append_to_note_tool · Alaya MCP: Risk & Policy

WHAT IT DOES

What append_to_note_tool does on Alaya

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

WHY IT NEEDS A POLICY

Why append_to_note_tool needs a policy

This tool modifies an existing note by appending content to it. It is a reversible write operation (the original content remains; only new content is added). Misuse could pollute notes with unwanted content, but changes can generally be undone by removing the appended text.

From the tool's definition Append text to an existing note. Optionally target a section and/or prepend a date heading.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

append_to_note_tool Rate-limited

append_to_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": {
    "append_to_note_tool": {
      "limits": [
        {
          "counter": "append_to_note_tool_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 Alaya, so you can run agents against it safely.

FAQ

Questions about append_to_note_tool

What does the append_to_note_tool tool do? +

Append text to an existing note. Optionally target a section and/or prepend a date heading. It is categorised as a Write tool in the Alaya MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on append_to_note_tool? +

Register the Alaya MCP server in PolicyLayer and add a rule for append_to_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 Alaya. Nothing to install.

What risk level is append_to_note_tool? +

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

Can I rate-limit append_to_note_tool? +

Yes. Add a rate_limit block to the append_to_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 append_to_note_tool completely? +

Set action: deny in the PolicyLayer policy for append_to_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 append_to_note_tool? +

append_to_note_tool is provided by the Alaya MCP server (luke-kucing/alaya). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.