OpenAI
Stack Pack.

OpenAI coverage focused on the 2026 surface: Responses API as the new default (replacing chat-completions), Assistants v2 with file search and code interpreter, structured outputs with JSON Schema, Realtime API for voice agents, batch for offline workloads, and the o-series reasoning models. Opinions on which surface fits which workload.

Why it's in the catalog. OpenAI shipped the most aggressive API churn of any provider in 2025 — Responses API, Assistants v2, Realtime, batch. The pack carries the canonical "use this for this" decision tree, plus the cost-aware reasoning model selection.

Headline products and features the pack carries opinions on. Each lives as its own canonical page under stacks/openai/<product>.md in the etyb-skills repo — currency-stamped, sourced, opinionated.

• Responses API
• Assistants v2
• Structured outputs
• Realtime API
• Batch API
• Vector stores
• o-series reasoning models
• GPT-5 family
• Embeddings
• Computer use
• Whisper
• TTS

When /etyb routes a request to one of these roles AND the OpenAI pack is in play, the role's reference is composed with the platform-flavored knowledge from this stack. Same role, sharper answer.

• › ai-ml-engineer
• › backend-architect
• › system-architect
• › security-engineer

The three things on OpenAI that a 2024-cutoff model is most likely to get wrong — and that this pack reflects.

• Responses API: streaming + tool use + file search in one surface, replacing chat-completions over time
• o-series reasoning: the right choice for math, code, and planning tasks; not for free-form chat
• Realtime API: WebSocket-based voice agents with sub-200ms turn-taking

The OpenAI pack comes with /etyb — one install, every pack ready to go. The overlay loads automatically when the work calls for it.

$ npx skills add e-t-y-b/etyb-skills

See the full install guide for Claude Code plugin and manual routes.