diff --git a/packages/views/issues/components/comment-trigger-chips.tsx b/packages/views/issues/components/comment-trigger-chips.tsx
index 81cff0017a..3ade3559e3 100644
--- a/packages/views/issues/components/comment-trigger-chips.tsx
+++ b/packages/views/issues/components/comment-trigger-chips.tsx
@@ -46,16 +46,19 @@ function sourceLabel(source: string, t: IssuesT): string {
   }
 }
 
-function sourceReason(agent: CommentTriggerPreviewAgent, t: IssuesT): string {
+// Assignee / @mention reasons are intentionally omitted: the header
+// (name · source) already says why they fire, so a reason line there would
+// just restate it. Only the squad-leader link (non-obvious) and the unknown
+// fallback carry information the header doesn't.
+function sourceReason(agent: CommentTriggerPreviewAgent, t: IssuesT): string | null {
   switch (agent.source) {
     case "issue_assignee":
-      return t(($) => $.comment.trigger_reason_issue_assignee, { name: agent.name });
     case "mention_agent":
-      return t(($) => $.comment.trigger_reason_mention_agent, { name: agent.name });
+      return null;
     case "mention_squad_leader":
-      return t(($) => $.comment.trigger_reason_mention_squad_leader, { name: agent.name });
+      return t(($) => $.comment.trigger_reason_mention_squad_leader);
     default:
-      return agent.reason || t(($) => $.comment.trigger_reason_unknown, { name: agent.name });
+      return agent.reason || t(($) => $.comment.trigger_reason_unknown);
   }
 }
 
@@ -92,10 +95,12 @@ function TriggerAgentTooltipBody({
         <div>{t(($) => $.comment.trigger_click_to_restore)}</div>
       ) : (
         <>
-          <div>
-            {sourceReason(agent, t)}
-            {presenceLine ? ` ${presenceLine}` : ""}
-          </div>
+          {(() => {
+            // Reason (when present) and presence share one line; either may be
+            // absent, so join only the parts that exist to avoid a stray space.
+            const line = [sourceReason(agent, t), presenceLine].filter(Boolean).join(" ");
+            return line ? <div>{line}</div> : null;
+          })()}
           <div className="text-muted-foreground">{t(($) => $.comment.trigger_click_to_skip)}</div>
         </>
       )}
diff --git a/packages/views/locales/en/issues.json b/packages/views/locales/en/issues.json
index b54c5e4319..8dd7ee6a16 100644
--- a/packages/views/locales/en/issues.json
+++ b/packages/views/locales/en/issues.json
@@ -282,19 +282,17 @@
     "trigger_skipped_label": "Skipped",
     "trigger_wont_trigger": "Won't start this time",
     "trigger_none_will_trigger": "No agents will start",
-    "trigger_reason_issue_assignee": "{{name}} is assigned here and will be notified by this comment.",
-    "trigger_reason_mention_agent": "{{name}} is mentioned in this comment.",
-    "trigger_reason_mention_squad_leader": "{{name}} leads a squad mentioned in this comment.",
-    "trigger_reason_unknown": "{{name}} will be triggered by this comment.",
+    "trigger_reason_mention_squad_leader": "Leads a squad mentioned here.",
+    "trigger_reason_unknown": "Will start from this comment.",
     "trigger_will_start": "Will start when sent",
     "trigger_will_start_count_one": "{{count}} agent will start when sent",
     "trigger_will_start_count_other": "{{count}} agents will start when sent",
-    "trigger_starts_now": "It will start working right away.",
-    "trigger_starts_when_online": "It is offline now and will start once online.",
-    "trigger_click_to_skip": "Click to skip triggering this time.",
-    "trigger_click_to_manage": "Click to manage who gets triggered this time.",
+    "trigger_starts_now": "Starts right away.",
+    "trigger_starts_when_online": "Offline now — starts once online.",
+    "trigger_click_to_skip": "Click to skip this time.",
+    "trigger_click_to_manage": "Click to choose who runs this time.",
     "trigger_click_to_restore": "Won't start this time. Click to restore.",
-    "trigger_preview_title": "This comment will trigger",
+    "trigger_preview_title": "Will start when sent",
     "trigger_chip_aria": "{{name}} trigger: {{state}}",
     "resolve": {
       "resolve_thread_action": "Resolve thread",
diff --git a/packages/views/locales/ja/issues.json b/packages/views/locales/ja/issues.json
index 52dc8d4560..b8af672379 100644
--- a/packages/views/locales/ja/issues.json
+++ b/packages/views/locales/ja/issues.json
@@ -274,18 +274,16 @@
     "trigger_skipped_label": "スキップ",
     "trigger_wont_trigger": "今回は開始しません",
     "trigger_none_will_trigger": "いずれも開始しません",
-    "trigger_reason_issue_assignee": "{{name}} はこのイシューの担当で、このコメントで通知されます。",
-    "trigger_reason_mention_agent": "このコメントで {{name}} がメンションされています。",
-    "trigger_reason_mention_squad_leader": "{{name}} はメンションされた Squad のリーダーです。",
-    "trigger_reason_unknown": "このコメントで {{name}} がトリガーされます。",
+    "trigger_reason_mention_squad_leader": "メンションされた Squad のリーダー。",
+    "trigger_reason_unknown": "このコメントで開始します。",
     "trigger_will_start": "送信後に作業を開始します",
     "trigger_will_start_count_other": "送信後に {{count}} 体のエージェントが作業を開始します",
-    "trigger_starts_now": "すぐに作業を開始します。",
-    "trigger_starts_when_online": "現在オフラインのため、オンラインになり次第開始します。",
-    "trigger_click_to_skip": "クリックすると今回はトリガーされません。",
-    "trigger_click_to_manage": "クリックして今回のトリガー対象を管理します。",
+    "trigger_starts_now": "すぐに開始します。",
+    "trigger_starts_when_online": "オフライン中。オンラインになり次第開始します。",
+    "trigger_click_to_skip": "クリックで今回はスキップ。",
+    "trigger_click_to_manage": "クリックして今回実行する対象を選択。",
     "trigger_click_to_restore": "今回は開始しません。クリックで元に戻せます。",
-    "trigger_preview_title": "このコメントでトリガーされる対象",
+    "trigger_preview_title": "送信後に開始する対象",
     "trigger_chip_aria": "{{name}} のトリガー: {{state}}",
     "resolve": {
       "resolve_thread_action": "スレッドを解決",
diff --git a/packages/views/locales/ko/issues.json b/packages/views/locales/ko/issues.json
index 6d9e5661f0..a9ef2bc28d 100644
--- a/packages/views/locales/ko/issues.json
+++ b/packages/views/locales/ko/issues.json
@@ -282,18 +282,16 @@
     "trigger_skipped_label": "건너뜀",
     "trigger_wont_trigger": "이번에는 시작하지 않습니다",
     "trigger_none_will_trigger": "어떤 에이전트도 시작하지 않습니다",
-    "trigger_reason_issue_assignee": "{{name}}님은 이 이슈의 담당자이며 이 댓글로 알림을 받습니다.",
-    "trigger_reason_mention_agent": "이 댓글에서 {{name}}님을 멘션했습니다.",
-    "trigger_reason_mention_squad_leader": "{{name}}님은 멘션된 Squad의 리더입니다.",
-    "trigger_reason_unknown": "이 댓글로 {{name}}님이 트리거됩니다.",
+    "trigger_reason_mention_squad_leader": "멘션된 Squad의 리더입니다.",
+    "trigger_reason_unknown": "이 댓글로 시작합니다.",
     "trigger_will_start": "전송 후 작업을 시작합니다",
     "trigger_will_start_count_other": "전송 후 에이전트 {{count}}개가 작업을 시작합니다",
-    "trigger_starts_now": "바로 작업을 시작합니다.",
+    "trigger_starts_now": "바로 시작합니다.",
     "trigger_starts_when_online": "현재 오프라인이며 온라인이 되면 시작합니다.",
-    "trigger_click_to_skip": "클릭하면 이번에는 트리거되지 않습니다.",
-    "trigger_click_to_manage": "클릭하여 이번 트리거 대상을 관리합니다.",
+    "trigger_click_to_skip": "클릭하면 이번에는 건너뜁니다.",
+    "trigger_click_to_manage": "클릭하여 이번에 실행할 대상을 선택합니다.",
     "trigger_click_to_restore": "이번에는 시작하지 않습니다. 클릭하면 복원됩니다.",
-    "trigger_preview_title": "이 댓글로 트리거되는 대상",
+    "trigger_preview_title": "전송 후 시작할 대상",
     "trigger_chip_aria": "{{name}} 트리거: {{state}}",
     "resolve": {
       "resolve_thread_action": "스레드 해결",
diff --git a/packages/views/locales/zh-Hans/issues.json b/packages/views/locales/zh-Hans/issues.json
index c4aff9ff1f..5a7c7d2d1c 100644
--- a/packages/views/locales/zh-Hans/issues.json
+++ b/packages/views/locales/zh-Hans/issues.json
@@ -279,18 +279,16 @@
     "trigger_skipped_label": "已跳过",
     "trigger_wont_trigger": "本次不会开始",
     "trigger_none_will_trigger": "都不会开始",
-    "trigger_reason_issue_assignee": "{{name}} 是当前 issue 的 assignee，这条评论会唤醒它。",
-    "trigger_reason_mention_agent": "这条评论 @ 了 {{name}}。",
-    "trigger_reason_mention_squad_leader": "{{name}} 是被 @ Squad 的 leader。",
-    "trigger_reason_unknown": "这条评论会触发 {{name}}。",
+    "trigger_reason_mention_squad_leader": "被 @ Squad 的 leader。",
+    "trigger_reason_unknown": "将由这条评论开始。",
     "trigger_will_start": "发送后开始工作",
     "trigger_will_start_count_other": "发送后 {{count}} 个智能体开始工作",
-    "trigger_starts_now": "将立即开始工作。",
+    "trigger_starts_now": "立即开始。",
     "trigger_starts_when_online": "当前离线，上线后开始。",
-    "trigger_click_to_skip": "点击后本次不触发。",
-    "trigger_click_to_manage": "点击管理本次触发对象。",
+    "trigger_click_to_skip": "点击本次跳过。",
+    "trigger_click_to_manage": "点击选择本次运行的对象。",
     "trigger_click_to_restore": "本次不会开始，点击恢复。",
-    "trigger_preview_title": "这条评论将触发",
+    "trigger_preview_title": "发送后将开始",
     "trigger_chip_aria": "{{name}} 触发状态：{{state}}",
     "resolve": {
       "resolve_thread_action": "解决该讨论",