diff --git a/AgentCompany-New/src/main/database/migrations/044-mention-wake-state.ts b/AgentCompany-New/src/main/database/migrations/044-mention-wake-state.ts
new file mode 100644
index 00000000..dd21712d
--- /dev/null
+++ b/AgentCompany-New/src/main/database/migrations/044-mention-wake-state.ts
@@ -0,0 +1,3 @@
+export const mentionWakeStateSchema = `
+  alter table chat_mentions add column wake_state text not null default 'none';
+`;
diff --git a/AgentCompany-New/src/main/database/schema.ts b/AgentCompany-New/src/main/database/schema.ts
index 456720b5..f3dce9ad 100644
--- a/AgentCompany-New/src/main/database/schema.ts
+++ b/AgentCompany-New/src/main/database/schema.ts
@@ -42,6 +42,7 @@ import { documentsKnowledgeAutomationSchema } from "./migrations/040-documents-k
 import { taskSubtasksDeleteSchema } from "./migrations/041-task-subtasks-delete";
 import { approvalNotesMeetingsSprintsSchema } from "./migrations/042-approval-notes-meetings-sprints";
 import { composioIntegrationSchema } from "./migrations/043-composio-integration";
+import { mentionWakeStateSchema } from "./migrations/044-mention-wake-state";
 
 interface Migration {
   version: number;
@@ -93,6 +94,7 @@ const MIGRATIONS: Migration[] = [
   { version: 41, name: "task_subtasks_delete", sql: taskSubtasksDeleteSchema },
   { version: 42, name: "approval_notes_meetings_sprints", sql: approvalNotesMeetingsSprintsSchema },
   { version: 43, name: "composio_integration", sql: composioIntegrationSchema },
+  { version: 44, name: "mention_wake_state", sql: mentionWakeStateSchema },
 ];
 
 const SCHEMA_VERSION = MIGRATIONS[MIGRATIONS.length - 1].version;
diff --git a/AgentCompany-New/src/main/services/chat-service.ts b/AgentCompany-New/src/main/services/chat-service.ts
index fe782598..a410795a 100644
--- a/AgentCompany-New/src/main/services/chat-service.ts
+++ b/AgentCompany-New/src/main/services/chat-service.ts
@@ -209,14 +209,17 @@ export class ChatService {
       (m) => m.target.type === "agent" && !(input.senderType === "agent" && input.senderId === m.target.id),
     );
     if (agentMentions.length === 0) return;
-    // An agent's own message must not keep waking teammates once the thread has
-    // run its autonomous budget; only a human re-entering the thread can.
     if (input.senderType === "agent" && this.autonomousThreadTurnsExhausted(input.orgId, threadId)) return;
     for (const mention of agentMentions) {
       try {
         this.agentWake.wakeFromMention(input, mention.target.id, messageId, threadId, now);
-      } catch {
-        // Mentions remain delivery metadata even when the target has no runtime.
+        this.db.prepare(
+          "update chat_mentions set wake_state = 'woken' where message_id = ? and target_type = 'agent' and target_id = ?",
+        ).run(messageId, mention.target.id);
+      } catch (error) {
+        this.db.prepare(
+          "update chat_mentions set wake_state = 'failed' where message_id = ? and target_type = 'agent' and target_id = ?",
+        ).run(messageId, mention.target.id);
       }
     }
   }
diff --git a/AgentCompany-New/src/renderer/src/pages/chat/ChatMessageRow.tsx b/AgentCompany-New/src/renderer/src/pages/chat/ChatMessageRow.tsx
index ffa751ce..b695376a 100644
--- a/AgentCompany-New/src/renderer/src/pages/chat/ChatMessageRow.tsx
+++ b/AgentCompany-New/src/renderer/src/pages/chat/ChatMessageRow.tsx
@@ -145,10 +145,19 @@ function renderBody(body: string, mentions: ChatMentionRecord[], context: Messag
     if (!token.startsWith("@")) throw new Error("Message mention token is invalid.");
     if (mention.offsetStart > lastIndex) parts.push(...formatInline(body.slice(lastIndex, mention.offsetStart), `s${lastIndex}`));
     const label = mentionLabel(mention, context);
+    const failed = mention.wakeState === "failed";
     parts.push(
       <span
         key={`m-${mention.messageId}-${mention.offsetStart}`}
-        style={{ background: "var(--accent-soft)", color: "var(--accent)", padding: "1px 5px", borderRadius: 4, fontWeight: 500 }}
+        title={failed ? "Agent could not be reached" : undefined}
+        style={{
+          background: failed ? "rgba(255,100,80,0.1)" : "var(--accent-soft)",
+          color: failed ? "var(--text-3)" : "var(--accent)",
+          padding: "1px 5px",
+          borderRadius: 4,
+          fontWeight: 500,
+          textDecoration: failed ? "line-through" : undefined,
+        }}
       >
         @{label}
       </span>,
diff --git a/AgentCompany-New/src/shared/chat-domain.ts b/AgentCompany-New/src/shared/chat-domain.ts
index 4bdcefff..f0847011 100644
--- a/AgentCompany-New/src/shared/chat-domain.ts
+++ b/AgentCompany-New/src/shared/chat-domain.ts
@@ -62,6 +62,7 @@ export interface ChatMentionRecord {
   targetId: string;
   offsetStart: number;
   offsetEnd: number;
+  wakeState: "none" | "woken" | "failed";
 }
 
 export interface ChatSlashInvocationRecord {