (write), this specific tool is classified as Write because it modifies existing notes by inserting content at a specific location.

From the tool's definition Tool name 'insert_at_heading' and description 'Insert content under a specific heading in a note' indicate modification of existing note content. This is a reversible write operation that adds content to a note without deleting or executing code.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

insert_at_heading Rate-limited

insert_at_heading 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": {
    "insert_at_heading": {
      "limits": [
        {
          "counter": "insert_at_heading_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 Tools MCP Server, so you can run agents against it safely.

FAQ

Questions about insert_at_heading

What does the insert_at_heading tool do? +

Insert content under a specific heading in a note. It is categorised as a Write tool in the Obsidian Tools 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 insert_at_heading? +

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

What risk level is insert_at_heading? +

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

Can I rate-limit insert_at_heading? +

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

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

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