head to head · open source
Anthropic-Cybersecurity-Skills vs rengine
Anthropic-Cybersecurity-Skills has 33,135 GitHub stars, 4,017 forks, 48 open issues and last shipped 22 days ago. rengine has 8,852 stars, 1,344 forks, 164 open issues and last shipped yesterday. Anthropic-Cybersecurity-Skills leads on adoption by 274% (33,135 vs 8,852 stars). Anthropic-Cybersecurity-Skills is written in Python under Apache-2.0; rengine is written in HTML under GPL-3.0. Anthropic-Cybersecurity-Skills has attracted 12% as many forks as stars, rengine 15%. rengine was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (infosec), 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
| Anthropic-Cybersecurity-Skills | rengine | |
|---|---|---|
| GitHub stars | ★ 33K | ★ 8.9K |
| License | Apache-2.0 | GPL-3.0 |
| Written in | Python | HTML |
| Last push | 2026-08-31 | 2026-09-21 |
| Forks | ⑂ 4.0K | ⑂ 1.3K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Anthropic-Cybersecurity-Skills if
- You weight community size — 33K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick rengine if
- You want the rengine feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches HTML
- You evaluated both and rengine fits your workflow better
About Anthropic-Cybersecurity-Skills
Anthropic Cybersecurity Skills is an Apache 2.0 Python library of 817 structured cybersecurity skills that gives AI agents the working knowledge of a senior security analyst, aimed at security teams, DevSecOps engineers, and red or blue teams that already run agents such as Claude Code, GitHub Copilot, Codex CLI, Cursor, or Gemini CLI.
read the full Anthropic-Cybersecurity-Skills overview →
About rengine
reNgine is an open source automated reconnaissance framework for web applications, built for penetration testers, bug bounty hunters and corporate security teams who need a configurable, repeatable recon process with the results correlated and stored in one place.
read the full rengine overview →
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Frequently asked questions
Is Anthropic-Cybersecurity-Skills or rengine more popular?
Anthropic-Cybersecurity-Skills has 33,135 GitHub stars and rengine has 8,852. Anthropic-Cybersecurity-Skills has the larger community by that measure.
Are Anthropic-Cybersecurity-Skills and rengine free?
Both are open source. Anthropic-Cybersecurity-Skills is licensed under Apache-2.0 and rengine under GPL-3.0. Neither carries a licence fee.
What is the difference between Anthropic-Cybersecurity-Skills and rengine?
Anthropic-Cybersecurity-Skills is written in Python and rengine in HTML. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Anthropic-Cybersecurity-Skills or rengine?
Choose Anthropic-Cybersecurity-Skills if you want the larger community (33,135 stars) or its Apache-2.0 licence terms. Choose rengine if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.