AI agents call get_audio_features to retrieve information from Yt without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool extracts metadata and descriptive features from audio data. It has no side effects beyond computation — it does not modify the source audio, execute arbitrary code, delete data, or initiate external operations. The local execution and use of a dedicated feature-extraction library confirm this is purely analytical (Read category).
From the tool's definition Tool 'get_audio_features' analyzes audio characteristics using librosa and 'runs locally' — it performs acoustic analysis without modifying, executing code externally, or affecting data persistence.
Attacks that exploit this kind of access
Analyze audio characteristics using librosa (runs locally). It is categorised as a Read tool in the Yt MCP Server, which means it retrieves data without modifying state.
Register the Yt MCP server in PolicyLayer and add a rule for get_audio_features: 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 Yt. Nothing to install.
get_audio_features 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_audio_features 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_audio_features. 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_audio_features is provided by the Yt MCP server (pakmangames/yt-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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