This tool reflows comments in KDoc; either on a file or recursively over nested folders, as well as an IntelliJ IDE plugin where you can reflow the current comment around the cursor. Here's an example ...

Nearly annihilated during World War II, Saint-Malo has long been a beacon of maritime adventure—and potent rebellion. Here’s how to experience it. Saint-Malo, an historic seaside town in Brittany, is ...