diff --git a/CHANGELOG.md b/CHANGELOG.md
index dfff788e944..7fcc92a6cb4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,7 @@ Docs: https://docs.openclaw.ai
 
 ### Fixes
 
+- Auto-reply/Inbound metadata: hide direct-chat `message_id`/`message_id_full` and sender metadata only from normalized chat type (not sender-id sentinels), preserving group metadata visibility and preventing sender-id spoofed direct-mode classification. (#24373) thanks @jd316.
 - Security/Exec: detect obfuscated commands before exec allowlist decisions and require explicit approval for obfuscation patterns. (#8592) Thanks @CornBrother0x and @vincentkoc.
 - Agents/Compaction: pass `agentDir` into manual `/compact` command runs so compaction auth/profile resolution stays scoped to the active agent. (#24133) thanks @Glucksberg.
 - Agents/Models: codify `agents.defaults.model` / `agents.defaults.imageModel` config-boundary input as `string | {primary,fallbacks}`, split explicit vs effective model resolution, and fix `models status --agent` source attribution so defaults-inherited agents are labeled as `defaults` while runtime selection still honors defaults fallback. (#24210) thanks @bianbiandashen.
diff --git a/src/auto-reply/reply/inbound-meta.test.ts b/src/auto-reply/reply/inbound-meta.test.ts
index 915c4800e68..239aa23bc11 100644
--- a/src/auto-reply/reply/inbound-meta.test.ts
+++ b/src/auto-reply/reply/inbound-meta.test.ts
@@ -83,6 +83,30 @@ describe("buildInboundUserContextPrefix", () => {
     expect(text).toBe("");
   });
 
+  it("hides message identifiers for direct chats", () => {
+    const text = buildInboundUserContextPrefix({
+      ChatType: "direct",
+      MessageSid: "short-id",
+      MessageSidFull: "provider-full-id",
+    } as TemplateContext);
+
+    expect(text).toBe("");
+  });
+
+  it("does not treat group chats as direct based on sender id", () => {
+    const text = buildInboundUserContextPrefix({
+      ChatType: "group",
+      SenderId: "openclaw-control-ui",
+      MessageSid: "123",
+      ConversationLabel: "some-label",
+    } as TemplateContext);
+
+    const conversationInfo = parseConversationInfoPayload(text);
+    expect(conversationInfo["message_id"]).toBe("123");
+    expect(conversationInfo["sender_id"]).toBe("openclaw-control-ui");
+    expect(conversationInfo["conversation_label"]).toBe("some-label");
+  });
+
   it("keeps conversation label for group chats", () => {
     const text = buildInboundUserContextPrefix({
       ChatType: "group",
@@ -95,7 +119,7 @@ describe("buildInboundUserContextPrefix", () => {
 
   it("includes sender identifier in conversation info", () => {
     const text = buildInboundUserContextPrefix({
-      ChatType: "direct",
+      ChatType: "group",
       SenderE164: " +15551234567 ",
     } as TemplateContext);
 
@@ -105,7 +129,7 @@ describe("buildInboundUserContextPrefix", () => {
 
   it("includes message_id in conversation info", () => {
     const text = buildInboundUserContextPrefix({
-      ChatType: "direct",
+      ChatType: "group",
       MessageSid: "  msg-123  ",
     } as TemplateContext);
 
@@ -127,7 +151,7 @@ describe("buildInboundUserContextPrefix", () => {
 
   it("omits message_id_full when it matches message_id", () => {
     const text = buildInboundUserContextPrefix({
-      ChatType: "direct",
+      ChatType: "group",
       MessageSid: "same-id",
       MessageSidFull: "same-id",
     } as TemplateContext);
@@ -139,7 +163,7 @@ describe("buildInboundUserContextPrefix", () => {
 
   it("includes reply_to_id in conversation info", () => {
     const text = buildInboundUserContextPrefix({
-      ChatType: "direct",
+      ChatType: "group",
       MessageSid: "msg-200",
       ReplyToId: "msg-199",
     } as TemplateContext);
@@ -161,7 +185,7 @@ describe("buildInboundUserContextPrefix", () => {
 
   it("trims sender_id in conversation info", () => {
     const text = buildInboundUserContextPrefix({
-      ChatType: "direct",
+      ChatType: "group",
       MessageSid: "msg-457",
       SenderId: "  289522496  ",
     } as TemplateContext);
@@ -172,7 +196,7 @@ describe("buildInboundUserContextPrefix", () => {
 
   it("falls back to SenderId when sender phone is missing", () => {
     const text = buildInboundUserContextPrefix({
-      ChatType: "direct",
+      ChatType: "group",
       SenderId: " user@example.com ",
     } as TemplateContext);
 
diff --git a/src/auto-reply/reply/inbound-meta.ts b/src/auto-reply/reply/inbound-meta.ts
index bbcbc5dabac..80a2d3c3ce8 100644
--- a/src/auto-reply/reply/inbound-meta.ts
+++ b/src/auto-reply/reply/inbound-meta.ts
@@ -75,12 +75,18 @@ export function buildInboundUserContextPrefix(ctx: TemplateContext): string {
   const messageId = safeTrim(ctx.MessageSid);
   const messageIdFull = safeTrim(ctx.MessageSidFull);
   const conversationInfo = {
-    message_id: messageId,
-    message_id_full: messageIdFull && messageIdFull !== messageId ? messageIdFull : undefined,
-    reply_to_id: safeTrim(ctx.ReplyToId),
-    sender_id: safeTrim(ctx.SenderId),
+    message_id: isDirect ? undefined : messageId,
+    message_id_full: isDirect
+      ? undefined
+      : messageIdFull && messageIdFull !== messageId
+        ? messageIdFull
+        : undefined,
+    reply_to_id: isDirect ? undefined : safeTrim(ctx.ReplyToId),
+    sender_id: isDirect ? undefined : safeTrim(ctx.SenderId),
     conversation_label: isDirect ? undefined : safeTrim(ctx.ConversationLabel),
-    sender: safeTrim(ctx.SenderE164) ?? safeTrim(ctx.SenderId) ?? safeTrim(ctx.SenderUsername),
+    sender: isDirect
+      ? undefined
+      : (safeTrim(ctx.SenderE164) ?? safeTrim(ctx.SenderId) ?? safeTrim(ctx.SenderUsername)),
     group_subject: safeTrim(ctx.GroupSubject),
     group_channel: safeTrim(ctx.GroupChannel),
     group_space: safeTrim(ctx.GroupSpace),