# Integrity Audit Report: Week 3 Task 1 - Material Variants

## Objective
Stress test the Material Variant Switcher pattern to verify state integrity, object isolation, and instance management under high-frequency interaction.

## Audit Test Cases & Results
- **High-Frequency Switching**: [PASS] Repeated switching between **3 variants (Red, Blue, Yellow)** over 20+ cycles remained stable.
- **State Predictability**: [PASS] Correct visual state always matched the UI selection.
- **Object Isolation**: [PASS] Mutations to Object A did not leak to Object B.
- **Instance Management**: [PASS] No unintentional material sharing observed.

## Observations
- **Isolation**: Variants are perfectly isolated per mesh node.
- **State Model**: The state model is highly predictable; the builder successfully maintains the "Truth" of the selected variant.
- **UI Match**: The UI and 3D viewport remained in sync, although minor visual latency was noted during sub-200ms click speeds.

## Classification
- **Component Limitation**: None.
- **Runtime Issue**: Minor (Console binding warnings).
- **Editor UX**: Reliable.
- **Schema / Data Model**: Robust.

## Reliability Verdict
**RELIABLE**

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## Product Lens
- **Is this pattern useful for real customers?**: Yes. It is the most stable interaction pattern in the builder.
- **What kind of customer use case does this support?**: Professional product configurators requiring high-speed material swaps.
- **Does Thob feel strong enough for this use case?**: Yes. This is a core Thob strength.
- **What would improve the experience?**: Reducing background console noise to provide a "cleaner" developer audit.

## Recommendation
This pattern should be the benchmark for all other Thob interactions. It is the most stable and reliable way to manage 3D state in the platform today.