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feat(sessions): add compact option to stale conversation cost warning #3154

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Merged
charlesvien merged 1 commit into from
Jul 5, 2026
Merged

feat(sessions): add compact option to stale conversation cost warning #3154

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6 changes: 6 additions & 0 deletions packages/ui/src/features/sessions/components/SessionView.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -643,6 +643,12 @@ export function SessionView({
lastActivityAt={staleGate.lastActivityAt}
costUsd={staleGate.costUsd}
onContinue={staleGate.onContinue}
onCompact={() => {
// Acknowledge so the gate clears and the dialog
// closes, then trigger the agent's manual compaction.
staleGate.onContinue();
onSendPrompt("/compact");
}}
onOpenChange={staleGate.onDialogOpenChange}
/>
<PromptInput
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15 changes: 12 additions & 3 deletions packages/ui/src/features/sessions/components/StaleConversationCostDialog.tsx
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Expand Up @@ -10,6 +10,8 @@ interface StaleConversationCostDialogProps {
/** Cumulative session cost so far, when the gateway reports it. */
costUsd: number | null;
onContinue: () => void;
/** Compact the history in place (runs `/compact`) instead of reloading it whole. */
onCompact: () => void;
onOpenChange: (open: boolean) => void;
}

Expand All @@ -19,6 +21,7 @@ export function StaleConversationCostDialog({
lastActivityAt,
costUsd,
onContinue,
onCompact,
onOpenChange,
}: StaleConversationCostDialogProps) {
const activity =
Expand All @@ -40,8 +43,9 @@ export function StaleConversationCostDialog({
message re-processes the whole conversation at full input price
instead of the ~10% cached rate
{costUsd !== null ? ` (≈$${costUsd.toFixed(2)} spent so far)` : ""}.
Starting a new conversation avoids the cost — continue only if you
need this thread's context.
Compacting summarizes the history so you keep this thread's context at
a fraction of the size, or start a new conversation to avoid the cost
entirely.
</AlertDialog.Description>

<Flex justify="end" gap="2" mt="4">
Expand All @@ -51,10 +55,15 @@ export function StaleConversationCostDialog({
</Button>
</AlertDialog.Cancel>
<AlertDialog.Action>
<Button variant="solid" size="1" onClick={onContinue}>
<Button variant="soft" color="gray" size="1" onClick={onContinue}>
Continue anyway
</Button>
</AlertDialog.Action>
<AlertDialog.Action>
<Button variant="solid" size="1" onClick={onCompact}>
Compact instead
</Button>
</AlertDialog.Action>
</Flex>
</AlertDialog.Content>
</AlertDialog.Root>
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