# Personal Agent Micro Break Ocular Strain Ergonomics Skill

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Zero-dependency ciliary accommodation spasm modeler, Hansraj cervical spine torque calculator, tear film break-up time estimator, and 20-20-20 micro-recovery scheduler.

## Architecture

```mermaid
flowchart TD
    VisualSession[Continuous Screen Time, Distance, Lux, Nits] --> OcularEngine[Ciliary Accommodative Strain Engine]
    OcularEngine --> DiopterDemand[Accommodation Diopters & Suppressed Blinking]
    DiopterDemand --> OpticalBreak[20-20-20 Micro-Break Scheduler]
    PostureAngle[Head Tilt Angle 0 - 60 deg] --> HansrajEngine[Hansraj Cervical Torque Model]
    HansrajEngine --> SpinalLoad[Effective Cervical Weight: 10 - 60 lbs]
    SpinalLoad --> PostureRemediation[Ergonomic Display Elevation & Chin-Tuck Rx]
```

## Quickstart

```python
from client import PersonalAgentMicroBreakOcularStrainErgonomics

agent = PersonalAgentMicroBreakOcularStrainErgonomics()
res = agent.calculate_cervical_spine_torque(head_tilt_angle_degrees=30.0)
print(f"Spinal Load: {res['effective_cervical_spine_load_lbs']} | Status: {res['biomechanical_posture_classification']}")
```