AI agents call get_video_frames 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 retrieves and extracts frames from publicly accessible video content. It reads data (video frames) and returns them in encoded format. There are no side effects, modifications to data, code execution, financial implications, or destructive operations.
From the tool's definition Tool 'get_video_frames' performs 'Extract keyframes from a YouTube video as base64-encoded JPEGs' — a retrieval operation that queries and extracts visual data without modifying, executing code, or causing irreversible changes.
Attacks that exploit this kind of access
Extract keyframes from a YouTube video as base64-encoded JPEGs. 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_video_frames: 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_video_frames 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_video_frames 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_video_frames. 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_video_frames 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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