head to head · open source
ponytail vs how-claude-code-works
ponytail has 141,465 GitHub stars, 7,581 forks, 270 open issues and last shipped 5 days ago. how-claude-code-works has 3,644 stars, 705 forks, 1 open issues and last shipped 1 months ago. ponytail leads on adoption by 3,782% (141,465 vs 3,644 stars). ponytail is written in JavaScript under MIT; how-claude-code-works is written in various languages under MIT. ponytail has attracted 5% as many forks as stars, how-claude-code-works 19%. ponytail was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (claude, claude-code, llm), 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 | how-claude-code-works | |
|---|---|---|
| GitHub stars | ★ 141K | ★ 3.6K |
| License | MIT | MIT |
| Written in | JavaScript | — |
| Last push | 2026-09-14 | 2026-08-17 |
| Forks | ⑂ 7.6K | ⑂ 705 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ponytail if
- You weight community size — 141K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick how-claude-code-works if
- You want the how-claude-code-works feature set and don't need the biggest community
- You prefer the MIT license terms
- You evaluated both and how-claude-code-works fits your workflow better
About ponytail
Ponytail is an open source agent skill for JavaScript and LLM based coding tools that makes an AI agent write the minimum working code for a task, and it is built for developers and teams running agents such as Claude Code, Codex, or Cursor against real repositories.
read the full ponytail overview →
About how-claude-code-works
How Claude Code Works is an MIT licensed, bilingual educational deep dive into the internals of Anthropic's Claude Code coding agent, written for developers who want to understand how a production agentic coding system is built rather than simply use one.
read the full how-claude-code-works overview →
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Frequently asked questions
Is ponytail or how-claude-code-works more popular?
ponytail has 141,465 GitHub stars and how-claude-code-works has 3,644. ponytail has the larger community by that measure.
Are ponytail and how-claude-code-works free?
Both are open source. ponytail is licensed under MIT and how-claude-code-works under MIT. Neither carries a licence fee.
What is the difference between ponytail and how-claude-code-works?
ponytail is written in JavaScript and how-claude-code-works in various languages. 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 how-claude-code-works?
Choose ponytail if you want the larger community (141,465 stars) or its MIT licence terms. Choose how-claude-code-works if its feature set, stack or MIT licence fits better. Both are self-hostable.