Superpowers

What it does

• Composable skill library — Claude Code loads skills on-demand via the Skills system
• Opinionated engineering skills: TDD, debugging, brainstorming, writing plans, writing skills
• Project-level (.claude/skills/) + repo-wide coverage; skills are plain Markdown + frontmatter
• Each skill teaches a discipline — Claude reads the SKILL.md and applies the pattern to the current task
• Maintained by obra (Steve Yegge's outfit) — one of the longest-running Claude Code tooling efforts

When to use it

Best for teams that want every Claude Code session to start with engineering discipline — TDD-first workflow, structured planning before code, systematic debugging. Drop the repo into your .claude/skills/ directory and Claude Code picks them up automatically. Pairs well with hooks for enforcing the same discipline across the team.

Getting started

git clone https://github.com/obra/superpowers ~/.claude/skills/superpowers

Or add as a project-level skill: clone into .claude/skills/superpowers in the repo root. Claude Code picks them up at session start.

Things to know

Skills are opinionated — review the SKILL.md files before adopting wholesale. Some skills assume TDD-first or specific commit conventions that may not match your team's style. The skill library evolves rapidly; pin a commit or release tag for production stability.