Claude Code Skills & Agents: Build Custom Slash Commands for Real Work

Claude Code is powerful out of the box. Skills and subagents turn it into a steadier system: reusable commands, specialised agents, and workflows that scale with your codebase. What Are Claude Code Skills? If you've used Claude Code for than a week, you've probably noticed a pattern: you type the same kinds of instructions over and over. "Review this PR with focus on security." "Deploy to staging and run smoke tests." "Refactor this component using the patterns from our design system." Skills solve this. A skill is a reusable slash command that gives Claude specific instructions for a task.