Link: github.com/openai/codex-plug…
And if you want to get my full free Claude course:
- Go to simplifyingai.co
- Subscribe free by just writing your email.
- Open my welcome email and get the free resources.
@dr_cintas (2026-05-13) shares a short promotional post linking to github.com/openai/codex-plug… and offering a “full free Claude course.” To access it, followers are instructed to visit simplifyingai.co, subscribe with their email, then open the welcome email to retrieve the free course resources.
Link: github.com/openai/codex-plug…
And if you want to get my full free Claude course: