What new tools have you started using lately to code or plan smarter?

I have used Claude Code in plan mode for some time. It forces me to stop and think before I type any code - yet the step-by-step chat often drags on and the final code still breaks in several places.

I keep hearing that Cursor gives stronger planning features or lets several agents work together, but I have not opened it yet.

Curious what works for you. Which tool or routine lets you map out or write software faster - you do not burn hours fixing whatever the AI just handed back?