add_sticky_note · xigua- MCP: Risk & Policy

WHAT IT DOES

What add_sticky_note does on xigua-MCP

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

WHY IT NEEDS A POLICY

Why add_sticky_note needs a policy

The tool creates new sticky notes, which is a Write operation (data creation). Severity is low because sticky notes are typically low-value user data with minimal blast radius. The operation is reversible (notes can be deleted), distinguishing it from Destructive. Confidence is high due to clear semantics of 'add' and the sticky note context in the server description.

From the tool's definition Tool name 'add_sticky_note' and description '添加新便签' (add new sticky note) indicates creation of new data in a note-taking system. This is a reversible write operation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

add_sticky_note Rate-limited

add_sticky_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": {
    "add_sticky_note": {
      "limits": [
        {
          "counter": "add_sticky_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 xigua-MCP, so you can run agents against it safely.

FAQ

Questions about add_sticky_note

What does the add_sticky_note tool do? +

添加新便签. It is categorised as a Write tool in the xigua-MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on add_sticky_note? +

Register the xigua- MCP server in PolicyLayer and add a rule for add_sticky_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 xigua-MCP. Nothing to install.

What risk level is add_sticky_note? +

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

Can I rate-limit add_sticky_note? +

Yes. Add a rate_limit block to the add_sticky_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 add_sticky_note completely? +

Set action: deny in the PolicyLayer policy for add_sticky_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 add_sticky_note? +

add_sticky_note is provided by the xigua- MCP server (xiguaxiaome/xigua-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.