Stateless CLI (design/dist/design) wrapping OpenAI Responses API for
UI mockup generation. Three working commands:
- generate: brief -> PNG mockup via gpt-4o + image_generation tool
- check: vision-based quality gate via GPT-4o (text readability, layout
completeness, visual coherence)
- compare: generates self-contained HTML comparison board with star
ratings, radio Pick, per-variant feedback, regenerate controls,
and Submit button that writes structured JSON for agent polling
Auth reads from ~/.gstack/openai.json (0600), falls back to
OPENAI_API_KEY env var. Compiled separately from browse binary
(openai added to devDependencies, not runtime deps).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Garry Tan