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Memory leak: SDK event listeners never unsubscribed in App component #8258
Description
Problem
The TUI App component subscribes to 6 SDK events but never unsubscribes from them:
TuiEvent.CommandExecuteTuiEvent.ToastShowTuiEvent.SessionSelectSessionApi.Event.DeletedSessionApi.Event.ErrorInstallation.Event.UpdateAvailable
The sdk.event.on() method returns an unsubscribe function that is being ignored.
Code Location
packages/opencode/src/cli/cmd/tui/app.tsx - lines 557-616
Impact
- Event listeners accumulate over component lifecycle
- Closures retain references preventing garbage collection
- Memory growth in long-running sessions
- Potential duplicate event handling
Relates to #5363
Expected Behavior
Event listeners should be stored and unsubscribed in onCleanup:
const unsubs: (() => void)[] = []
unsubs.push(sdk.event.on(TuiEvent.CommandExecute.type, (evt) => {
command.trigger(evt.properties.command)
}))
// ... other listeners
onCleanup(() => {
unsubs.forEach((unsub) => unsub())
})
Activity
github-actions commentedon Jan 13, 2026
This issue might be part of a series of related memory leaks in the TUI. Please check:
All three are part of #3013 (general memory issues). You may want to coordinate fixes across these related issues to address the broader memory leak problem systematically.
github-actions commentedon Mar 27, 2026
To stay organized issues are automatically closed after 90 days of no activity. If the issue is still relevant please open a new one.