head to head · open source
SkillSpector vs codex-security
SkillSpector has 23,886 GitHub stars, 2,061 forks, 136 open issues and last shipped yesterday. codex-security has 11,282 stars, 901 forks, 220 open issues and last shipped yesterday. SkillSpector leads on adoption by 112% (23,886 vs 11,282 stars). SkillSpector is written in Python under Apache-2.0; codex-security is written in TypeScript under Apache-2.0. SkillSpector has attracted 9% as many forks as stars, codex-security 8%. SkillSpector was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (ai-security), 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
| SkillSpector | codex-security | |
|---|---|---|
| GitHub stars | ★ 24K | ★ 11K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Python | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 2.1K | ⑂ 901 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick SkillSpector if
- You weight community size — 24K 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 codex-security if
- You want the codex-security feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and codex-security fits your workflow better
About SkillSpector
SkillSpector Security scanner for AI agent skills. Detect vulnerabilities, malicious patterns, and security risks before installing agent skills. Overview AI agent skills (used by Claude Code, Codex CLI, Gemini CLI, etc.) execute with implicit trust and minimal vetting. In the 31,132 skill analyzed subset of the research dataset, 26.1% of skills contain vulnerabilities and 5.2% show likely malicious intent . SkillSpector helps you answer: "Is this skill safe to install?" SkillSpector is part of the NVIDIA Verified Skills pipeline, which scans, evaluates, and signs agent skills before publication. Skills that…
read the full SkillSpector overview →
About codex-security
Codex Security @openai/codex security is a CLI and TypeScript SDK for defining security policy and finding, validating, and fixing security vulnerabilities in your code. 👉👉 See the Codex Security documentation for full documentation. Some cybersecurity requests and protected findings require approval through Trusted Access for Cyber. To join the program, visit chatgpt.com/cyber. Quick start Requires Node.js 22.13.0 or later and Python 3.10 or later. For CI, set OPENAI API KEY instead of signing in. Generate SECURITY.md Draft repository wide or component scoped SECURITY.md guidance for future scans: The command…
read the full codex-security overview →
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Frequently asked questions
Is SkillSpector or codex-security more popular?
SkillSpector has 23,886 GitHub stars and codex-security has 11,282. SkillSpector has the larger community by that measure.
Are SkillSpector and codex-security free?
Both are open source. SkillSpector is licensed under Apache-2.0 and codex-security under Apache-2.0. Neither carries a licence fee.
What is the difference between SkillSpector and codex-security?
SkillSpector is written in Python and codex-security in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, SkillSpector or codex-security?
Choose SkillSpector if you want the larger community (23,886 stars) or its Apache-2.0 licence terms. Choose codex-security if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.