CCA-F: Claude Certified Architect — Foundations

Claude Code skills are defined in a SKILL.md file inside a directory named after the skill, and the skill's directory name becomes its slash-command name (e.g., a skill in migrate-component/SKILL.md is invoked with /migrate-component). Placing the skill under the project's .claude/skills/ directory at the project root and committing it to version control ensures it is a project-level (not personal) skill: every developer who clones or pulls the repository automatically gets the same skill, and any updates made by teammates are picked up the next time they pull, keeping the workflow in sync across the team. Personal skills under ~/.claude/skills/ are local to a single developer's machine and are not shared, settings.json does not support defining skills via a skillOverrides field, and CLAUDE.md is intended for persistent contextual project guidance rather than for defining an invocable slash-command workflow.