# NEXT Athlete OS · v97 RC12 Pose Sprite Sequence Builder

## Intent

RC12 tests a new direction for exercise visuals: reuse already-generated transparent athlete poses as a pose-sprite bank rather than generating one premium image per exercise.

This release is intentionally a Bildadmin prototype. It does **not** replace pass-player runtime visuals yet.

## What changed

- All auto-detected non-defective pose candidates were copied into a reusable pose library:
  - `assets/img/exercises/pose-sprites/library/`
- Pose metadata was created:
  - `assets/data/image-admin/pose-sprite-library.json`
- Six seed exercise sequences were created:
  - `assets/data/image-admin/exercise-pose-sequences.json`
- Bildadmin now has a pose-sequence builder under the normal exercise detail view.
- The sequence builder lets the user:
  - preview the current exercise sequence in a 16:9 media stage
  - add poses from the pose bank
  - filter by movement family
  - remove poses
  - move poses left/right
  - duplicate a pose
  - reset to seed
  - clear the sequence
- User edits are stored in browser `localStorage` for prototype testing.

## Pose bank

- Total kept/review candidates: 74
- Auto-rejected tiny/non-athlete components: 5
- Alpha-extracted candidates are marked `keep`.
- Keyed candidates are included for variation but marked `review` because edges may need cleanup.

## Seeded test exercises

- `linear-pogos`
- `bear-crawl`
- `push-up`
- `burpee`
- `goblet-squat`
- `single-arm-row`

## Runtime status

Not active in pass-player runtime yet. This package only proves the Bildadmin sequence-building workflow.

## Next step

Review the pose bank and six seed sequences in Bildadmin. If the workflow feels right, the next package can add a motion-sprite fallback renderer in the pass media card behind a feature flag.