update_note_tool

A write tool on the Obsidian MCP server.

SERVERObsidian MCP Server SOURCEadrienthebo/obsidian-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/adrienthebo-obsidian-mcp/update-note-tool.md

WHAT IT DOES

What update_note_tool does on Obsidian MCP Server

AI agents use update_note_tool 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.

RISK

Why update_note_tool is rated Medium

The tool's name and context clearly indicate it updates/modifies note content. This is a Write operation (reversible modification) rather than Destructive, since updates can be undone. Severity is medium because misconfiguration could corrupt important notes, but the effect is reversible.

From the tool's definition Tool name 'update_note_tool' combined with sibling tools including 'create_note_tool', 'edit_note_section_tool', and 'delete_note_tool' on a server that manages Obsidian vaults. The pattern indicates this tool modifies existing notes reversibly.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs update_note_tool safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Obsidian MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For update_note_tool, this is the rule to start with:

update_note_tool Rate-limited

update_note_tool 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": {
    "update_note_tool": {
      "limits": [
        {
          "counter": "update_note_tool_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 Obsidian MCP Server, apply this rule, and every update_note_tool call is checked against it from then on.

FAQ

Questions about update_note_tool

What does the update_note_tool tool do? +

update_note_tool is a write tool on the Obsidian MCP Server MCP server. 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 update_note_tool? +

Register the Obsidian MCP Server MCP server in PolicyLayer and add a rule for update_note_tool: 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 update_note_tool? +

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

Can I rate-limit update_note_tool? +

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

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

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

KEEP EXPLORING

More on Obsidian MCP Server, and thousands of servers like it.

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All 27 Obsidian MCP Server tools →

Across the catalogue

aroflo_create_or_update_record on AroFlo MCP →team_manager_update_budget on Team Manager MCP → The MCP Attack Database →

Guides

Govern customer-ops agents →Argument validation →Scoped token →