Start with what you actually need: a simple page, a working web app, or a careful improvement to an existing site.
Begin with one page or one complete task. Add accounts, payments, databases, and dashboards only when the project truly needs them.
Use only the tools you need. Complete the basic task before adding more features or automation.
For a business page, portfolio, event, waitlist, course, or landing page.
Write down who the page is for, the one message they should understand, and the one button they should press.
Create the page in Google AI Studio and test every link, form, and mobile screen in the live preview.
Export the project to GitHub or ZIP. If it needs custom code, tests, or deployment work, give the repository to Codex or Claude Code. Choose one coding agent, not both.
Google AI Studio gives you generated files and a live preview, which makes it useful for trying the layout and interactions before touching a real repository.
Use Codex after export when the work belongs in a real repository and needs careful edits, commands, tests, or release checks.
Use Claude Code instead of Codex if it fits your workflow better. It can read the project, edit files, and run commands from the repository.
For a calculator, dashboard, directory, internal tool, or app idea.
Name one user, what they enter, and the result the app should return.
Build and test the screens in Google AI Studio with sample data first.
Export the code. Use Codex or Claude Code to add only the backend, database, login, tests, and deployment the working task actually needs.
The live preview makes the user flow visible early, before a database or production service makes changes slower and riskier.
Use it on the exported repository for data models, APIs, authentication, test coverage, and deployment checks.
Choose this instead of Codex if you prefer its workflow. Keep the same narrow task, tests, and review process.
For a site with broken behavior, weak mobile layout, slow loading, or a design that needs careful improvement.
Give Codex or Claude Code the repository, a screenshot, the exact problem, and what must not change. Ask for an audit before edits.
Fix one part at a time. Review the changed files and run the existing build and tests after every step.
Check the real page on a phone, including loading, empty, success, and error states, before deployment.
Start with an audit, then ask for one bounded change with validation instead of a full redesign or refactor.
Use one coding agent consistently for the change so context, tests, and file ownership stay clear.
Use a separate preview when you want to compare a new layout before changing the real application.
A first version should help one person finish one important task.
Test the screens and wording with sample data before adding accounts, databases, and paid services.
Export the project, keep secrets on the server, run tests, and inspect changes before deployment.
Plans change. Check these official pages before choosing a tool for important work.