diff --git a/deploy/profile-scripts/agent_spiral_watchdog.py b/deploy/profile-scripts/agent_spiral_watchdog.py
index ae18f1c3..165c861f 100644
--- a/deploy/profile-scripts/agent_spiral_watchdog.py
+++ b/deploy/profile-scripts/agent_spiral_watchdog.py
@@ -59,6 +59,13 @@ def save_state(st):
         pass
 
 
+def _to_ms(ts):
+    """started_at 单位自适应：>1e12 视为毫秒，否则视为秒。"""
+    if not ts:
+        return 0
+    return ts if ts > 1e12 else ts * 1000
+
+
 def main():
     st = load_state()
     alerted = set(st.get("alerted", []))
@@ -70,6 +77,10 @@ def main():
         try:
             conn = sqlite3.connect(f"file:{db_path}?mode=ro", uri=True, timeout=10)
             conn.row_factory = sqlite3.Row
+            tables = {r[0] for r in conn.execute("SELECT name FROM sqlite_master WHERE type='table'")}
+            if "sessions" not in tables:
+                conn.close()
+                continue
             rows = conn.execute("""
                 SELECT id, started_at, message_count, input_tokens, tool_call_count
                 FROM sessions
@@ -83,7 +94,7 @@ def main():
             continue
 
         for r in rows:
-            sa = r["started_at"] or 0
+            sa = _to_ms(r["started_at"])
             age_sec = (now_ms - sa) / 1000
             if age_sec < MIN_AGE_SEC:
                 continue
diff --git a/deploy/profile-scripts/system_hygiene_audit.py b/deploy/profile-scripts/system_hygiene_audit.py
index c21216f9..cc9d94da 100644
--- a/deploy/profile-scripts/system_hygiene_audit.py
+++ b/deploy/profile-scripts/system_hygiene_audit.py
@@ -216,7 +216,8 @@ def check_stale_sessions():
         except Exception:
             continue
         for r in rows:
-            sa = (r['started_at'] or 0) / 1000
+            raw_sa = r['started_at'] or 0
+            sa = (raw_sa if raw_sa > 1e12 else raw_sa * 1000) / 1000  # 单位自适应
             if not (0 < sa < soul_mtime):
                 continue
             # 只报"仍活跃"的：最近 6 小时内有消息（已被 bump 遗弃的旧 session 不报）
@@ -226,7 +227,8 @@ def check_stale_sessions():
                     "SELECT MAX(created_at) FROM messages WHERE session_id=?",
                     (r['id'],)).fetchone()[0]
                 conn2.close()
-                last_ts = (last_msg or 0) / 1000
+                lm = last_msg or 0
+                last_ts = (lm if lm > 1e12 else lm * 1000) / 1000  # 单位自适应
                 if last_ts and (datetime.now().timestamp() - last_ts) > 6 * 3600:
                     continue
             except Exception: