rzen
bb234c198f
Abdominal's pinned hands used elbow -40 as the IK plane hint, drawing the arms hyperextended (user-reported). Flipping the hint bends the elbows the natural way while the hands stay on the handles. Same class of fix for the milder cases: Arm Curl and Shoulder Press elbows and Calfs knees clamp to -8, Side Plank's raised arm to the -70 ROM cap. The whole library now passes render.py --strict with zero warnings, making it a valid verification gate. Fixtures regenerated; 48 tests green. Claude-Session: https://claude.ai/code/session_01HJDQQDA9QdP8zByg43H5v3
Exercise Library
Reference material for exercises the app knows about — one folder per exercise, named exactly as the exercise appears in the app.
Each entry contains:
info.md— the details, always in this order: a one-line summary, quick facts (Category, Type, Targets, Prescription), then Setup, Execution, Cues, Common Mistakes, and Progression (easier → harder — get strong by making the move harder, not by endless reps).motion.json— the exercise scripted as key frames of joint angles on the shared rig (proportions in the library-levelbody.json), with IK pins for planted hands/feet and tween timings. This is the canonical source for all visuals and for the in-app animation planned for the lower half of the exercise screen.- Generated from it by
render.py(never hand-edited):frames/frame-N.svg(one per key frame),preview.gif(the tweened loop), andvisual.svg(the primary frame, for static contexts).
Which exercises the library must contain — the movement-pattern × modality
matrix, the gym-floor census, and the considered exclusions — is defined in
COVERAGE.md; judge additions and removals against it.
The rig and the visual language — right limbs dark / left limbs light with an
embedded R/L legend, nose tick for facing, teal on the working parts, timing
that encodes tempo, plus figure profiles, flipping, and theming — are defined
in SYSTEM.md, along with the motion.json schema and rendering
instructions.
The library lives at the repo root, deliberately outside the app targets' source folders, and is not bundled into the app yet — the in-app presentation format is still being worked out.