Reverse engineer a mechanism

Understand how a target application implements a mechanism well enough to reimplement it. Work from independent evidence and keep two things separate: what you verified on the artifact versus what you assumed from a secondary source or inference.

Mark every notable finding inline:

• verified — seen directly in source, a local artifact, or reproduced output.
• assumed — inferred, or drawn from a secondary source not confirmed on the artifact.

Replicating an assumed detail as if it were verified is where a reimplementation breaks; the annotation is what tells you which findings still need a test.