diff --git a/src/hooks/bundled/session-memory/handler.test.ts b/src/hooks/bundled/session-memory/handler.test.ts
index e7c85d8f603..a94efde7c3b 100644
--- a/src/hooks/bundled/session-memory/handler.test.ts
+++ b/src/hooks/bundled/session-memory/handler.test.ts
@@ -1,3 +1,4 @@
+import crypto from "node:crypto";
 import fs from "node:fs/promises";
 import os from "node:os";
 import path from "node:path";
diff --git a/src/hooks/bundled/session-memory/handler.ts b/src/hooks/bundled/session-memory/handler.ts
index b09736af70e..b4b21a15df7 100644
--- a/src/hooks/bundled/session-memory/handler.ts
+++ b/src/hooks/bundled/session-memory/handler.ts
@@ -5,6 +5,7 @@
  * Creates a new dated memory file with LLM-generated slug
  */
 
+import crypto from "node:crypto";
 import fs from "node:fs/promises";
 import os from "node:os";
 import path from "node:path";
@@ -450,7 +451,10 @@ const saveSessionToMemory: HookHandler = async (event) => {
         // provider for slug generation — but only when the transcript was actually
         // loaded (i.e. no custom content was pre-set). When hasCustomContent is
         // true, transcript loading and LLM calls were skipped entirely.
-        if (!hasCustomContent) {
+        if (!hasCustomContent && sessionContent) {
+          // Only warn when transcript was actually loaded and potentially
+          // sent to the LLM for slug generation. When sessionFile was null
+          // or sessionContent failed to load, no data left the device.
           log.warn(
             "blockSessionSave was set by a late hook — memory file will be retracted, but " +
               "transcript content may have already been sent to the LLM provider for slug generation. " +