CODEX.md

# Codex Contributions to Soap Lab

## Features built with Codex

### 1. Custom UI Redesign
- Warm cream/amber soap maker notebook aesthetic
- Caveat Google Font header
- Visual progress bars for quality scores
- Recipe card examples replacing default Gradio table
- Mobile responsive layout

### 2. Agentic Recipe Optimiser
- Multi-step improvement loop (up to 3 passes)
- Deterministic score-based oil adjustment rules
- Before/after score comparison with improvement arrows
- Wired into existing chemistry engine and AI explanation layer

## Model
Qwen/Qwen2.5-3B-Instruct via Featherless AI — Tiny Titan eligible (≤4B parameters)