Codex

If you’re using Codex as your AI coding agent, follow these steps so the Dagster skills are available. Once they’re installed and enabled, you can use prompts like /dagster-expert in later lessons.

1. Install Codex

Install Codex from the official setup guide for your environment and sign in.

2. Add the Dagster skills

The npx command comes with Node.js. If you don't have it installed, install Node.js first.

Install using the npx skills command-line:

npx skills add dagster-io/skills

npx install

3. Ensure the Dagster skills are enabled

In Codex settings or the skill list, confirm that the Dagster-related skills are enabled. You want at least:

  • dagster-expert: for project structure, dg CLI, and Dagster patterns
  • dignified-python: for general Python quality

Once they’re enabled, you can invoke them in your prompts. Type the skill name prefixed with / at the start of your message:

/dagster-expert create a new Dagster project called university

You’ll use this pattern throughout the rest of the course.

Codex skill

You’re set

With the Dagster skills installed and enabled, you’re ready for Lesson 4. In later lessons you’ll use the skills so the agent follows Dagster best practices and uses dg for scaffolding and validation.