About slopstopper/plumb-line
Every value in a program came from somewhere: a database, an API call, a test fixture, a default, a guess. Once it is sitting in a variable they all look the same. That is how a stubbed service answers "success" and the tests go green, how a guessed field flows into a report, and how a fallback an agent wrote to get a test passing ends up behind the dashboard, weeks after anyone remembers it is a fallback.