CCAR-F objective 3.2 · Domain 3 · 20% of the exam
Custom Slash Commands and Skills
The title implies two mechanisms, and the documentation has merged them: a file at .claude/commands/deploy.md and a skill at .claude/skills/deploy/SKILL.md both produce /deploy and behave the same. The axis that still decides is when the body loads. A skill loads on invocation, an instruction file loads every session, which is why a long procedure belongs in the former. Precedence runs backwards from most config systems, with personal beating project. And two frontmatter fields are worth memorising: disable-model-invocation keeps a deploy out of Claude's hands, while allowed-tools grants permissions for the invoking turn only.
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The rest of domain 3: Claude Code Configuration and Workflows
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