diff --git a/memory_system.py b/memory_system.py
index ec88f2b..5e43cea 100644
--- a/memory_system.py
+++ b/memory_system.py
@@ -7,6 +7,7 @@ import asyncio
 import hashlib
 import json
 import logging
+import statistics
 import time
 from collections import OrderedDict
 from datetime import datetime, timezone
@@ -820,8 +821,8 @@ class LLMConsolidationService:
         if not user_memories:
             logger.info("💭 No existing memories found for consolidation")
             return []
-        else:
-            logger.info(f"🚀 Reusing cached user memories for consolidation: {len(user_memories)} memories")
+
+        logger.info(f"🚀 Reusing cached user memories for consolidation: {len(user_memories)} memories")
 
         try:
             all_similarities, _, _ = await self.memory_system._compute_similarities(user_message, user_id, user_memories)
@@ -1293,7 +1294,7 @@ class Filter:
 
         top_score = max(scores)
         lowest_score = min(scores)
-        median_score = sorted(scores)[len(scores) // 2]
+        median_score = statistics.median(scores)
 
         context_label = "📊 Consolidation candidate memories" if context_type == "consolidation" else "📊 Retrieved memories"
         max_scores_to_show = int(self.valves.max_memories_returned * Constants.EXTENDED_MAX_MEMORY_MULTIPLIER)
@@ -1304,16 +1305,8 @@ class Filter:
         logger.info(f"Scores: [{scores_str}{suffix}]")
 
     def _build_operation_details(self, created_count: int, updated_count: int, deleted_count: int) -> List[str]:
-        """Build operation details list with consistent formatting."""
-        operation_details = []
-
         operations = [(created_count, "📝 Created"), (updated_count, "✏️ Updated"), (deleted_count, "🗑️ Deleted")]
-
-        for count, label in operations:
-            if count > 0:
-                operation_details.append(f"{label} {count}")
-
-        return operation_details
+        return [f"{label} {count}" for count, label in operations if count > 0]
 
     def _cache_key(self, cache_type: str, user_id: str, content: Optional[str] = None) -> str:
         """Unified cache key generation for all cache types."""
@@ -1522,8 +1515,7 @@ class Filter:
 
             if user_memories is None:
                 user_memories = await self._get_user_memories(user_id)
-                if user_memories:
-                    await self._cache_manager.put(user_id, self._cache_manager.MEMORY_CACHE, memory_cache_key, user_memories)
+                await self._cache_manager.put(user_id, self._cache_manager.MEMORY_CACHE, memory_cache_key, user_memories)
 
             retrieval_result = await self._retrieve_relevant_memories(user_message, user_id, user_memories, __event_emitter__)
             memories = retrieval_result.get("memories", [])
@@ -1632,36 +1624,41 @@ class Filter:
         """Execute a single memory operation."""
         try:
             if operation.operation == Models.MemoryOperationType.CREATE:
-                if not operation.content.strip():
+                content_stripped = operation.content.strip()
+                if not content_stripped:
                     logger.warning(f"⚠️ Skipping CREATE operation: empty content")
                     return Models.OperationResult.SKIPPED_EMPTY_CONTENT.value
 
                 await asyncio.wait_for(
-                    asyncio.to_thread(Memories.insert_new_memory, user.id, operation.content.strip()), timeout=Constants.DATABASE_OPERATION_TIMEOUT_SEC
+                    asyncio.to_thread(Memories.insert_new_memory, user.id, content_stripped), timeout=Constants.DATABASE_OPERATION_TIMEOUT_SEC
                 )
                 return Models.MemoryOperationType.CREATE.value
 
             elif operation.operation == Models.MemoryOperationType.UPDATE:
-                if not operation.id.strip():
+                id_stripped = operation.id.strip()
+                if not id_stripped:
                     logger.warning(f"⚠️ Skipping UPDATE operation: empty ID")
                     return Models.OperationResult.SKIPPED_EMPTY_ID.value
-                if not operation.content.strip():
-                    logger.warning(f"⚠️ Skipping UPDATE operation for {operation.id}: empty content")
+                
+                content_stripped = operation.content.strip()
+                if not content_stripped:
+                    logger.warning(f"⚠️ Skipping UPDATE operation for {id_stripped}: empty content")
                     return Models.OperationResult.SKIPPED_EMPTY_CONTENT.value
 
                 await asyncio.wait_for(
-                    asyncio.to_thread(Memories.update_memory_by_id_and_user_id, operation.id, user.id, operation.content.strip()),
+                    asyncio.to_thread(Memories.update_memory_by_id_and_user_id, id_stripped, user.id, content_stripped),
                     timeout=Constants.DATABASE_OPERATION_TIMEOUT_SEC,
                 )
                 return Models.MemoryOperationType.UPDATE.value
 
             elif operation.operation == Models.MemoryOperationType.DELETE:
-                if not operation.id.strip():
+                id_stripped = operation.id.strip()
+                if not id_stripped:
                     logger.warning(f"⚠️ Skipping DELETE operation: empty ID")
                     return Models.OperationResult.SKIPPED_EMPTY_ID.value
 
                 await asyncio.wait_for(
-                    asyncio.to_thread(Memories.delete_memory_by_id_and_user_id, operation.id, user.id), timeout=Constants.DATABASE_OPERATION_TIMEOUT_SEC
+                    asyncio.to_thread(Memories.delete_memory_by_id_and_user_id, id_stripped, user.id), timeout=Constants.DATABASE_OPERATION_TIMEOUT_SEC
                 )
                 return Models.MemoryOperationType.DELETE.value
             else: