huytieu/COG-second-brain

Health v2 · maintenance only

Adoption not part of the score

1049 stars · 127 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

COG is a self-evolving second brain built from markdown files, Git, and AI agent skills, with 33 skills, 10 agents (6 workers plus 4 read-only verifiers), and a people CRM. It implements a closed-loop V-model verification lifecycle so workers never grade their own work, and integrates with Claude Code, Cursor, Kiro, Gemini CLI, Codex, and other markdown-reading agents.

Use cases

• manage a personal knowledge base with AI agents
• set up a second brain in obsidian with git sync
• run AI agent workflows with verification loops
• track contacts and relationships with a people CRM
• add reusable AI skills to claude code or cursor
• delegate tasks to worker agents with independent verifiers
• keep notes as plain markdown without vendor lock-in

When to choose

• you want a markdown-and-git-based second brain that works across multiple AI coding agents
• you need agent task execution with independent verification instead of self-grading
• you already use Obsidian, Claude Code, or Cursor and want agent skills layered on top

When to avoid

• you need a hosted database-backed knowledge management app
• you don't use any AI coding agents or CLI tools
• you want a turnkey product rather than a skills framework you configure yourself

Facets

framework · maturity active

agent-framework workflow-automation documentation markdown version-control chatbot developer-tools cli cross-platform second-brain claude-code cursor obsidian people-crm verification-harness agent-skills closed-loop self-evolving gemini-cli ai-agents knowledge-management automation nodejs

Member repositories

For agents

markdown · JSON · MCP: product_card(name="huytieu/COG-second-brain")