Every task in the engine's activity registry floats as a row under the
top bar once it is half a second old: its name, a progress bar (a sweep
while the amount of work isn't known), the count and what it is working
on, and a cross for the ones that can be cancelled. Three rows, then
"+N more". ui.inspect reports the same list as activity.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Andrey VyrodovandClaude Opus 5.5
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