Lean on inference, annotate public API boundaries

Lean on inference, annotate public API boundaries | BeforeMerge Rules | BeforeMerge

Why this matters

Inference keeps internal code concise and DRY. Explicit annotations at exported boundaries act as a contract and prevent accidental, breaking signature changes.

// Bad — redundant locals, implicit public return
const count: number = items.length;
export function load(id) { return fetchUser(id); }
 
// Good — inferred locals, explicit public boundary
const count = items.length;
export function load(id: UserId): Promise<User> { return fetchUser(id); }

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Catch this automatically on every PR

Why this matters