keyword: POWERS
I tested over 100 Claude Code skills. These are the 5 I'd never start a project without. Each one bolts a real capability onto Claude Code: design, planning, security, restraint, and self-testing, so it behaves less like autocomplete and more like a senior teammate. Below is what each one is, why it earns its spot, and the exact install command.
The one-page summary
| Skill | What it does | Install (one line) |
|---|---|---|
| 1. Superdesign | A real design canvas: mocks up UI directions and hands back React + Tailwind. | npx skills add superdesigndev/superdesign-skill |
| 2. Superpowers | Plan-first team that specs, spins up subagents, and refuses code before tests exist. | /plugin marketplace add obra/superpowers-marketplace → /plugin install superpowers@superpowers-marketplace |
| 3. Trail of Bits audit | Pro static analysis (CodeQL, Semgrep) that flags real, reachable vulnerabilities. | /plugin marketplace add trailofbits/skills → install "static-analysis" |
| 4. Karpathy skill | Touch only what the task needs: stops Claude rewriting working code. | /plugin marketplace add forrestchang/andrej-karpathy-skills → /plugin install andrej-karpathy-skills@karpathy-skills |
| 5. Playwright | Drives a real browser, clicks through what it built, and fixes what breaks. | claude mcp add playwright npx @playwright/mcp@latest |
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Unlocks: 1. Superdesign · 2. Superpowers · 3. Trail of Bits security audit · 4. The Karpathy skill · 5. The Playwright skill · +1 more
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