Codex Prompts for Real Projects
A good Codex prompt gives the agent a clear goal, enough local context, boundaries, and verification steps. The best prompts sound like precise work tickets.
Bug Fix Prompt
State the bug, steps to reproduce, expected result, actual result, and affected files if known. Ask for the smallest fix and verification.
Refactor Prompt
Say what should improve and what behavior must stay unchanged. Refactors need stronger boundaries than feature prompts.
Testing Prompt
Name the feature, risk cases, test framework, and existing test style. Ask for behavior-focused tests instead of brittle implementation checks.
The Codex Prompt Generator can produce a clean version for your next task.