How to generate a clear document from a task-based screen recording with only relevant screenshots and descriptions?

I have a screen-recording video of someone performing a series of tasks in a back-office/ investment banking workflow. I want to create a structured document from this video that includes:

Only contextually relevant screenshots showing actual UI changes

Step-by-step descriptions of what is happening in the video

A final well-formatted document combining screenshots and descriptions

The goal is that a person shouldn’t need to watch the video—they should be able to understand the entire task and its step-by-step procedure just by going through the document.

What’s the best way or workflow to achieve this using AI?

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Hmm… Scribe or Tango?

Thanks for the suggestion! I’ve read about Scribe and Tango — they’re great for live tracking of user actions while performing tasks.

However, in my case, I already have pre-recorded screen videos, and I’m looking to automatically extract meaningful screenshots + generate step-by-step descriptions based on what’s happening in the video (including silent UI actions).

As far as I know, Scribe and Tango don’t support importing existing videos to auto-generate guides. Do you know any tools or workarounds that can help with video-based extraction instead?