head to head · open source
ponytail vs nuwa-skill
ponytail has 187,014 GitHub stars, 10,363 forks, 270 open issues and last shipped 12 days ago. nuwa-skill has 37,832 stars, 4,862 forks, 29 open issues and last shipped 7 days ago. ponytail leads on adoption by 394% (187,014 vs 37,832 stars). ponytail is written in JavaScript under MIT; nuwa-skill is written in Python under MIT. ponytail has attracted 6% as many forks as stars, nuwa-skill 13%. nuwa-skill was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (agent-skills, ai-agents, claude-code), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| ponytail | nuwa-skill | |
|---|---|---|
| GitHub stars | ★ 187K | ★ 38K |
| License | MIT | MIT |
| Written in | JavaScript | Python |
| Last push | 2026-10-29 | 2026-11-03 |
| Forks | ⑂ 10K | ⑂ 4.9K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ponytail if
- You weight community size — 187K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick nuwa-skill if
- You want the nuwa-skill feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and nuwa-skill fits your workflow better
About ponytail
Ponytail He says nothing. He writes one line. It works. 54% less code (up to 94%) · 20% cheaper · 27% faster · 100% safe Measured on real Claude Code sessions editing a real open source repo (FastAPI + React), against the same agent with no skill. 54% is the mean across 12 feature tasks (Haiku 4.5, n=4); it reaches 94% where an agent over builds (a date picker) and is near zero where the code is already minimal. ponytail keeps every safety guard while a bare "write one liners" prompt drops one. (The earlier single shot benchmark reported 80 94% as a flat figure; against a fair agentic…
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About nuwa-skill
女娲.skill 动画由 huashu motion 制作，女娲形象与每一种画风都由代码绘制 「你想蒸馏的下一个员工，何必是同事」 女娲帮你蒸馏任何人的思维方式，让乔布斯、马斯克、芒格、费曼都给你打工。 基于开放的 Agent Skills 协议，可在 Claude Code、Codex、Cursor、OpenClaw、Hermes Agent、CodeBuddy、Workbuddy、Gemini CLI、OpenCode、DeepSeek Harness 等 50+ 兼容 runtime 中运行。 同事.skill 证明了蒸馏一个人是可行的。 那何必蒸馏同事？去蒸馏乔布斯、芒格、费曼、马斯克。 只需输入一个名字，女娲自动完成调研、提炼、验证全流程。 看效果 · 安装 · 它蒸馏了什么 · 工作原理 其他语言 / Other Languages: English · 日本語 · 한국어 · Español 效果示例 再来一个大家更熟悉的。蒸馏乔布斯之后，问他「OpenAI和Anthropic谁的方向对」： 这不是角色扮演。乔布斯用的是「聚焦即说不」和「端到端控制」心智模型，Naval用的是「欲望即合同」，马斯克用的是「渐近极限法」。 它们不是在复读名人语录，是在用名人的认知框架帮你分析。 安装 女娲基于开放的 Agent Skills 协议，可在任何 skills compatible 的 AI agent…
read the full nuwa-skill overview →
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Frequently asked questions
Is ponytail or nuwa-skill more popular?
ponytail has 187,014 GitHub stars and nuwa-skill has 37,832. ponytail has the larger community by that measure.
Are ponytail and nuwa-skill free?
Both are open source. ponytail is licensed under MIT and nuwa-skill under MIT. Neither carries a licence fee.
What is the difference between ponytail and nuwa-skill?
ponytail is written in JavaScript and nuwa-skill in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, ponytail or nuwa-skill?
Choose ponytail if you want the larger community (187,014 stars) or its MIT licence terms. Choose nuwa-skill if its feature set, stack or MIT licence fits better. Both are self-hostable.