Why we reach for TypeScript first

When a codebase is going to be touched by four engineers across many months, types are the cheapest documentation you will ever write. They travel with the code and never go stale.

The compiler is a teammate

A red squiggle in the editor is a code review that happens before the code is even saved. That immediacy changes how confidently we refactor.

• Model your domain with types before wiring up the UI.
• Prefer narrow types that make invalid states impossible.
• Let inference do the heavy lifting, annotate the boundaries.