Anthropic Skills vs Addy Osmani Agent Skills
Bottom line
anthropics/skills is a reference library; addyosmani/agent-skills is a runnable engineering workflow.
Who it's for — Pick Anthropic's repo to see how Agent Skills are structured, including document skills for Word, PDF and Excel. Pick addyosmani's if you want nine slash commands that carry a coding agent from spec to ship.
Who it's NOT for — Skip Anthropic's if you want one prescribed process rather than a catalogue. Skip addyosmani's if your host cannot load skills; Copilot, for example, exposes them by name only.
One verifiable fact — 187,755 stars vs 113,519, both checked Nov 6, 2026 — a 1.7x gap.
Try / Skip — Try Anthropic's for reference patterns and document skills; try addyosmani's for an end-to-end loop. Skip both if you need a non-agent workflow.
 Anthropic Skills |
 Addy Osmani Agent Skills |
|
|---|---|---|
| Stars | 194,088 checked Nov 13, 2026 | 117,098 checked Nov 13, 2026 |
| Source | github | github |
| First seen | Oct 26, 2026 | Oct 26, 2026 |
| Last seen | Nov 14, 2026 | Nov 14, 2026 |
| Licence | not held | not held |
| Last release | not held | not held |
Related
Sources
star counts as of Nov 6, 2026; README captures dated Oct 26, 2026.