Checklist for library authors: explicit return types, no satisfies leaks, verbatimModuleSyntax re-exports, and tools (publint, attw, tsdown).
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How do you author library types that pass `isolatedDeclarations` for `oxc` / `tsdown` builds?
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isolatedDeclarationspublishing
02
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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.
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Dossier 59 of 70 decoded in the TypeScript track. One more won't hurt.