skills.sh

Open community directory for Claude Code skills — installable agent capabilities packaged as markdown + scripts. Functions as the de-facto registry for the Claude Code skills ecosystem: anyone can publish a skill, anyone can install one with a single command.

Why it matters

The Claude Code skills marketplace is one of the strongest signals of the wiki’s agent harness primitives thesis: when an agent harness ships a clean extension surface, an ecosystem forms around it almost immediately. skills.sh is where that ecosystem lives. The directory is what makes Remotion (150k+ installs in 8 weeks), GStack, Superpowers, Impeccable, Agency, and dozens of others discoverable.

What’s on it

A growing catalog of skills published by individual creators, companies (Vercel, Anthropic, Microsoft), and the broader Claude Code community. Skills cover frontend design, video generation, testing discipline, agent role templates, knowledge management, and much more. Each entry typically includes a one-line install command and a description of what the skill does.

Notable installs

• Remotion — 150,000+ installs within 8 weeks of launch; #1 skill not made by Vercel, Anthropic, or Microsoft. The canonical example of a Claude Code skill becoming a viral install in its own right.
• GStack — YC President Gary Tan’s startup methodology as Claude Code skills (~50k stars).
• Superpowers — TDD-enforcing plugin (115k stars).
• Impeccable — frontend design skill (17 UI commands).
• Agency — role-based agent templates (frontend, backend, security, etc.).

Sources

• A Markdown File Just Replaced Your Most Expensive Design Meeting — first wiki source on skills.sh as a registry; cites the Remotion install metric
• 7 Open-Source AI Tools — covers the broader skills ecosystem

See Also

• Claude Code — the harness skills.sh extends
• Agentic Harness Primitives — the framework that makes a registry like this viable
• Remotion — the breakout install that anchored the registry