AI agents call audio_extract to retrieve information from MCP Video Extraction Plus without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Audio/video text extraction is a read-only operation that retrieves transcribed or extracted text without modifying, executing code, deleting, or creating financial obligations. The low severity reflects minimal blast radius—worst case, an AI agent might extract text from unintended files, but this causes no permanent damage, financial loss, or system compromise.
From the tool's definition The tool description states it extracts text content ('提取文字内容') from audio or video files. The sibling tools are 'audio_download' and 'video_download', and the server description emphasizes 'speech-to-text transcription' and 'text extraction'.
Documented attack patterns abuse exactly the kind of access audio_extract gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and MCP Video Extraction Plus, and nothing reaches the server without passing your rules. This is the rule we recommend for audio_extract:
{
"version": "1",
"default": "deny",
"tools": {
"audio_extract": {}
}
}audio_extract is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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从音频或视频文件中提取文字内容. It is categorised as a Read tool in the MCP Video Extraction Plus MCP Server, which means it retrieves data without modifying state.
Register the MCP Video Extraction Plus MCP server in PolicyLayer and add a rule for audio_extract: 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 Video Extraction Plus. Nothing to install.
audio_extract 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 audio_extract 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 audio_extract. 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.
audio_extract is provided by the MCP Video Extraction Plus MCP server (takereshui/mcp-video-extraction-plus). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from MCP Video Extraction Plus, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
3 MCP Video Extraction Plus tools catalogued and risk-classified — across an index of 43,000+ MCP servers.