The plain-English version
A new problem in behavior that previously worked.
Why it matters
A targeted regression test helps prevent a known bug from returning.
Let’s make it click
Adding search causes the completed-only filter to stop working.
Vibe Bro’s heads-up
Checking only the new feature can miss damage to an existing related behavior.
The docs behind it
Documentation links checked .
Editorial review · October 28, 2026
Supported: Read the full explanation, examples, and pitfalls; no material factual error identified. References are supporting reading, not a sentence-by-sentence source concordance.