Codex Zero to Hero
Module 13: Codex for Debugging and Fixing Bugs
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
0/7 lessons complete – 0% complete
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Lessons
Give Codex Reproduction Steps
By the end, learners can explain give codex reproduction steps, ask Codex for focused help, review the result, and decide the next safe step.
Read Error Messages
By the end, learners can explain read error messages, ask Codex for focused help, review the result, and decide the next safe step.
Debug Frontend Layout Problems
By the end, learners can explain debug frontend layout problems, ask Codex for focused help, review the result, and decide the next safe step.
Debug Build and Dependency Problems
By the end, learners can explain debug build and dependency problems, ask Codex for focused help, review the result, and decide the next safe step.
Debug API and Environment Variable Issues
By the end, learners can explain debug api and environment variable issues, ask Codex for focused help, review the result, and decide the next safe step.
Ask for Root Cause, Fix, and Regression Test
By the end, learners can explain ask for root cause, fix, and regression test, ask Codex for focused help, review the result, and decide the next safe step.
Module Capstone: Bug Fix Report
By the end, learners can explain module capstone: bug fix report, ask Codex for focused help, review the result, and decide the next safe step.
Module Project
Create a practical artifact for codex for debugging and fixing bugs: 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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