Get the superpowers plugin and then ask Claude to design and document the system. It will go into brainstorming mode and ask you a lot of questions. The end result will be a markdown file. Then get another agent (maybe ChatGPT) to critique and improve the design (upload the markdown file in the web version). Then give it back to Claude and have it critique and improve. Last step, make Claude analyze the design and then document a step by step implementation guide. After that turn Claude code loose on implementation. Those techniques have been working for me when doing a project from scratch.