diff --git a/packages/memory-host-sdk/src/host/session-files.test.ts b/packages/memory-host-sdk/src/host/session-files.test.ts
index 476aa35644b..7ad7ee8c32a 100644
--- a/packages/memory-host-sdk/src/host/session-files.test.ts
+++ b/packages/memory-host-sdk/src/host/session-files.test.ts
@@ -120,4 +120,34 @@ describe("buildSessionEntry", () => {
     expect(entry).not.toBeNull();
     expect(entry!.lineMap).toEqual([3, 5]);
   });
+
+  it("strips inbound metadata when a user envelope is split across text blocks", async () => {
+    const jsonlLines = [
+      JSON.stringify({
+        type: "message",
+        message: {
+          role: "user",
+          content: [
+            { type: "text", text: "Conversation info (untrusted metadata):" },
+            { type: "text", text: "```json" },
+            { type: "text", text: '{"message_id":"msg-100","chat_id":"-100123"}' },
+            { type: "text", text: "```" },
+            { type: "text", text: "" },
+            { type: "text", text: "Sender (untrusted metadata):" },
+            { type: "text", text: "```json" },
+            { type: "text", text: '{"label":"Chris","id":"42"}' },
+            { type: "text", text: "```" },
+            { type: "text", text: "" },
+            { type: "text", text: "Actual user text" },
+          ],
+        },
+      }),
+    ];
+    const filePath = path.join(tmpDir, "enveloped-session-array.jsonl");
+    await fs.writeFile(filePath, jsonlLines.join("\n"));
+
+    const entry = await buildSessionEntry(filePath);
+    expect(entry).not.toBeNull();
+    expect(entry!.content).toBe("User: Actual user text");
+  });
 });
diff --git a/packages/memory-host-sdk/src/host/session-files.ts b/packages/memory-host-sdk/src/host/session-files.ts
index 8d19279180f..d2a1116189e 100644
--- a/packages/memory-host-sdk/src/host/session-files.ts
+++ b/packages/memory-host-sdk/src/host/session-files.ts
@@ -69,6 +69,26 @@ function normalizeSessionText(value: string): string {
     .trim();
 }
 
+function collectRawSessionText(content: unknown): string | null {
+  if (typeof content === "string") {
+    return content;
+  }
+  if (!Array.isArray(content)) {
+    return null;
+  }
+  const parts: string[] = [];
+  for (const block of content) {
+    if (!block || typeof block !== "object") {
+      continue;
+    }
+    const record = block as { type?: unknown; text?: unknown };
+    if (record.type === "text" && typeof record.text === "string") {
+      parts.push(record.text);
+    }
+  }
+  return parts.length > 0 ? parts.join("\n") : null;
+}
+
 /**
  * Strip OpenClaw-injected inbound metadata envelopes from a raw text block
  * on user-role messages before normalization. See the authoritative
@@ -86,33 +106,13 @@ export function extractSessionText(
   content: unknown,
   role: "user" | "assistant" = "assistant",
 ): string | null {
-  if (typeof content === "string") {
-    const stripped = stripInboundMetadataForUserRole(content, role);
-    const normalized = normalizeSessionText(stripped);
-    return normalized ? normalized : null;
-  }
-  if (!Array.isArray(content)) {
+  const rawText = collectRawSessionText(content);
+  if (rawText === null) {
     return null;
   }
-  const parts: string[] = [];
-  for (const block of content) {
-    if (!block || typeof block !== "object") {
-      continue;
-    }
-    const record = block as { type?: unknown; text?: unknown };
-    if (record.type !== "text" || typeof record.text !== "string") {
-      continue;
-    }
-    const stripped = stripInboundMetadataForUserRole(record.text, role);
-    const normalized = normalizeSessionText(stripped);
-    if (normalized) {
-      parts.push(normalized);
-    }
-  }
-  if (parts.length === 0) {
-    return null;
-  }
-  return parts.join(" ");
+  const stripped = stripInboundMetadataForUserRole(rawText, role);
+  const normalized = normalizeSessionText(stripped);
+  return normalized ? normalized : null;
 }
 
 export async function buildSessionEntry(absPath: string): Promise<SessionFileEntry | null> {
diff --git a/src/memory-host-sdk/host/session-files.test.ts b/src/memory-host-sdk/host/session-files.test.ts
index 6df89081b99..47e6213ce31 100644
--- a/src/memory-host-sdk/host/session-files.test.ts
+++ b/src/memory-host-sdk/host/session-files.test.ts
@@ -197,6 +197,36 @@ describe("buildSessionEntry", () => {
     expect(contentLines[1]).toBe("Assistant: 好的,我来查一下");
   });
 
+  it("strips inbound metadata when a user envelope is split across text blocks", async () => {
+    const jsonlLines = [
+      JSON.stringify({
+        type: "message",
+        message: {
+          role: "user",
+          content: [
+            { type: "text", text: "Conversation info (untrusted metadata):" },
+            { type: "text", text: "```json" },
+            { type: "text", text: '{"message_id":"msg-100","chat_id":"-100123"}' },
+            { type: "text", text: "```" },
+            { type: "text", text: "" },
+            { type: "text", text: "Sender (untrusted metadata):" },
+            { type: "text", text: "```json" },
+            { type: "text", text: '{"label":"Chris","id":"42"}' },
+            { type: "text", text: "```" },
+            { type: "text", text: "" },
+            { type: "text", text: "Actual user text" },
+          ],
+        },
+      }),
+    ];
+    const filePath = path.join(tmpDir, "enveloped-session-array.jsonl");
+    await fs.writeFile(filePath, jsonlLines.join("\n"));
+
+    const entry = await buildSessionEntry(filePath);
+    expect(entry).not.toBeNull();
+    expect(entry!.content).toBe("User: Actual user text");
+  });
+
   it("preserves assistant messages that happen to contain sentinel-like text", async () => {
     // Assistant role must NOT be stripped — only user messages carry inbound
     // envelopes, and assistants may legitimately discuss metadata formats.
diff --git a/src/memory-host-sdk/host/session-files.ts b/src/memory-host-sdk/host/session-files.ts
index 3263d8d0890..bc30386061b 100644
--- a/src/memory-host-sdk/host/session-files.ts
+++ b/src/memory-host-sdk/host/session-files.ts
@@ -183,6 +183,26 @@ function normalizeSessionText(value: string): string {
     .trim();
 }
 
+function collectRawSessionText(content: unknown): string | null {
+  if (typeof content === "string") {
+    return content;
+  }
+  if (!Array.isArray(content)) {
+    return null;
+  }
+  const parts: string[] = [];
+  for (const block of content) {
+    if (!block || typeof block !== "object") {
+      continue;
+    }
+    const record = block as { type?: unknown; text?: unknown };
+    if (record.type === "text" && typeof record.text === "string") {
+      parts.push(record.text);
+    }
+  }
+  return parts.length > 0 ? parts.join("\n") : null;
+}
+
 /**
  * Strip OpenClaw-injected inbound metadata envelopes from a raw text block.
  *
@@ -207,33 +227,13 @@ export function extractSessionText(
   content: unknown,
   role: "user" | "assistant" = "assistant",
 ): string | null {
-  if (typeof content === "string") {
-    const stripped = stripInboundMetadataForUserRole(content, role);
-    const normalized = normalizeSessionText(stripped);
-    return normalized ? normalized : null;
-  }
-  if (!Array.isArray(content)) {
+  const rawText = collectRawSessionText(content);
+  if (rawText === null) {
     return null;
   }
-  const parts: string[] = [];
-  for (const block of content) {
-    if (!block || typeof block !== "object") {
-      continue;
-    }
-    const record = block as { type?: unknown; text?: unknown };
-    if (record.type !== "text" || typeof record.text !== "string") {
-      continue;
-    }
-    const stripped = stripInboundMetadataForUserRole(record.text, role);
-    const normalized = normalizeSessionText(stripped);
-    if (normalized) {
-      parts.push(normalized);
-    }
-  }
-  if (parts.length === 0) {
-    return null;
-  }
-  return parts.join(" ");
+  const stripped = stripInboundMetadataForUserRole(rawText, role);
+  const normalized = normalizeSessionText(stripped);
+  return normalized ? normalized : null;
 }
 
 function parseSessionTimestampMs(