head to head · open source
Anthropic-Cybersecurity-Skills vs vuls
Anthropic-Cybersecurity-Skills has 35,453 GitHub stars, 4,318 forks, 48 open issues and last shipped 2 months ago. vuls has 12,325 stars, 1,247 forks, 92 open issues and last shipped 2 days ago. Anthropic-Cybersecurity-Skills leads on adoption by 188% (35,453 vs 12,325 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 | ★ 35K | ★ 12K |
| License | Apache-2.0 | GPL-3.0 |
| Written in | Python | Go |
| Last push | 2026-08-31 | 2026-11-01 |
| Forks | ⑂ 4.3K | ⑂ 1.2K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Anthropic-Cybersecurity-Skills if
- You weight community size — 35K 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 The largest open source cybersecurity skills library for AI agents 818 production grade cybersecurity skills · 34 security domains · 6 framework mappings · 26+ AI platforms Get Started · What's Inside · Frameworks · Platforms · Contributing ⚠️ Community Project — This is an independent, community created project. Not affiliated with Anthropic PBC. 🔐 Authorized & lawful use only. This library includes offensive and dual use techniques (e.g. red team C2, phishing simulation, exploitation) intended for authorized penetration testing, security research, defense, and education . Only…
read the full Anthropic-Cybersecurity-Skills overview →
About vuls
Vuls: VULnerability Scanner Vulnerability scanner for Linux/FreeBSD, agent less, written in Go. Twitter: @vuls en Abstract For a system administrator, having to perform security vulnerability analysis and software update on a daily basis can be a burden. To avoid downtime in a production environment, it is common for a system administrator to choose not to use the automatic update option provided by the package manager and to perform update manually. This leads to the following problems. The system administrator will have to constantly watch out for any new vulnerabilities in NVD (National Vulnerability…
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Frequently asked questions
Is Anthropic-Cybersecurity-Skills or vuls more popular?
Anthropic-Cybersecurity-Skills has 35,453 GitHub stars and vuls has 12,325. 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 (35,453 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.