Skip to content

Learn

Guides, tutorials and articles on building software with an AI agent that edits real files. Written by the Codexa team against the product as it ships.

Start with these

  • guidesGetting started2 min read

    Build your first app

    A complete beginner walkthrough - create a React project from a template, shape it with the agent, run the preview and deploy it.

    beginner30 min
  • guidesProjects2 min read

    Build a SaaS

    Structure a multi-tenant SaaS on Codexa - a React frontend, a Node + Express API, email/password auth, workspaces and Stripe or Razorpay billing.

    intermediate2 hours
  • tutorialsAgent1 min read

    Fix a failing build with Fix mode

    Introduce a type error on purpose, watch the sandbox catch it, and let the agent repair it within its two-attempt limit.

    beginner15 min
  • tutorialsAgent1 min read

    Review and revert an AI run

    Use the automatic snapshot taken before every run to inspect a diff, keep part of it, and revert the rest.

    beginner10 min
  • blogEngineering2 min read

    How the sandbox isolates your project

    Generated code never runs inside Codexa's web server. A look at the runner service, Linux namespaces, cgroups and the preview proxy.

  • blogPractice2 min read

    Prompting patterns that produce maintainable code

    Five habits that turn a code-writing agent from a slot machine into a colleague, learned from building and using Codexa's own agent.

Looking for reference material?

The documentation covers every feature, and the API pages describe the HTTP endpoints.