AI agents call audio_extract to retrieve information from MCP Video & Audio Text Extraction Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs transcription and text extraction from existing audio/video files. It is a retrieval operation with no side effects—it does not create, modify, delete, execute code, or commit financial transactions. The blast radius of misuse is minimal; an agent could extract unwanted transcriptions but cannot corrupt data or cause harm beyond privacy concerns of reading content.
From the tool's definition Tool name is 'audio_extract' and description states '从音频或视频文件中提取文字内容' (extract text content from audio or video files).
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 & Audio Text Extraction Server, 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 & Audio Text Extraction Server MCP Server, which means it retrieves data without modifying state.
Register the MCP Video & Audio Text Extraction Server 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 & Audio Text Extraction Server. 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 & Audio Text Extraction Server MCP server (sealingp/mcp-video-extraction). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from MCP Video & Audio Text Extraction Server, 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 & Audio Text Extraction Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.