AI agents call get_note_by_code to retrieve information from Douyin Video Knowledge Base MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves a specific note from the knowledge base using a video code as the lookup key. There is no modification, deletion, execution, or financial activity—only data retrieval with no side effects. Severity is low because misuse by an AI agent would only leak information from the knowledge base, with no destructive or operational consequences.
From the tool's definition Tool name 'get_note_by_code' and description '通过视频码获取笔记' (retrieve note by video code) indicate a retrieval operation.
Documented attack patterns abuse exactly the kind of access get_note_by_code gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Douyin Video Knowledge Base MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_note_by_code:
{
"version": "1",
"default": "deny",
"tools": {
"get_note_by_code": {}
}
}get_note_by_code is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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通过视频码获取笔记。. It is categorised as a Read tool in the Douyin Video Knowledge Base MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Douyin Video Knowledge Base MCP Server MCP server in PolicyLayer and add a rule for get_note_by_code: 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 Douyin Video Knowledge Base MCP Server. Nothing to install.
get_note_by_code is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_note_by_code 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 get_note_by_code. 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.
get_note_by_code is provided by the Douyin Video Knowledge Base MCP Server MCP server (skepty2333/douyin-full-stack-summarizer). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 7 Douyin Video Knowledge Base MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
7 Douyin Video Knowledge Base MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.