---
name: "Run a self-evolving markdown second brain with COG"
slug: "run-a-self-evolving-markdown-second-brain-with-cog"
description: "Use COG to onboard a markdown-based second brain with agent skills for braindumps, briefs, reviews, research, product work, and verifier-backed workflows."
github_stars: 803
verification: "security_reviewed"
source: "https://github.com/huytieu/COG-second-brain"
author: "huytieu"
publisher_type: "individual"
category: "Templates & Workflows"
framework: "Multi-Framework"
tool_ecosystem:
  github_repo: "huytieu/COG-second-brain"
  github_stars: 803
---

# Run a self-evolving markdown second brain with COG

Use COG to onboard a markdown-based second brain with agent skills for braindumps, briefs, reviews, research, product work, and verifier-backed workflows.

## Prerequisites

Git, a markdown-reading or skill-aware agent runtime such as Claude Code, Cursor, Kiro, Gemini CLI, or Codex; optional Obsidian

## Installation

Install or set up from the source-backed instructions:

Clone https://github.com/huytieu/COG-second-brain, open the folder in the chosen agent runtime, and ask the agent to run onboarding. Claude Code uses .claude/skills, Kiro uses .kiro/powers, Gemini CLI uses .gemini commands and skills, and other agents can follow AGENTS.md.

- Source: https://github.com/huytieu/COG-second-brain

## Documentation

- https://github.com/huytieu/COG-second-brain

## Source

- [Agent Skill Exchange](https://agentskillexchange.com/skills/run-a-self-evolving-markdown-second-brain-with-cog/)