publish_image · Mcp Xhs Publisher MCP: Risk & Policy

WHAT IT DOES

What publish_image does on Mcp Xhs Publisher

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

WHY IT NEEDS A POLICY

Why publish_image needs a policy

This tool creates new posts/content on Xiaohongshu (a social media platform with millions of users). While reversible in principle (posts can be deleted), the creation of user-generated content at scale, potential for spam, misinformation, or unauthorized posting makes this a Write-category tool with high severity.

From the tool's definition Tool description indicates '发布图文笔记到小红书平台' (publish image-text notes to Xiaohongshu platform), which creates new content on a social media platform. The name 'publish_image' and description explicitly describe content creation functionality.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

publish_image Rate-limited

publish_image 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": {
    "publish_image": {
      "limits": [
        {
          "counter": "publish_image_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 Mcp Xhs Publisher, so you can run agents against it safely.

FAQ

Questions about publish_image

What does the publish_image tool do? +

发布图文笔记到小红书平台，支持多张图片和话题标签. It is categorised as a Write tool in the Mcp Xhs Publisher MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on publish_image? +

Register the Mcp Xhs Publisher MCP server in PolicyLayer and add a rule for publish_image: 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 Mcp Xhs Publisher. Nothing to install.

What risk level is publish_image? +

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

Can I rate-limit publish_image? +

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

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

publish_image is provided by the Mcp Xhs Publisher MCP server (noveldig/mcp-xhs-publisher). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.