Bundled Skills - Claude Code

Claude Code ships with a small library of built-in skills for common workflows. You don't have to write them - they're there from the first session.

What it does

Skills like /simplify (review and simplify recent code changes), /batch (group similar edits), /debug (enable debug logging), and /fast (shift to faster mode) cover the patterns Anthropic has seen repeat across users. Run / in an interactive session to browse the full list.

When to use it

• Quick actions that would otherwise need a paragraph prompt.
• First-time users who want to see what Claude Code can do.
• Troubleshooting - /debug is often the fastest path to logs.
• Inspiration for your own skill library.

Gotchas

• Built-in skill names can collide with custom skills. Use plugin namespaces if you ship your own.
• Some bundled skills require specific plans or features (Opus, fast mode).
• The list evolves between releases. Check the menu after upgrades.

Official docs: https://code.claude.com/docs/en/interactive-mode.md#commands