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Config Studio for Codex, from zero to pro

A free course on configuring Codex with Config Studio, from your first config.toml line to sandboxes, rules, hooks, the status line and an install script that merges into yours.

Config Studio for Codex7 lessons23 minBeginner to Pro6 videos
0 · Start7 lessons100 · Pro
Start with lesson 1Open Config Studio for Codex
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This course starts where you have never opened Config Studio for Codex and ends with a complete Codex setup you understand line by line, installed on your machine or shared with your team. Nothing is written to your disk until you run the script yourself.

Each lesson is short and does one job. Do them in order, or jump to the one you need.

What you will be able to do

  • Set your model and defaults in config.toml and read the exact file before it exists
  • Choose where Codex's commands may write and when it stops to ask
  • Know which config layer wins: requirements, flags, the project, a profile, your own file
  • Write rules for commands, test a command against them, and add hooks and AGENTS.md instructions
  • Pick and order the items of the Codex status line and terminal title
  • Add MCP servers, write skills and make custom agents
  • Start from a pack or the setup you have, review every file, and install or share the whole setup

Who it is for

Anyone who uses Codex in the terminal, the IDE or the app and wants to know what a setting does, which file it goes in, or why Codex ignores the one they set. You need nothing installed: the tool is a web page.

The lessons

Beginner
  1. 01Configure Codex with Config StudioSet your Codex model in config.toml with Config Studio for Codex, read the exact file it writes, and take it away as a file or an install script that merges.5 steps3 minVideo14% of the course
  2. 02Set Codex's sandbox and approvalsChoose where Codex's commands may write and when it stops to ask, with granular prompts, network access and a permission profile, and read the config.toml lines it writes.6 steps3 minVideo29% of the course
Intermediate
  1. 03Which Codex config layer wins, and why a setting is ignoredThe places Codex reads config.toml from, the order that decides which value applies, trusted projects, profiles as their own files and flags for one run, in Config Studio for Codex.5 steps3 minVideo43% of the course
  2. 04Codex rules, hooks and AGENTS.mdWrite Codex .rules for commands that are allowed, asked about or refused, test a command against them, add a hook to hooks.json and write AGENTS.md instructions, in Config Studio for Codex.4 steps3 minVideo57% of the course
  3. 05Customise the Codex status line and terminal titlePick and order the items of the Codex footer, such as the model, the context left, your usage limits and the git branch, set the terminal tab title, and copy the [tui] lines, in Config Studio for Codex.5 steps3 minVideo71% of the course
Advanced
  1. 06Codex MCP servers, skills and custom agentsAdd an MCP server to Codex's config.toml, write a SKILL.md Codex picks up on its own, make a custom agent in .codex/agents and set defaults for subagents, in Config Studio for Codex.4 steps3 minVideo86% of the course
Pro
  1. 07Install and share a Codex setupStart from a Config Studio for Codex starter pack or the setup you already have, review every file in the plan, install it with a script that sets your old files aside and merges into your config.toml, and save the plan to share with your team.5 steps5 min100% of the course
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