Research

A piece labelled needs-research runs one of the two steps below and records what it finds on the piece. A build whose correctness rests on an external fact runs the source check too.

Source check

Use when a decision depends on an external fact. Prefer, in order: official documentation; specifications or standards; first-party API references; the provider's own source code; official support or policy pages. Never base a consequential decision on a tutorial, a forum answer, marketing, or memory when a primary source exists.