# How to define a "usable" human demonstration clip before collection

- Source: Reddit r/robotics
- Published: 2026-10-20T21:33:15.000Z
- RoboHot: https://robohot.news/en/items/cb2o7zeufuydl2m3pon4mddmz
- Original: https://www.reddit.com/r/robotics/comments/1xb4vek/how_do_you_define_a_usable_human_demonstration/

## Summary

Someone on Reddit r/robotics asked how to define a "usable" human demonstration clip before collecting data. The author's initial checklist includes: whether the target object is visible at grasp onset, contact, and release; how to define task start and end points; whether the hand stays in frame throughout; and whether to split holdout sets by person or by site rather than by clip. The author also asks people with experience training on demonstration data which item most often causes rework and what they themselves missed.