Free guide · Oct 11, 2026
Watch Skill: find the moment, then check the result
How to index a recording, inspect a timestamp, and write a bounded check.
The short version
I would use Watch Skill on a short recording with one question you can answer yourself. Find the relevant timestamp, open the actual frame and compare it with a frozen expected result. Keep those two jobs separate: a video can show what happened, while a deterministic check evaluates the requirement you wrote.
This guide covers indexing a recording, inspecting a cited moment and writing a bounded check. Our original example is a two-item cart that keeps a shipping charge after crossing a free-shipping threshold. It differs from the owner's single-item tax example.
What's in the full guide
- 01Define the question before recording
- 02Choose the engine you actually need
- 03Index the short recording
- 04Inspect the moment yourself
- 05Write a bounded deterministic check
- 06Run the check against the right workspace
- 07Keep the repair and the evidence separate
- 08The important boundary
- 09Your first action