Build garage · 6 min
Tracing detective
Find the broken span and lock the fix.
Arcade: 0 XP · 0d streak — clever clears earn up to ★★★.
Missions + free play. On phones: swipe missions, expand Controls when needed.
Sandbox · deep mode
Tracing detective
Read the spans, find the broken step, lock the fix — on-call practice.
Open Wrong citation — tap the broken retrieve span and pick the fix.
User got cookie bake time = 3 hours
Tap a span to inspect.