Codex Zero to Hero
Module 15: Codex for GitHub Issues, Branches, Pull Requests, and Reviews
A practical module for moving from concept to safe Codex execution.
Learning Outcomes
- Explain the topic in beginner-friendly language.
- Prompt Codex with context, constraints, and done-when criteria.
- Review output safely before publishing.
Safety Note
Use branches, backups, previews, and human review. Do not deploy untested code or commit secrets.
Module progress
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Lessons
Turn Ideas into GitHub Issues
By the end, learners can explain turn ideas into github issues, ask Codex for focused help, review the result, and decide the next safe step.
Ask Codex to Work From an Issue
By the end, learners can explain ask codex to work from an issue, ask Codex for focused help, review the result, and decide the next safe step.
Create Clean Branches and Commits
By the end, learners can explain create clean branches and commits, ask Codex for focused help, review the result, and decide the next safe step.
Write Better Pull Request Descriptions
By the end, learners can explain write better pull request descriptions, ask Codex for focused help, review the result, and decide the next safe step.
Review Diffs Like an Owner
By the end, learners can explain review diffs like an owner, ask Codex for focused help, review the result, and decide the next safe step.
Address Review Comments Safely
By the end, learners can explain address review comments safely, ask Codex for focused help, review the result, and decide the next safe step.
Module Capstone: Ship a Pull Request
By the end, learners can explain module capstone: ship a pull request, ask Codex for focused help, review the result, and decide the next safe step.
Module Project
Create a practical artifact for codex for github issues, branches, pull requests, and reviews: a prompt pack, checklist, issue brief, page draft, QA report, or deployment note.
Quiz
- What context should Codex inspect first?
- What should you review before accepting changes?
- What rollback step protects the work?
Answer key
Inspect relevant files and errors, review diffs and tests, and keep a backup, branch, or preview rollback plan.
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