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Claude Code~16 min
Skills, Slash Commands, and Subagents
Extend Claude Code with description-driven skills, argument-aware slash commands, and context-isolated subagents, and know when to reach for each.
What you will be able to do
- ✓Author a SKILL.md with the required name/description frontmatter and explain progressive disclosure
- ✓Define project slash commands in .claude/commands/ and interpolate $ARGUMENTS / $1
- ✓Describe a subagent's isolated context window and the effect of omitting the tools field
- ✓Choose between a skill and a subagent based on in-context extension vs delegated isolation
3 concepts·5 hands-on exercises·3-question check