publish_text_card · Xhs Kit MCP: Risk & Policy

WHAT IT DOES

What publish_text_card does on Xhs Kit

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

WHY IT NEEDS A POLICY

Why publish_text_card needs a policy

This tool creates and publishes new content (text-based card notes) to a social media platform, which is a reversible write operation. It modifies platform state by adding new user-generated content. Severity is high because malicious agents could spam, post misleading information, or manipulate audience engagement at scale.

From the tool's definition Tool name 'publish_text_card' and description '发布文字配图笔记（将文字生成为卡片图片）' [publish text card notes (generate text as card images)] indicates creation and posting of content to Xiaohongshu platform.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

publish_text_card Rate-limited

publish_text_card 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_text_card": {
      "limits": [
        {
          "counter": "publish_text_card_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 Kit, so you can run agents against it safely.

FAQ

Questions about publish_text_card

What does the publish_text_card tool do? +

发布文字配图笔记（将文字生成为卡片图片）. It is categorised as a Write tool in the Xhs Kit 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_text_card? +

Register the Xhs Kit MCP server in PolicyLayer and add a rule for publish_text_card: 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 Kit. Nothing to install.

What risk level is publish_text_card? +

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

Can I rate-limit publish_text_card? +

Yes. Add a rate_limit block to the publish_text_card 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_text_card completely? +

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

publish_text_card is provided by the Xhs Kit MCP server (luweizheng/xhs-kit). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.