Skills concept spreading cross-platform (OpenAI adopts similar pattern)¶
Insight: OpenAI has adopted the "Skills" concept in their API (for GPT-5.2), allowing inline base64-encoded zip files containing SKILL.md and associated files to be sent with API requests. This mirrors Claude Code's skills pattern, suggesting skills are becoming a cross-platform standard for providing agents with specialized capabilities. Willison used Showboat to explore the API, demonstrating the tools composing effectively.
Sources
- Simon Willison — "Skills in OpenAI API" (2026-02-11)
Related: existing entry "Skills architecture in Claude Code" in external/claude-code.md — COMPLEMENTS