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A video URL (youtube.com/watch?v=..., youtu.be/..., /shorts/..., /live/...) or a bare 11-character video id returns that video's transcript. A channel (@handle, channel URL or UC... id) or playlist URL is expanded to its latest videos (see \"Max videos per channel / playlist\").", "items": { "type": "string" } }, "maxVideosPerSource": { "title": "Max videos per channel / playlist", "minimum": 1, "maximum": 5000, "type": "integer", "description": "How many of the latest videos to take from each channel or playlist URL you add. Ignored for single video URLs.", "default": 10 }, "maxItems": { "title": "Max videos in total", "minimum": 1, "maximum": 20000, "type": "integer", "description": "Hard cap on how many videos this run processes, across every URL, so you always know your worst-case bill. 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