No red flags found in any of the 11 categories — no credential harvesting, no data exfiltration, no curl-pipe-shell installer. Scanned against the SlowMist agent-security taxonomy, refreshed every 8 hours. Full audit →
by huytieu · Codex Skill · ★ 923
Last updated: · Indexed by AgentSkillsHub · Auto-synced every 8h
🔒 Is COG-second-brain safe to install? View the security audit →
COG: The Agentic Second Brain That Actually Self-Evolves Cognition + Obsidian + Git — A self-evolving second brain powered by AI agents, markdown files, and version control. No database, no vendor lock-in — just files that think. Quick Start SETUP.md 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. Quick Start 1. Clone & enter the repo: 2. Run onboarding in your agent:
| Stars | 923 |
| Forks | 108 |
| Language | HTML |
| Category | Codex Skill |
| License | MIT |
| Quality Score | 67.8698367479663/100 |
| Open Issues | 2 |
| Last Updated | 2026-08-18 |
| Created | 2025-10-15 |
| Platforms | claude-code, cli, codex, gemini |
| Est. Tokens | ~19k |
These tools work well together with COG-second-brain for enhanced workflows:
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COG-second-brain is Self-evolving second brain with 33 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 des. It is categorized as a Codex Skill with 923 GitHub stars.
COG-second-brain is primarily written in HTML. It covers topics such as agent-loop, agent-plugins, agent-skills.
You can find installation instructions and usage details in the COG-second-brain GitHub repository at github.com/huytieu/COG-second-brain. The project has 923 stars and 108 forks, indicating an active community.
COG-second-brain is released under the MIT license, making it free to use and modify according to the license terms.
The top alternatives to COG-second-brain on Agent Skills Hub include obsidian-claude-pkm, agent-second-brain, pro-workflow. Each offers a different approach to the same problem space — compare them side-by-side by stars, quality score, and community activity.