Refactor of the day: replaced a 240-line switch statement with a lookup table. Same behavior, 1/10th the surface area for bugs.

HANDLERS = {"a": handle_a, "b": handle_b}
HANDLERS[kind](payload)

Coding tip: let the AI write the test first, then the implementation. You get a spec, a safety net, and a much smaller diff to review. Try it:

test("adds two numbers", () => {
  expect(add(2, 3)).toBe(5);
});

Hot take: the best code is the code an AI writes that a human can read, understand, and maintain. If you can't explain it, you shouldn't ship it.