Fix scroll jump issue when reading long completion messages in Agent Manager (#5903)#5904
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kevinvandijk merged 6 commits intoKilo-Org:mainfrom Feb 16, 2026
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Reset prevMessageCountRef when sessionId changes to ensure the first render of a session with existing messages triggers scrollToIndex. Without this, combinedMessages.length > prevMessageCountRef.current is false on initial render since the ref is seeded with the same value.
- Added followOutput={isAtBottom ? "smooth" : false} to Virtuoso component
- Enables auto-scroll when at bottom, disables when user scrolls up
- Fixes failing test in MessageList.spec.tsx
This was referenced Feb 16, 2026
This was referenced Feb 16, 2026
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Fixes #5903
Context
Fix scroll jump issue when reading long completion messages in Agent Manager. When a task in Agent Manager completes with a long completion message, if the user scrolls down to read more of the message, the view automatically jumps back to the top, making it impossible to read the full message.
Implementation
followOutputprop from Virtuoso in MessageList.tsxHow to Test
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