huytieu/COG-second-brain
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Self-evolving second brain with 35 AI skills, 10 agents, and people CRM. Closed-loop harness: a V-model verification lifecycle where the worker never grades its own homework. Plus paired anti-slop design skills for marketing and product UI. Works with Claude Code, Cursor, Kiro, Gemini CLI, Codex.
About
Cognition + Obsidian + Git — A self-evolving second brain powered by AI agents, markdown files, and version control. No database, no vendor lock-in — just .md files that think.
Works with Claude Code • Cursor • Kiro • Gemini CLI • OpenAI Codex • any AI that reads markdown > Inspired by Garry Tan's gstack and gbrain
New to COG? Watch the 2-minute walkthrough to see it in action.
Done — COG is personalized and ready in 2 minutes. See SETUP.md for optional config (Git sync, iCloud, Obsidian Tasks, etc.).
COG ships a full Claude Code surface plus core native surfaces for Kiro and Gemini CLI, with AGENTS.md as the universal fallback for Codex and other…
Excerpted from github.com/huytieu/COG-second-brain
Latest metrics
| Stars | 1.3k | 2026-10-26 |
|---|---|---|
| Forks | 160 | 2026-10-26 |
| Commits | 73 | 2026-10-26 |
| Releases | 8 | 2026-10-26 |
| Watchers | 18 | 2026-10-26 |
| Open issues | 9 | 2026-10-26 |
| Open PRs | 3 | 2026-10-26 |