a control to test one screen and user behavior, show the change, and re-test. before → fix → after.
- replaces opinions with measured data
- focuses on one change at a time
- creates shareable, timed “before/after” clips
- 60–90s clip: A/B demo on LinkedIn
- time to complete
- errors/cancels
- “felt easy?” 3-question pulse
- wk1: sample task + timing + csv logger
- wk2: simple chart + markdown report
- wk3: variant toggle (a/b)
- wk4: “share report” one-pager export
- setup: /docs/SETUP.md
- test script: /docs/TEST-PLAN.md (placeholder)
- license: MIT