feat(fetchers): enhance YouTubeFetcher with transcript extraction#88
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feat(fetchers): enhance YouTubeFetcher with transcript extraction#88
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- Add transcript extraction via YouTube timedtext API - Parse timedtext XML format into joined transcript text - Truncate very long transcripts (>15k chars) with indicator - Show "No transcript available" when captions are unavailable - Add mobile URL support (m.youtube.com) - Add comprehensive tests: timedtext parsing, entity decoding, transcript truncation, formatting with/without all fields Closes #56
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What
Enhance YouTubeFetcher with transcript/captions extraction via the timedtext API.
Why
Closes #56 — Agents encounter YouTube links but can't watch video. Extracting transcripts turns video content into LLM-consumable text. The existing implementation only had oEmbed metadata with no transcript support.
How
Risk
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