#624 Neil: Build Your Own AI Second Brain With GPT-6 Astra in Codex

Build an AI second brain in Codex that remembers your context, priorities, projects, and writing style. This walkthrough shows how to set up the local project, connect useful apps, run audits, capture hidden knowledge, build an LLM Wiki, and visualize it all. 🧠

We'll Talk About:

• What an AI second brain is and how it works
• The Four Cs behind the system
• How to build the setup inside Codex
• How to add context and organize AGENTS.md
• How to connect external apps and fresh data
• How Audit, Level Up, and Grill Me improve the system
• How to build an LLM Wiki from your files
• How to visualize your knowledge with a 3D Brain

Keywords: AI Second Brain, GPT-6 Astra, Codex, AI Knowledge Management, LLM Wiki, AI Context Management, AI Tools.

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