AI From Scratch/Phase 13/Lesson 22/~45 minutes

Skills and Agent SDKs — Anthropic Skills, AGENTS.md, OpenAI Apps SDK

LearnPython (stdlibSKILL.md parser and loader)

MCP says "what tools exist." Skills say "how to do a task." The 2026 stack layers both. Anthropic's Agent Skills (open standard, December 2025) ship as SKILL.md with progressive disclosure. OpenAI's Apps SDK is MCP plus widget metadata. AG...

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