diff --git a/CHANGELOG.md b/CHANGELOG.md
index 40574642634..4a4fab28a7c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -26,6 +26,7 @@ Docs: https://docs.openclaw.ai
 - Dreaming/diary: use the host local timezone for diary timestamps when `dreaming.timezone` is unset, so `DREAMS.md` and the UI stop defaulting to UTC. (#65034) Thanks @neo1027144-creator and @vincentkoc.
 - Dreaming/diary: include the timezone abbreviation in diary timestamps so `DREAMS.md` and the UI make UTC or local host time explicit. (#65057) Thanks @Yanhu007 and @vincentkoc.
 - Dreaming/narrative: harden transient narrative cleanup by retrying timed-out deletes and scrubbing stale dreaming session artifacts through the lock-aware session-store path. (#65320) Thanks @serkonyc and @vincentkoc.
+- Dreaming/narrative: isolate transient narrative session keys per workspace so simultaneous dreaming phases cannot cross-read or delete each other's session state. (#61674) Thanks @GaosCode and @vincentkoc.
 - Plugins/memory: restore cached memory capability public artifacts on plugin-registry cache hits so memory-backed artifact surfaces stay visible after warm loads. Thanks @sercada and @vincentkoc.
 - Gateway/cron: preserve requested isolated-agent config across runtime reloads so subagent jobs and heartbeat overrides keep the right workspace and heartbeat settings when the hot-loaded snapshot is stale. Thanks @l0cka and @vincentkoc.
 - Gateway/plugins: always send a non-empty `idempotencyKey` for plugin subagent runs, so dreaming narrative jobs stop failing gateway schema validation. (#65354) Thanks @CodeForgeNet and @vincentkoc.
diff --git a/extensions/memory-core/src/dreaming-narrative.test.ts b/extensions/memory-core/src/dreaming-narrative.test.ts
index 178f56e29ef..e62ddaea61f 100644
--- a/extensions/memory-core/src/dreaming-narrative.test.ts
+++ b/extensions/memory-core/src/dreaming-narrative.test.ts
@@ -1,3 +1,4 @@
+import { createHash } from "node:crypto";
 import fs from "node:fs/promises";
 import path from "node:path";
 import * as configRuntimeModule from "openclaw/plugin-sdk/config-runtime";
@@ -583,7 +584,8 @@ describe("generateAndAppendDreamNarrative", () => {
     const subagent = createMockSubagent("The repository whispered of forgotten endpoints.");
     const logger = createMockLogger();
     const nowMs = Date.parse("2026-04-05T03:00:00Z");
-    const expectedSessionKey = `dreaming-narrative-light-${nowMs}`;
+    const workspaceHash = createHash("sha1").update(workspaceDir).digest("hex").slice(0, 12);
+    const expectedSessionKey = `dreaming-narrative-light-${workspaceHash}-${nowMs}`;
 
     await generateAndAppendDreamNarrative({
       subagent,
@@ -848,4 +850,37 @@ describe("generateAndAppendDreamNarrative", () => {
     expect(sessionFiles).toContain("still-live.jsonl");
     expect(logger.info).toHaveBeenCalledWith(expect.stringContaining("dreaming cleanup scrubbed"));
   });
+
+  it("isolates narrative sessions across workspaces even at the same timestamp", async () => {
+    const firstWorkspaceDir = await createTempWorkspace("openclaw-dreaming-narrative-");
+    const secondWorkspaceDir = await createTempWorkspace("openclaw-dreaming-narrative-");
+    const subagent = createMockSubagent("A quiet memory took shape.");
+    const logger = createMockLogger();
+    const nowMs = Date.parse("2026-04-05T03:00:00Z");
+
+    await generateAndAppendDreamNarrative({
+      subagent,
+      workspaceDir: firstWorkspaceDir,
+      data: { phase: "light", snippets: ["first workspace fragment"] },
+      nowMs,
+      logger,
+    });
+    await generateAndAppendDreamNarrative({
+      subagent,
+      workspaceDir: secondWorkspaceDir,
+      data: { phase: "light", snippets: ["second workspace fragment"] },
+      nowMs,
+      logger,
+    });
+
+    const firstSessionKey = subagent.run.mock.calls[0]?.[0]?.sessionKey;
+    const secondSessionKey = subagent.run.mock.calls[1]?.[0]?.sessionKey;
+    expect(firstSessionKey).toBeTypeOf("string");
+    expect(secondSessionKey).toBeTypeOf("string");
+    expect(firstSessionKey).not.toBe(secondSessionKey);
+    expect(firstSessionKey).toContain("dreaming-narrative-light-");
+    expect(secondSessionKey).toContain("dreaming-narrative-light-");
+    expect(subagent.deleteSession.mock.calls[0]?.[0]?.sessionKey).toBe(firstSessionKey);
+    expect(subagent.deleteSession.mock.calls[1]?.[0]?.sessionKey).toBe(secondSessionKey);
+  });
 });
diff --git a/extensions/memory-core/src/dreaming-narrative.ts b/extensions/memory-core/src/dreaming-narrative.ts
index 6d579ddc822..9ff7a62271d 100644
--- a/extensions/memory-core/src/dreaming-narrative.ts
+++ b/extensions/memory-core/src/dreaming-narrative.ts
@@ -1,4 +1,5 @@
 import type { Dirent } from "node:fs";
+import { createHash } from "node:crypto";
 import fs from "node:fs/promises";
 import path from "node:path";
 import {
@@ -176,6 +177,15 @@ async function startNarrativeRunOrFallback(params: {
   }
 }
 
+function buildNarrativeSessionKey(params: {
+  workspaceDir: string;
+  phase: NarrativePhaseData["phase"];
+  nowMs: number;
+}): string {
+  const workspaceHash = createHash("sha1").update(params.workspaceDir).digest("hex").slice(0, 12);
+  return `dreaming-narrative-${params.phase}-${workspaceHash}-${params.nowMs}`;
+}
+
 // ── Prompt building ────────────────────────────────────────────────────
 
 export function buildNarrativePrompt(data: NarrativePhaseData): string {
@@ -835,7 +845,11 @@ export async function generateAndAppendDreamNarrative(params: {
     return;
   }
 
-  const sessionKey = `dreaming-narrative-${params.data.phase}-${nowMs}`;
+  const sessionKey = buildNarrativeSessionKey({
+    workspaceDir: params.workspaceDir,
+    phase: params.data.phase,
+    nowMs,
+  });
   const message = buildNarrativePrompt(params.data);
   let runId: string | null = null;
   let waitStatus: string | null = null;