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Cobra

Target Spinal erectors  ·  Equipment Body weight  ·  Level Beginner  ·  Reps 4

Cobra is a beginner-level yoga movement targeting the spinal erectors, written in Posecode, a small open-source language that LLMs like ChatGPT, Claude, and Gemini can write to describe human movement as text. Every joint angle below is hard-clamped to a safe range of motion.

How to do it

1. Lift2.5s · ease-in-out Press the palms into the floor and lift the chest, shoulders rolling back
2. Lower2.5s · ease-in-out Lower the chest back to the floor with control

The .posecode source

This is the exact text an LLM writes to produce the animation above: phases and joint angles, not 3D transforms.

posecode stretch "Cobra"
  rig humanoid
  pose start = prone

  step "Lift" 2.5s ease-in-out:
    spine: extend 30
    chest: extend 15
    neck: extend 25
    shoulders: flex 50
    elbows: flex 25
    reach: hands floor
    cue "Press the palms into the floor and lift the chest, shoulders rolling back"

  step "Lower" 2.5s ease-in-out:
    spine: extend 0
    chest: extend 0
    neck: extend 0
    shoulders: flex 0
    elbows: flex 0
    reach: hands floor
    cue "Lower the chest back to the floor with control"

  repeat 4

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