The idea is, you want to build up the right context before starting development. I will either describe exactly what I want to build, or I ask the agent for guidance on different approaches. Sometimes I’ll even do this in a separate Claude (not Claude Code) conversation, which I feel works a bit faster. Once we have an approach, I will ask it to create an implementation plan in a markdown file, I clear context and then tell it to implement the plan.
Check out the “brainstorming” skill and the “git worktrees” skill. They will usually trigger the planning -> implementation workflow when the work is complex enough.