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What does `arethetypeswrong` (attw) detect and how do you fix false ESM/CJS packages?

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01

Understand the problem

Using arethetypeswrong / attw to audit dual packages: FalseESM, FalseCJS, CJSResolvesToESM, missing types condition, and the correct exports map.

publishingarethetypeswrong
02

Attempt it yourself

Sketch your approach before reading the solution — that's what interviews test.

Nudge consolestandby

Stuck? Beam a request up — the console returns a conceptual nudge that guides your logic without spoiling the implementation.

03

Study the solution

dual pkgCJS + ESM<line class="d-

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04

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