task(jat-2rd47): Add Resume option to TasksOpen right-click context menu

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: joewinke

ide/src/lib/components/sessions/TasksOpen.svelte

@@ -85,7 +85,8 @@
 		onTaskClick = () => {},
 		onAddTask = null,
 		onFilterCountsChange = (_counts: Record<string, number>) => {},
-		mobile = false
+		mobile = false,
+		resumableTasks = new Map<string, string>()
 	}: {
 		tasks: Task[];
 		loading: boolean;
@@ -104,6 +105,8 @@
 		onAddTask?: (() => void) | null;
 		onFilterCountsChange?: (counts: Record<string, number>) => void;
 		mobile?: boolean;
+		/** Map of taskId → agentName for tasks with resumable sessions */
+		resumableTasks?: Map<string, string>;
 	} = $props();
 
 	// Alt key tracking for agent picker
@@ -1234,11 +1237,12 @@
 	let resumingTaskId = $state<string | null>(null);
 
 	async function handleResumeTask(task: Task) {
-		if (!task.assignee) return;
+		const agentName = task.assignee || resumableTasks.get(task.id);
+		if (!agentName) return;
 		closeContextMenu();
 		resumingTaskId = task.id;
 		try {
-			const response = await fetch(`/api/sessions/${task.assignee}/resume`, {
+			const response = await fetch(`/api/sessions/${agentName}/resume`, {
 				method: 'POST',
 				headers: { 'Content-Type': 'application/json' },
 			});
@@ -1250,7 +1254,7 @@
 					addToast({ message: 'Resume failed', type: 'error', details: data.message || data.error || 'Could not resume session' });
 				}
 			} else {
-				addToast({ message: 'Session resumed', type: 'success', details: `Resuming ${task.assignee}'s session` });
+				addToast({ message: 'Session resumed', type: 'success', details: `Resuming ${agentName}'s session` });
 				broadcastTaskEvent('session-resumed', task.id);
 			}
 		} catch (err) {
@@ -2002,8 +2006,8 @@
 			<span>Launch</span>
 		</button>
 
-		<!-- Resume (only for tasks with a previous assignee) -->
-		{#if ctxTask.assignee}
+		<!-- Resume (only for tasks with a resumable session) -->
+		{#if ctxTask.assignee || resumableTasks.has(ctxTask.id)}
 			<button class="task-context-menu-item" onmouseenter={() => { statusSubmenuOpen = false; prioritySubmenuOpen = false; epicSubmenuOpen = false; }} onclick={() => { const t = ctxTask!; handleResumeTask(t); ctxTask = null; }} disabled={resumingTaskId === ctxTask.id}>
 				<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
 					<path d="M5.25 5.653c0-.856.917-1.398 1.667-.986l11.54 6.347a1.125 1.125 0 0 1 0 1.972l-11.54 6.347a1.125 1.125 0 0 1-1.667-.986V5.653Z" />

ide/src/routes/api/tasks/sessions/+server.ts

@@ -243,8 +243,8 @@ export const POST: RequestHandler = async ({ request }) => {
 			return json({ sessions: {} });
 		}
 
-		// Limit to prevent abuse
-		const limitedTaskIds = taskIds.slice(0, 100);
+		// Limit to prevent abuse (scanning /tmp is O(files) not O(taskIds), so this is generous)
+		const limitedTaskIds = taskIds.slice(0, 500);
 		const taskIdSet = new Set(limitedTaskIds);
 
 		const projectPath = getProjectPath();

ide/src/routes/tasks/+page.svelte

@@ -1069,6 +1069,37 @@
 		);
 	}
 
+	// Map of taskId → agentName for tasks with previous sessions (passed to TasksOpen context menu)
+	let resumableTasks = $state(new Map<string, string>());
+
+	async function fetchResumableTasks() {
+		try {
+			const taskIds = openTasks
+				.filter(t => t.status === 'open' && t.issue_type !== 'epic')
+				.map(t => t.id);
+			if (taskIds.length === 0) return;
+			const response = await fetch('/api/tasks/sessions', {
+				method: 'POST',
+				headers: { 'Content-Type': 'application/json' },
+				body: JSON.stringify({ taskIds })
+			});
+			if (!response.ok) return;
+			const data = await response.json();
+			const map = new Map<string, string>();
+			for (const [taskId, sessions] of Object.entries(data.sessions || {})) {
+				const arr = sessions as Array<{ agentName: string; sessionId: string | null; isOnline: boolean }>;
+				// Find the first offline session (resume API will locate the session ID)
+				const resumable = arr.find(s => !s.isOnline);
+				if (resumable) {
+					map.set(taskId, resumable.agentName);
+				}
+			}
+			resumableTasks = map;
+		} catch {
+			// Silent fail
+		}
+	}
+
 	// Critical data for initial render (tasks + sessions clear the loading skeleton)
 	async function fetchCriticalData() {
 		await Promise.all([
@@ -1088,6 +1119,7 @@
 			fetchCompletedMemory(),
 			fetchBrowserSessions(),
 			fetchTaskImages(),
+			fetchResumableTasks(),
 		]);
 	}
 
@@ -2211,6 +2243,7 @@
 													{taskIntegrations}
 													{taskImages}
 													{epicsReadyForVerification}
+													{resumableTasks}
 													highlightedTaskIds={isSwarmHovered || isSwarmSpawning ? launchableIds : new Set()}
 													onSpawnTask={spawnTask as any}
 													onRetry={fetchTasks}
@@ -2279,6 +2312,7 @@
 													{projectColors}
 													{taskImages}
 													{epicsReadyForVerification}
+													{resumableTasks}
 													onSpawnTask={spawnTask as any}
 													onRetry={fetchTasks}
 													onTaskClick={(taskId) =>

tools/scripts/jat-complete-bundle

@@ -429,9 +429,10 @@ fi
 # Ensure required fields are present
 BUNDLE_JSON=$(echo "$BUNDLE_JSON" | jq \
     --arg taskId "$TASK_ID" \
+    --arg taskTitle "$TASK_TITLE" \
     --arg agentName "$AGENT_NAME" \
     --arg mode "$COMPLETION_MODE" \
-    '. + {taskId: $taskId, agentName: $agentName, completionMode: $mode}')
+    '. + {taskId: $taskId, taskTitle: $taskTitle, agentName: $agentName, completionMode: $mode}')
 
 # Add nextTaskId if provided
 if [[ -n "$NEXT_TASK_ID" ]]; then