diff --git a/internal/cloud/server-workbench-http.ts b/internal/cloud/server-workbench-http.ts
index 1b85bca4..2973c6aa 100644
--- a/internal/cloud/server-workbench-http.ts
+++ b/internal/cloud/server-workbench-http.ts
@@ -505,7 +505,11 @@ function factSessionSummary(session, facts = {}) {
   const messages = factMessagesForSession(session, facts);
   const traceStatus = normalizeTerminalStatus(trace?.status);
   const checkpointStatus = normalizeTerminalStatus(checkpoint?.status);
-  const status = normalizeStatus(turn?.status ?? checkpointStatus ?? traceStatus ?? session?.status);
+  const turnStatus = normalizeStatus(turn?.status);
+  // Terminal checkpoint/trace evidence is the turn lifecycle authority. A
+  // stale running turn row must not keep the visible timer running after the
+  // terminal event has already been projected.
+  const status = normalizeStatus(checkpointStatus ?? traceStatus ?? turnStatus ?? session?.status);
   const timingSource = checkpoint ?? (traceId ? null : session);
   const timing = factTimingProjection(timingSource, status);
   return {
@@ -528,9 +532,9 @@ function factSessionSummary(session, facts = {}) {
     turnSummary: turn ? {
       turnId: factTurnId(turn, traceId),
       traceId,
-      status: normalizeStatus(turn.status ?? status),
-      running: RUNNING_STATUSES.has(normalizeStatus(turn.status ?? status)),
-      terminal: TERMINAL_STATUSES.has(normalizeStatus(turn.status ?? status)) && !RUNNING_STATUSES.has(normalizeStatus(turn.status ?? status)),
+      status,
+      running: RUNNING_STATUSES.has(status),
+      terminal: TERMINAL_STATUSES.has(status) && !RUNNING_STATUSES.has(status),
       eventCount: projection?.lastProjectedSeq ?? trace?.eventCount,
       projection,
       projectionStatus: projection?.projectionStatus ?? null,
@@ -587,10 +591,12 @@ function factMessageDto(message, parts = [], facts = {}) {
   if (!messageId) return null;
   const traceId = safeTraceId(message?.traceId) ?? null;
   const role = textValue(message?.role) || "agent";
-  const status = normalizeStatus(message?.status);
   const turn = traceId ? factTurnForTrace(facts, traceId) : null;
   const checkpoint = traceId ? factCheckpointForTrace(facts, traceId) : null;
-  const timing = factTimingProjection(isAssistantLikeRole(role) ? turn ?? checkpoint ?? message : message, status);
+  const messageStatus = normalizeStatus(message?.status);
+  const checkpointStatus = isAssistantLikeRole(role) ? normalizeTerminalStatus(checkpoint?.status) : null;
+  const status = normalizeStatus(checkpointStatus ?? (isAssistantLikeRole(role) ? turn?.status : null) ?? messageStatus);
+  const timing = factTimingProjection(isAssistantLikeRole(role) ? checkpoint ?? turn ?? message : message, status);
   const text = projectionText(message?.text, message?.content, message?.message, message?.finalResponse);
   const normalizedParts = parts.length > 0
     ? [...parts].sort(compareFactPartsAsc).map((part) => factPartDto(part, messageId, traceId)).filter(Boolean)
@@ -652,7 +658,9 @@ function factTurnSnapshot({ turn = null, session = null, facts = {}, traceId, tu
   const assistantMessage = [...messages].reverse().find((message) => isAssistantLikeRole(message.role)) ?? null;
   const checkpoint = safeTrace ? factCheckpointForTrace(facts, safeTrace) : null;
   const trace = factTraceSnapshot(facts, safeTrace);
-  const status = normalizeStatus(turn?.status ?? normalizeTerminalStatus(checkpoint?.status) ?? normalizeTerminalStatus(trace.status) ?? session?.status);
+  const checkpointStatus = normalizeTerminalStatus(checkpoint?.status);
+  const traceStatus = normalizeTerminalStatus(trace.status);
+  const status = normalizeStatus(checkpointStatus ?? traceStatus ?? turn?.status ?? session?.status);
   const finalText = projectionText(turn?.finalResponse, turn?.assistantText, turn?.text, assistantMessage?.text);
   const timing = factTimingProjection(checkpoint, status);
   return {