Scored across 8 tools
Most tools are clearly distinct: transcript fetching, raw subtitle fetching, subtitle language listing, video metadata, chapters, frames, playlist transcripts, and search. The only potential confusion is between get_transcript and get_raw_subtitles, but their descriptions clearly separate cleaned plain text from raw SRT/VTT.
The naming follows a consistent get_<resource> pattern: get_transcript, get_raw_subtitles, get_available_subtitles, get_video_info, get_video_chapters, get_video_frame, get_playlist_transcripts, search_videos. The only deviation is search_videos, which uses a verb other than 'get', but it is still a clear and predictable pattern.
8 tools is well-scoped for a transcript/video metadata server. Each tool covers a distinct need: transcripts, raw subtitles, subtitle options, metadata, chapters, frames, playlist handling, and search. No tool feels redundant or unnecessary.
The server covers the core transcript retrieval lifecycle well: discover available subtitles, fetch raw or cleaned transcripts, paginate, and handle playlists. Minor gaps include no direct tool for downloading media or listing video comments, but these are outside the apparent transcript-focused purpose.