StackedProgressTracker

Four coding agents working in parallel, in a dark surface with an orange accent. Nothing here is a component variant: the panel background, border, title colour, bar track and bar fill are all reached through the classNames and styles subparts — a completely different visual language without a fork.

Five cities counting down to their own midnight on January 1st, each row ticking once a second. The bar shows how much of the local year has already elapsed, and the trailing 0d 00:00:00 value proves name takes a ReactNode, not just a string — so a row can carry its own two-column layout.

Every status the tracker can render, in one static panel: two finished stages, a canary in flight, a queued migration waiting behind it, and a failed smoke test. This is the row vocabulary an operator has to be able to read at a glance.

A data ingestion tray docked to the lower right of the app shell. Four connectors stream in at once, each row advancing on its own; as a connector reaches 100% its bar and percentage give way to a success check. Icon-free, 11px labels and 3px bars — the density an operator watching a long-running import actually wants.

Seven queued exports with maxVisibleItems set to three, so the truncation control carries the rest. A long queue never grows the panel past the height its host allotted it.

The same panel with showStatusFilter turned on. The inline segmented bar buckets the rows into Not Started, In Progress, Completed and All, opening on In Progress, and showStatusFilterCounts puts the size of every bucket right on its option. A new incident pages in four seconds after the panel mounts — watch the counts move while the selected bucket stays put.

A CI matrix pinned to the top right of a terminal-flavoured shell, opening on All rather than In Progress. The buckets are relabelled Queued / Running / Finished through labels.statusFilterOptions — copy the dashboard's users recognise, without changing what each bucket actually matches. A retry job is scheduled three seconds in.

The tracker does not have to float. Here it sits inline in a settings column as a getting-started checklist, opening on Not Started so the list reads as "what is left". A newly unlocked step appears after five seconds, and filtering to Completed shows off the custom empty copy.

The controlled mode: the page owns the selection through statusFilter and onStatusFilterChange, so the summary button above the panel can jump straight to the failed batch. Clicking the segmented bar still works — it just reports upward instead of keeping its own state.