Codex (OpenAI) Tool Guide
Updated July 2026
Codex is OpenAI's coding agent for desktop and CLI workflows. PromptDC Desktop rewrites selected requests in the Codex app and detects Codex CLI prompts in the terminal before you press Enter.
Codex (OpenAI) tool guide
Rewrite prompts in place inside Codex (OpenAI).
Works everywhere
PromptDC Desktop works in any app on Mac or Windows. The Chrome extension covers any website.
In-Place Rewrites
Transform rough notes into clear, structured instructions instantly.
See PromptDC in Action
This demo shows the standard PromptDC flow, and it works the same way in Codex (OpenAI).
Why Use PromptDC with Codex (OpenAI)?
What changes when you rewrite prompts with PromptDC inside Codex (OpenAI).
Rewrite in Codex
Select a draft in the Codex app, press Command+Shift+E on Mac or Ctrl+Shift+E on Windows, review the rewrite, and choose Replace.
Codex CLI Detection
PromptDC Desktop detects Codex CLI and tailors the selected terminal prompt before you press Enter. It does not run the CLI or send commands.
Integrated Terminal
Rewrite Codex CLI prompts in the ChatGPT/Codex integrated terminal or another verified terminal without leaving the workflow.
Codex Coding Briefs
Use the Code profile to add files, constraints, acceptance criteria, and required checks to a rough Codex request.
Reusable Repository Rules
Use Always Include to carry repository conventions, protected files, and required commands into each Codex rewrite.
Formats and Languages
Choose Text, JSON, XML, or YAML for the rewritten Codex request, and select its output language.
Before and after prompts for Codex (OpenAI)
See how specific context, constraints, and outcomes turn a rough request into a prompt Codex (OpenAI) can act on.
Implement saved searches
Before PromptDC
Add saved searches.
After PromptDC
Implement saved searches in this Next.js repository. Inspect current URL filters and database conventions first. Add create, rename, apply, and delete for signed-in users. Preserve public search URLs and add no state library. Run focused tests, typecheck, and note migration steps.
Why this is better: A discovery step, feature surface, compatibility constraints, and checks keep Codex focused.
Review a risky patch
Before PromptDC
Check my PR for bugs.
After PromptDC
Review the current git diff for regressions. Prioritize auth, data loss, concurrency, and API compatibility. Trace changed call sites as needed; do not edit files. Report severity, file and line, and a failure scenario. If none, state remaining test gaps.
Why this is better: Review priorities and evidence requirements produce actionable findings instead of generic advice.
Upgrade a dependency
Before PromptDC
Upgrade Zod to the latest version.
After PromptDC
Upgrade Zod to a repository-compatible stable version. Inventory imports, schema patterns, and lockfile ownership. Follow official migration guidance and preserve error responses. Change only what the upgrade requires. Run tests and typecheck; list remaining behavior risks.
Why this is better: Compatibility, scope, preserved behavior, and validation frame the upgrade safely.
Frequently Asked Questions
Learn shortcuts & usage?
Read the shortcuts docs
Need assistance with Codex (OpenAI)?
Contact help & support
Write better with AI
Enhance any text you select on the desktop, on the web, in your editor or terminals.
Download PromptDC