Anthropic's Elie Schoppik explains the SKILL.md format, progressive disclosure, and how skills compare with tools, MCP and subagents, then builds custom skills for Claude.ai, Claude Code, the Claude API and a research agent on the Claude Agent SDK. For builders who want one reusable way to give agents specialized know-how across Anthropic's products.
Who it's for
Developers and builders. This is a beginner-level course in AI Agents & Developer Tools, running about ~2.3 hours (10 video lessons).
Cost at a glance
Free to audit. Videos are free with a DeepLearning.AI account; the graded quiz and accomplishment require DeepLearning.AI Pro ($25/month billed annually or $30/month billed monthly). Price seen 2026-11-01.
Compare the alternatives
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Microsoft · Free
Premium alternative
Udacity · $249/mo
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