head to head · open source
Anthropic-Cybersecurity-Skills vs bundler-audit
Anthropic-Cybersecurity-Skills has 35,530 GitHub stars, 4,327 forks, 48 open issues and last shipped 2 months ago. bundler-audit has 2,764 stars, 245 forks, 49 open issues and last shipped 2 days ago. Anthropic-Cybersecurity-Skills leads on adoption by 1,185% (35,530 vs 2,764 stars). Anthropic-Cybersecurity-Skills is written in Python under Apache-2.0; bundler-audit is written in Ruby under GPL-3.0. Anthropic-Cybersecurity-Skills has attracted 12% as many forks as stars, bundler-audit 9%. bundler-audit was the more recently maintained of the two, and both are self-hostable with no licence fee.
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 | bundler-audit | |
|---|---|---|
| GitHub stars | ★ 36K | ★ 2.8K |
| License | Apache-2.0 | GPL-3.0 |
| Written in | Python | Ruby |
| Last push | 2026-08-31 | 2026-11-02 |
| Forks | ⑂ 4.3K | ⑂ 245 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Anthropic-Cybersecurity-Skills if
- You weight community size — 36K 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 bundler-audit if
- You want the bundler-audit feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches Ruby
- You evaluated both and bundler-audit 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 bundler-audit
bundler audit Homepage Issues Documentation Description Patch level verification for [bundler]. Features Checks for vulnerable versions of gems in Gemfile.lock . Checks for insecure gem sources ( and git:// ). Allows ignoring certain advisories that have been manually worked around. Prints advisory information. Does not require a network connection. Synopsis Audit a project's Gemfile.lock : Update the [ruby advisory db] that bundle audit uses: Update the [ruby advisory db] and check Gemfile.lock (useful for CI runs): Checking the Gemfile.lock without updating the [ruby advisory db]: Ignore specific advisories…
read the full bundler-audit overview →
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Frequently asked questions
Is Anthropic-Cybersecurity-Skills or bundler-audit more popular?
Anthropic-Cybersecurity-Skills has 35,530 GitHub stars and bundler-audit has 2,764. Anthropic-Cybersecurity-Skills has the larger community by that measure.
Are Anthropic-Cybersecurity-Skills and bundler-audit free?
Both are open source. Anthropic-Cybersecurity-Skills is licensed under Apache-2.0 and bundler-audit under GPL-3.0. Neither carries a licence fee.
What is the difference between Anthropic-Cybersecurity-Skills and bundler-audit?
Anthropic-Cybersecurity-Skills is written in Python and bundler-audit in Ruby. 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 bundler-audit?
Choose Anthropic-Cybersecurity-Skills if you want the larger community (35,530 stars) or its Apache-2.0 licence terms. Choose bundler-audit if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.