xhs_create_or_update_post · XHS- MCP: Risk & Policy

WHAT IT DOES

What xhs_create_or_update_post does on XHS-MCP

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

WHY IT NEEDS A POLICY

Why xhs_create_or_update_post needs a policy

This tool creates new notes or modifies existing drafts, which are reversible write operations. The severity is medium because misuse could result in unwanted draft content being queued, but the impact is limited since: (1) the content hasn't been published yet, (2) drafts can presumably be deleted before posting, and (3) the actual publication requires a separate 'post' command.

From the tool's definition Tool description states '创建或更新待发布的笔记文件，添加到发布队列' (create or update draft notes, add to publishing queue). The verbs 'create' and 'update' indicate data modification.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

xhs_create_or_update_post Rate-limited

xhs_create_or_update_post 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": {
    "xhs_create_or_update_post": {
      "limits": [
        {
          "counter": "xhs_create_or_update_post_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 XHS-MCP, so you can run agents against it safely.

FAQ

Questions about xhs_create_or_update_post

What does the xhs_create_or_update_post tool do? +

创建或更新待发布的笔记文件，添加到发布队列。创建后的笔记可以通过 post 命令发布到小红书。. It is categorised as a Write tool in the XHS-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 xhs_create_or_update_post? +

Register the XHS- MCP server in PolicyLayer and add a rule for xhs_create_or_update_post: 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 XHS-MCP. Nothing to install.

What risk level is xhs_create_or_update_post? +

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

Can I rate-limit xhs_create_or_update_post? +

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

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

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