Comparison
Anthropic Cybersecurity Skills vs ECC
ECC has more GitHub stars (281,307 vs 34,558). ECC was updated more recently (last commit 1d ago). Data comes straight from GitHub and refreshes daily.
Anthropic Cybersecurity Skills
817 structured cybersecurity skills for AI agents · Mapped to 6 frameworks: MITRE ATT&CK, NIST CSF 2.0, MITRE ATLAS, D3FEND, NIST AI RMF & MITRE F3 (Fight Fraud) ·…
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npx skills add mukul975/Anthropic-Cybersecurity-Skills
ECC
The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.
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/plugin marketplace add https://github.com/affaan-m/ECC| Metric | Anthropic Cybersecurity Skills | ECC |
|---|---|---|
| Type | MCP server | MCP server |
| GitHub stars | 34,558 | 281,307 |
| Stars, last 7 days | +56 | +1,108 |
| Forks | 4,214 | 41,827 |
| Upvotes | 0 | 1 |
| Language | Python | JavaScript |
| License | Apache-2.0 | MIT |
| Last commit | 1mo ago | 1d ago |
| Created | Feb 2026 | Jan 2026 |
| Categories | Security, AI & LLM tooling, Dev tools | AI & LLM tooling, Memory & knowledge, Security |