Have the AI write a plan file first, then build and test one piece at a time

1) Idea level: point the agent at existing apps ('make something similar, change this and that', or 'take the best of both') and ask for screens. 2) Have it write every conclusion into a plan document (MD/PDF); read, edit and question it, since agents lose context as it fills. 3) Ask for a development plan by stages. 4) Build one module (e.g. the server side), test it, freeze it, then add the next part; no one-shot 'build the whole app' prompts, and not micro-prompts either ('the right prompts'), specifying language and tech. 5) Have the agent role-play system architect, security expert and performance reviewer (plugins with preset rules) and review each other's work. Compile and run in Xcode/Android Studio, report bugs back ('Claude, I have this problem. Fix it'). Chaim uses Claude Code CLI; some developers use the Claude API, Codex or Cursor. A senior developer supervises throughout.

Bug-fix cycles that took days manually now take about an hour; overall cycles that took ages six months earlier take days or hours.