Notebook 01 · Technology

Codex Learning

A working notebook for learning Codex—from the first useful prompt to reliable workflows, automation, and building alongside an AI coding partner.

Newest first

Published notes

10 entries in this notebook.

Codex Is Not Just Faster Coding: Three Ways It Expands What One Person Can Build

Use Codex to turn unclear requirements into working results, learn unfamiliar technology through real projects, and expand what one person can complete.

Read the guide →
Use Jev to Route Work Between Codex, Claude, Gemini, and Grok

Set up a Windows routing layer in which Jev classifies a task and a local dispatcher sends it to an already-installed coding agent.

Read the guide →
How to Name and Manage Codex Subagents

Define clear Codex agent roles, give each role a useful name, delegate bounded work, and keep permissions separate from job descriptions.

Read the guide →
Building a Codex Control Center: Managing Multiple AI Projects from One Workspace

Organize multiple independent repositories beneath one Codex-visible workspace while preserving project instructions, Git history, permissions, and secrets.

Read the guide →
Markdown Files for Codex: A Beginner's Guide

Learn what .md files are, which Markdown files Codex treats specially, and how to use AGENTS.md, SKILL.md, README.md, and learning notes without mixing their roles.

Read the guide →
How to Use Codex Remote from Your Phone

Connect a trusted computer to Codex Remote so you can start tasks, guide work, approve actions, and review results from the ChatGPT mobile app.

Read the guide →
How to Learn Codex in the Easy Way

Learn Codex through one small, real project: inspect the workspace, make a safe change, verify it, keep a learning log, and turn repeated work into a skill.

Read the guide →
How to Create a Personal SPMO Rebalancing Skill

Design a reusable Codex skill that finds the largest initial SPMO stock weight after each rebalance without confusing the workflow with the data.

Read the guide →
From an Idea to Work Codex Can Complete

A beginner’s framework for turning an idea into a project, workable tasks, agent assignments, and repeatable skills.

Read the workflow →
A Simple Codex Project Hierarchy for Websites

Use AGENTS.md files for scoped instructions and page.tsx files for the webpages Codex helps you maintain.

Read the tip →