Use Codex to turn expected behavior into a Promptfoo eval suite.
Use Codex to make your app's actions and content available to Shortcuts, Siri, Spotlight...
Use Codex to instrument one Mac feature with Logger, run the app, and verify the action from...
Use Codex to migrate an existing SwiftUI app to Liquid Glass with iOS 26 APIs and Xcode 26.
Turn your use cases into focused apps for ChatGPT.
Use Codex to build a Mac-native SwiftUI app shell with a sidebar, detail pane, inspector...
Use Codex to scaffold, build, and debug SwiftUI apps for iPhone and iPad.
Use Codex to scaffold, build, and debug native Mac apps with SwiftUI.
Go from a mobile-app idea to a working Expo app with the dedicated plugin.
Catch regressions and potential issues before human review.
Give Codex a composable command for an API, log source, export, or team script.
Define a game plan and let Codex build and test it in a live browser.
Use Codex and XcodeBuildMCP to drive your app in iOS Simulator, capture evidence, and...
Build or update a web app, deploy a preview, and get a live URL.
Give Codex a durable objective for long-running work.
Explore the concept visually with ImageGen and build a first version of your idea.
Use Codex as a scored improvement loop to solve hard tasks.
Use code and other sources to automate docs updates.
Turn dense source material into a clear, reviewable learning report.
Use Codex-Spark for fast, focused UI iteration in an existing app.
Click through real product flows and log what breaks.
Use Codex to split an oversized SwiftUI screen into small subviews without changing behavior...
Remove dead code and modernize legacy patterns without changing behavior.
Migrate legacy stacks in controlled checkpoints.
Run repeatable workflows and verify the result.
Create a skill Codex can keep on hand for work you repeat.
Trace request flows, map unfamiliar modules, and find the right files fast.
Upgrade your app to the latest OpenAI API models.
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