diff --git a/src/linq/monitor.ts b/src/linq/monitor.ts
index c9ac12ba83..bcb4f2a442 100644
--- a/src/linq/monitor.ts
+++ b/src/linq/monitor.ts
@@ -34,7 +34,7 @@ import {
 import { resolveAgentRoute } from "../routing/resolve-route.js";
 import { truncateUtf16Safe } from "../utils.js";
 import { resolveLinqAccount } from "./accounts.js";
-import { sendMessageLinq } from "./send.js";
+import { markAsReadLinq, sendMessageLinq, startTypingLinq } from "./send.js";
 
 export type MonitorLinqOpts = {
   accountId?: string;
@@ -198,6 +198,10 @@ export async function monitorLinqProvider(opts: MonitorLinqOpts = {}): Promise<v
       return;
     }
 
+    // Send read receipt and typing indicator immediately (fire-and-forget).
+    markAsReadLinq(chatId, token).catch(() => {});
+    startTypingLinq(chatId, token).catch(() => {});
+
     const storeAllowFrom = await readChannelAllowFromStore("linq").catch(() => []);
     const effectiveDmAllowFrom = Array.from(new Set([...allowFrom, ...storeAllowFrom]))
       .map((v) => String(v).trim())
@@ -342,8 +346,7 @@ export async function monitorLinqProvider(opts: MonitorLinqOpts = {}): Promise<v
       ...prefixOptions,
       humanDelay: resolveHumanDelayConfig(cfg, route.agentId),
       deliver: async (payload) => {
-        const replyText =
-          typeof payload === "string" ? payload : ((payload as { body?: string }).body ?? "");
+        const replyText = typeof payload === "string" ? payload : (payload.text ?? "");
         if (replyText) {
           await sendMessageLinq(chatId, replyText, {
             token,
diff --git a/src/linq/probe.ts b/src/linq/probe.ts
index 4d5288122b..e1c07ca72e 100644
--- a/src/linq/probe.ts
+++ b/src/linq/probe.ts
@@ -32,7 +32,7 @@ export async function probeLinq(
   try {
     const response = await fetch(url, {
       method: "GET",
-      headers: { Authorization: `Bearer ${resolvedToken}` },
+      headers: { Authorization: `Bearer ${resolvedToken}`, "User-Agent": "OpenClaw/1.0" },
       signal: controller.signal,
     });
     if (!response.ok) {
diff --git a/src/linq/send.ts b/src/linq/send.ts
index 701361d4c6..a68b09fea1 100644
--- a/src/linq/send.ts
+++ b/src/linq/send.ts
@@ -3,6 +3,7 @@ import { loadConfig } from "../config/config.js";
 import { resolveLinqAccount, type ResolvedLinqAccount } from "./accounts.js";
 
 const LINQ_API_BASE = "https://api.linqapp.com/api/partner/v3";
+const UA = "OpenClaw/1.0";
 
 export type LinqSendOpts = {
   accountId?: string;
@@ -55,6 +56,7 @@ export async function sendMessageLinq(
     headers: {
       Authorization: `Bearer ${token}`,
       "Content-Type": "application/json",
+      "User-Agent": UA,
     },
     body: JSON.stringify({ message }),
   });
@@ -79,7 +81,7 @@ export async function startTypingLinq(chatId: string, token: string): Promise<vo
   const url = `${LINQ_API_BASE}/chats/${encodeURIComponent(chatId)}/typing`;
   await fetch(url, {
     method: "POST",
-    headers: { Authorization: `Bearer ${token}` },
+    headers: { Authorization: `Bearer ${token}`, "User-Agent": UA },
   });
 }
 
@@ -88,7 +90,7 @@ export async function stopTypingLinq(chatId: string, token: string): Promise<voi
   const url = `${LINQ_API_BASE}/chats/${encodeURIComponent(chatId)}/typing`;
   await fetch(url, {
     method: "DELETE",
-    headers: { Authorization: `Bearer ${token}` },
+    headers: { Authorization: `Bearer ${token}`, "User-Agent": UA },
   });
 }
 
@@ -97,7 +99,7 @@ export async function markAsReadLinq(chatId: string, token: string): Promise<voi
   const url = `${LINQ_API_BASE}/chats/${encodeURIComponent(chatId)}/read`;
   await fetch(url, {
     method: "POST",
-    headers: { Authorization: `Bearer ${token}` },
+    headers: { Authorization: `Bearer ${token}`, "User-Agent": UA },
   });
 }
 
@@ -114,6 +116,7 @@ export async function sendReactionLinq(
     headers: {
       Authorization: `Bearer ${token}`,
       "Content-Type": "application/json",
+      "User-Agent": UA,
     },
     body: JSON.stringify({ operation, type }),
   });