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Glossary term

Skill (Claude Code)

A saved, reusable set of instructions that Claude Code loads by name, stored as a folder containing a SKILL.md file, either per user or committed to a project. Teams use skills to run the same cost query or report the same way every time. Why it matters: It turns a good one-off prompt into a repeatable team workflow that can be reviewed like code.

3 lesson references ← Back to glossary
Where it appears

Read the term in context.

Each row is a lesson that uses this term. The lesson where it first appears is the canonical definition.

Start with the bill.

Foundations takes about five hours. The first lesson is nine minutes.

Free curriculum. No paywall. 290 lessons across 7 courses, plus an optional 24-lesson beginner course. Browse every course without an account; a free account opens the lessons, saves your progress and opens the exams for three publicly verifiable credentials. Read it on the train, take the exam on a Saturday, list the credential on your résumé Monday.

5h median time to finish Foundations
free account, every course, no paywall
3 certifications, each with a public verifier
Multi-cloud automation· Production-ready in 30 min· SOC 2 · ISO 27001· 20–60% off the bill, first month· 4 platforms · 1 console· Multi-cloud automation· Production-ready in 30 min· SOC 2 · ISO 27001· 20–60% off the bill, first month· 4 platforms · 1 console·