head to head · open source
Anthropic-Cybersecurity-Skills vs vuls
Anthropic-Cybersecurity-Skills has 32,960 GitHub stars, 3,985 forks, 48 open issues and last shipped 19 days ago. vuls has 12,263 stars, 1,243 forks, 92 open issues and last shipped yesterday. Anthropic-Cybersecurity-Skills leads on adoption by 169% (32,960 vs 12,263 stars). Anthropic-Cybersecurity-Skills is written in Python under Apache-2.0; vuls is written in Go under GPL-3.0. Anthropic-Cybersecurity-Skills has attracted 12% as many forks as stars, vuls 10%. vuls was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (cybersecurity), 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 | vuls | |
|---|---|---|
| GitHub stars | ★ 33K | ★ 12K |
| License | Apache-2.0 | GPL-3.0 |
| Written in | Python | Go |
| Last push | 2026-08-31 | 2026-09-18 |
| Forks | ⑂ 4.0K | ⑂ 1.2K |
| 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 vuls if
- You want the vuls feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches Go
- You evaluated both and vuls 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 vuls
Vuls is an agent less vulnerability scanner written in Go and licensed under GPL 3.0, aimed at system administrators and security teams that must find and track known vulnerabilities across Linux, FreeBSD, Windows and macOS hosts, containers, WordPress installs, programming language libraries and network devices without installing an agent on every machine.
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Frequently asked questions
Is Anthropic-Cybersecurity-Skills or vuls more popular?
Anthropic-Cybersecurity-Skills has 32,960 GitHub stars and vuls has 12,263. Anthropic-Cybersecurity-Skills has the larger community by that measure.
Are Anthropic-Cybersecurity-Skills and vuls free?
Both are open source. Anthropic-Cybersecurity-Skills is licensed under Apache-2.0 and vuls under GPL-3.0. Neither carries a licence fee.
What is the difference between Anthropic-Cybersecurity-Skills and vuls?
Anthropic-Cybersecurity-Skills is written in Python and vuls in Go. 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 vuls?
Choose Anthropic-Cybersecurity-Skills if you want the larger community (32,960 stars) or its Apache-2.0 licence terms. Choose vuls if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.