From 7a81cc94d3c9d73fc261e91980dd57b49b609c41 Mon Sep 17 00:00:00 2001
From: zeroaltitude <zeroaltitude@gmail.com>
Date: Fri, 6 Mar 2026 15:58:37 -0700
Subject: [PATCH] fix(session-memory): add debug log for custom content,
 tighten test assertion

- Add log.debug when sessionSaveContent override is used (symmetric with blockSessionSave)
- Change override test assertion from toContain to toBe for precision
---
 src/hooks/bundled/session-memory/handler.test.ts | 2 +-
 src/hooks/bundled/session-memory/handler.ts      | 5 +++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/hooks/bundled/session-memory/handler.test.ts b/src/hooks/bundled/session-memory/handler.test.ts
index b5b5ef3ce13..c2a7e07b79c 100644
--- a/src/hooks/bundled/session-memory/handler.test.ts
+++ b/src/hooks/bundled/session-memory/handler.test.ts
@@ -618,7 +618,7 @@ describe("session-memory hook", () => {
     const files = (await fs.readdir(memoryDir)).filter((f) => f.endsWith(".md"));
     expect(files.length).toBeGreaterThan(0);
     const content = await fs.readFile(path.join(memoryDir, files[0]), "utf-8");
-    expect(content).toContain("Custom summary from upstream hook");
+    expect(content).toBe("Custom summary from upstream hook");
     expect(content).not.toContain("original");
   });
 
diff --git a/src/hooks/bundled/session-memory/handler.ts b/src/hooks/bundled/session-memory/handler.ts
index c6bfa6d0a9a..94cbf9791d7 100644
--- a/src/hooks/bundled/session-memory/handler.ts
+++ b/src/hooks/bundled/session-memory/handler.ts
@@ -353,6 +353,11 @@ const saveSessionToMemory: HookHandler = async (event) => {
     // An empty string is a valid redaction signal — hooks may intentionally
     // set it to persist a blank marker while avoiding transcript retention.
     const customContent = context.sessionSaveContent;
+    if (typeof customContent === "string") {
+      log.debug("Using custom session content from upstream hook", {
+        length: customContent.length,
+      });
+    }
     const entry = typeof customContent === "string" ? customContent : entryParts.join("\n");
 
     // Write under memory root with alias-safe file validation.