diff --git a/plugins/openclaw/openclaw/__tests__/mutation-whitespace.test.ts b/plugins/openclaw/openclaw/__tests__/mutation-whitespace.test.ts
new file mode 100644
index 00000000..20b1c26d
--- /dev/null
+++ b/plugins/openclaw/openclaw/__tests__/mutation-whitespace.test.ts
@@ -0,0 +1,70 @@
+import { once } from "node:events";
+import { createServer } from "node:http";
+import type { AddressInfo } from "node:net";
+import { describe, expect, it } from "vitest";
+import { MemoriaClient } from "../client.js";
+import { buildApiConfig } from "./helpers.js";
+
+describe.each(["store", "correctById", "correctByQuery"] as const)(
+  "%s preserves response content",
+  (operation) => {
+    it.each([
+      { label: "Python indentation", content: "    return value\n" },
+      { label: "tabs and Unicode", content: "\n\t记忆 😀\r\n  " },
+      { label: "trailing whitespace", content: "end  \t" },
+      { label: "leading newline", content: "\r\nfirst\nsecond" },
+      { label: "plain control", content: "ordinary text" },
+    ])("keeps $label in the result and cache", async ({ content }) => {
+      const requests: Array<{ method: string; url: string; body: unknown }> = [];
+      // A real loopback HTTP fixture, not a live Memoria database. The response
+      // deliberately differs from the request to prove we preserve server data.
+      const record = { memory_id: "result-id", content, memory_type: "semantic" };
+      const server = createServer(async (request, response) => {
+        let body = "";
+        for await (const chunk of request) body += chunk;
+        requests.push({
+          method: request.method!, url: request.url!, body: body ? JSON.parse(body) : null,
+        });
+        response.writeHead(200, { "Content-Type": "application/json" });
+        response.end(JSON.stringify(record));
+      });
+      server.listen(0, "127.0.0.1");
+      await once(server, "listening");
+      const config = buildApiConfig({
+        apiUrl: `http://127.0.0.1:${(server.address() as AddressInfo).port}`,
+      });
+      const client = new MemoriaClient(config);
+      const freshClient = new MemoriaClient(config);
+      try {
+        const requestContent = "request content";
+        const result = operation === "store"
+          ? await client.storeMemory({ userId: "u", content: requestContent, memoryType: "semantic" })
+          : operation === "correctById"
+            ? await client.correctById({ userId: "u", memoryId: "old-id", newContent: requestContent })
+            : await client.correctByQuery({ userId: "u", query: "old", newContent: requestContent });
+        expect(requests).toEqual([operation === "store"
+          ? { method: "POST", url: "/v1/memories", body: { content: requestContent, memory_type: "semantic" } }
+          : {
+            method: operation === "correctById" ? "PUT" : "POST",
+            url: operation === "correctById" ? "/v1/memories/old-id/correct" : "/v1/memories/correct",
+            body: operation === "correctById"
+              ? { new_content: requestContent }
+              : { query: "old", new_content: requestContent },
+          }]);
+        const cached = await client.getMemory({ userId: "u", memoryId: "result-id" });
+        expect(requests).toHaveLength(1); // The actual client cache was exercised.
+        const fetched = await freshClient.getMemory({ userId: "u", memoryId: "result-id" });
+        expect(requests[1]).toEqual({ method: "GET", url: "/v1/memories/result-id", body: null });
+        expect(fetched?.content).toBe(content);
+        expect(result).toMatchObject({ memory_id: "result-id", content });
+        expect(cached?.content).toBe(fetched?.content);
+      } finally {
+        client.close();
+        freshClient.close();
+        await new Promise<void>((resolve, reject) => {
+          server.close((error) => error ? reject(error) : resolve());
+        });
+      }
+    });
+  },
+);
diff --git a/plugins/openclaw/openclaw/client.ts b/plugins/openclaw/openclaw/client.ts
index a426de93..004fd390 100644
--- a/plugins/openclaw/openclaw/client.ts
+++ b/plugins/openclaw/openclaw/client.ts
@@ -140,12 +140,12 @@ function normalizeTypeCounts(value: unknown): Record<string, number> {
 function extractToolText(result: unknown): string {
   const record = asRecord(result);
   if (!record) {
-    return typeof result === "string" ? result.trim() : "";
+    return typeof result === "string" ? result : "";
   }
 
   const content = record.content;
   if (!Array.isArray(content)) {
-    return typeof record.text === "string" ? record.text.trim() : "";
+    return typeof record.text === "string" ? record.text : "";
   }
 
   const parts: string[] = [];
@@ -155,7 +155,7 @@ function extractToolText(result: unknown): string {
       parts.push(block.text);
     }
   }
-  return parts.join("\n").trim();
+  return parts.join("\n");
 }
 
 function parseMemoryTextList(text: string): MemoriaMemoryRecord[] {
@@ -221,7 +221,8 @@ function parseStoredMemory(text: string, fallback: {
   trustTier?: MemoriaTrustTier;
   sessionId?: string;
 }): MemoriaMemoryRecord {
-  const match = text.match(/^Stored memory ([^:]+):\s*([\s\S]*)$/);
+  // Consume only the formatter's separator, not the memory's own indentation.
+  const match = text.match(/^Stored memory ([^:]+): ?([\s\S]*)$/);
   return normalizeMemoryRecord({
     memory_id: match?.[1]?.trim() ?? "",
     content: match?.[2] ?? fallback.content,
@@ -232,7 +233,7 @@ function parseStoredMemory(text: string, fallback: {
 }
 
 function parseCorrectedMemory(text: string, fallbackContent: string) {
-  const match = text.match(/^Corrected memory ([^:]+):\s*([\s\S]*)$/);
+  const match = text.match(/^Corrected memory ([^:]+): ?([\s\S]*)$/);
   if (!match) {
     return null;
   }
@@ -894,7 +895,12 @@ export class MemoriaClient {
   ): Promise<string> {
     const session = this.getSession(userId);
     const result = await session.callTool(name, args);
-    const text = extractToolText(result);
+    const rawText = extractToolText(result);
+    // Mutation text ends in the stored content itself; trimming it corrupts
+    // both the returned record and the cache. Other tools keep their contract.
+    const text = name === "memory_store" || name === "memory_correct"
+      ? rawText
+      : rawText.trim();
     if (text) {
       return text;
     }