zlatkoc/youtube-summarize

v0.3.0 Breaking

This release includes 1 breaking change for platform teams planning a safe upgrade.

Published 1mo MCP Developer Tools

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✓ No known CVEs patched

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✓ No known CVEs patched in this version

Summary

AI summary

Output formats for get_transcript and summarize_transcript now include video metadata by default.

Full changelog

Highlights

New get_video_metadata tool — fetch title, description, channel, upload date, duration, views, tags, chapters, and thumbnail for any YouTube video (backed by yt-dlp).
New list_playlist_videos tool — fast-mode enumeration of any public YouTube playlist (title, ID, channel, duration, views, URL per video). Supports sorting by index (default), title, duration, or views, with a configurable limit (default 500).
Optional timestamps in plain-text transcripts — pass include_timestamps=true to get_transcript or summarize_transcript to prefix each line with [HH:MM:SS].
summarize_transcript prompt review — output now includes a [PROMPT_SOURCE] line (default vs user-supplied) and a [VIDEO] block, so a human can review the full prompt before the LLM acts on it.

Breaking change (output format only)

get_transcript and summarize_transcript now include video metadata in their default output (a [METADATA] / [VIDEO] block prepended to the transcript). Pass include_metadata=false to restore the previous transcript-only output.
No tool parameters were renamed or removed — existing call sites continue to work; only the default response shape has grown.

Other

Adds yt-dlp as a runtime dependency.

Breaking Changes

get_transcript and summarize_transcript now prepend [METADATA] / [VIDEO] blocks to transcript output by default; use include_metadata=false to get the previous transcript-only response.

View diff on GitHub

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About zlatkoc/youtube-summarize

MCP server that fetches YouTube video transcripts and optionally summarizes them. Supports multiple transcript formats (text, JSON, SRT, WebVTT), multi-language retrieval, and flexible YouTube URL parsing.

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