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    "title": "COG Second Brain (Library)",
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    "article": "\n# COG Second Brain\n\nA self-evolving second brain system combining AI agents with markdown files and version control. COG = Cognition + Obsidian + Git.\n\n**Source:** [COG Second Brain](https://github.com/huytieu/COG-second-brain) by Huy Tieu\n\n## Overview\n\nCOG Second Brain is a privacy-first, local-first knowledge management methodology that uses pure markdown files with Git version control. It provides a structured evolution cycle from daily capture through monthly knowledge consolidation, personalized through role packs.\n\n## Process Files\n\n| Process | File | Description |\n|---------|------|-------------|\n| Main Orchestrator | `cog-orchestrator.js` | Full lifecycle: setup, onboarding, daily/weekly/monthly cycles |\n| Knowledge Capture | `cog-knowledge-capture.js` | Braindump, URL dump, meeting transcript processing |\n| Intelligence Cycle | `cog-intelligence-cycle.js` | Daily brief, team brief, comprehensive analysis |\n| Reflection & Synthesis | `cog-reflection-synthesis.js` | Weekly check-in, knowledge consolidation, monthly synthesis |\n| Vault Management | `cog-vault-management.js` | Update COG, self-healing, cross-reference maintenance |\n\n## Agents\n\n| Agent | Role |\n|-------|------|\n| vault-architect | Vault structure design and maintenance |\n| knowledge-curator | Content classification and curation |\n| intelligence-analyst | News and source verification |\n| team-synthesizer | Cross-platform integration |\n| reflection-coach | Pattern analysis and reflection |\n| framework-builder | Knowledge consolidation |\n| meeting-analyst | Transcript processing |\n| role-advisor | Role pack customization |\n\n## Skills\n\n| Skill | Purpose |\n|-------|---------|\n| onboarding | Initial vault setup and role pack configuration |\n| braindump-capture | Raw thought capture with domain classification |\n| daily-intelligence | Personalized verified news briefs |\n| url-extraction | URL insight extraction with credibility scoring |\n| weekly-reflection | Cross-domain pattern analysis |\n| knowledge-consolidation | Framework building from scattered notes |\n| team-intelligence | Cross-platform team briefs |\n| meeting-processing | Transcript to decisions and action items |\n\n## Vault Structure\n\n```\ncog-vault/\n  00-inbox/        # Profiles, interests, integrations\n  01-daily/        # Briefs & check-ins\n  02-personal/     # Private braindumps\n  03-professional/ # Professional notes & strategy\n  04-projects/     # Per-project tracking\n  05-knowledge/    # Consolidated frameworks\n```\n\n## Evolution Cycle\n\n1. **Daily capture** - Braindump raw thoughts, classify by domain\n2. **Daily intelligence** - Personalized verified news\n3. **Daily team sync** - Cross-reference GitHub/Linear/Slack/PostHog\n4. **Meeting processing** - Extract structured decisions/action items\n5. **Weekly reflection** - Pattern analysis across domains\n6. **Weekly deep-dive** - Comprehensive strategic analysis\n7. **Monthly synthesis** - Scattered notes become consolidated frameworks\n\n## Role Packs\n\nProduct Manager, Engineering Lead, Engineer, Designer, Founder, Marketer, Custom\n\n## Key Principles\n\n- No vendor lock-in (pure markdown + Git)\n- Privacy-first, local-first\n- 7-day freshness on intelligence sources\n- 95%+ source accuracy\n- Strict domain separation\n- Self-healing cross-references\n- Content-safe updates (framework separates from personal data)\n\n## Quick Start\n\n```bash\n# Initialize vault and onboard\nbabysitter run:create --process methodologies/cog-second-brain/cog-orchestrator \\\n  --input '{\"userName\":\"Alex\",\"rolePack\":\"engineer\",\"cycleMode\":\"setup\"}'\n\n# Daily cycle\nbabysitter run:create --process methodologies/cog-second-brain/cog-orchestrator \\\n  --input '{\"userName\":\"Alex\",\"rolePack\":\"engineer\",\"cycleMode\":\"daily\"}'\n\n# Weekly cycle\nbabysitter run:create --process methodologies/cog-second-brain/cog-orchestrator \\\n  --input '{\"userName\":\"Alex\",\"rolePack\":\"engineer\",\"cycleMode\":\"weekly\"}'\n\n# Full lifecycle\nbabysitter run:create --process methodologies/cog-second-brain/cog-orchestrator \\\n  --input '{\"userName\":\"Alex\",\"rolePack\":\"engineer\",\"cycleMode\":\"full\"}'\n```\n",
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