AI agents use upload_douyin_video to create or update resources in Dy — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Dy environment.
This tool uploads video files to Douyin (TikTok China), which creates new data/content on the platform. While uploads are reversible (videos can be deleted), this is a content creation action that modifies the platform's state. It carries high severity due to potential for mass uploading, spam, or unauthorized content distribution to a large audience.
From the tool's definition Tool description states '上传指定路径下的视频' (upload video from specified path). Server description confirms 'uploading videos from specified local paths.' The tool creates new content on the Douyin platform.
Documented attack patterns abuse exactly the kind of access upload_douyin_video gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Dy, and nothing reaches the server without passing your rules. This is the rule we recommend for upload_douyin_video:
{
"version": "1",
"default": "deny",
"tools": {
"upload_douyin_video": {
"limits": [
{
"counter": "upload_douyin_video_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}upload_douyin_video 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.
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上传指定路径下的视频. It is categorised as a Write tool in the Dy MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Dy MCP server in PolicyLayer and add a rule for upload_douyin_video: 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 Dy. Nothing to install.
upload_douyin_video is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the upload_douyin_video 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.
Set action: deny in the PolicyLayer policy for upload_douyin_video. 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.
upload_douyin_video is provided by the Dy MCP server (vipcong816/dy-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Dy, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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4 Dy tools catalogued and risk-classified — across an index of 43,000+ MCP servers.