diff --git a/tools.py b/tools.py
index 5a769df..00ab4aa 100644
--- a/tools.py
+++ b/tools.py
@@ -16,6 +16,8 @@ def format_relative_time(timestamp: float) -> str:
     now = time.time()
     diff = now - timestamp
     seconds = int(diff)
+    if seconds < 0:
+        return "In the future"
     if seconds < 60:
         return "Just now"
     minutes = seconds // 60
@@ -27,11 +29,11 @@ def format_relative_time(timestamp: float) -> str:
     days = hours // 24
     if days == 1:
         return "Yesterday"
-    if days < 7:
+    if days < 30:
         return f"{days}d ago"
-    weeks = days // 7
-    if weeks < 4:
-        return f"{weeks}w ago"
+    months = days // 30
+    if months < 12:
+        return f"{months}mo ago"
     dt = datetime.datetime.fromtimestamp(timestamp)
     return dt.strftime('%Y-%m-%d')
 
@@ -166,7 +168,6 @@ async def list_thumbnails_handler(args: Dict[str, Any]):
         x = padding + col * (thumb_size + padding)
         y = padding + row * (thumb_size + label_height + padding)
         
-        # Continuous numbering across pages
         global_index = start_idx + i + 1
         
         try:
@@ -178,11 +179,17 @@ async def list_thumbnails_handler(args: Dict[str, Any]):
                 canvas.paste(img, (x + off_x, y + off_y))
             
             mod_time_rel = format_relative_time(info["mtime"])
-            size_kb = info["size"] / 1024
-            file_details.append(f"{global_index}. {filename} | {width}x{height} | {size_kb:.1f}KB | {mod_time_rel}")
+            file_details.append(f"{global_index}. {filename} | {width}x{height} | {mod_time_rel}")
             
             text = str(global_index)
-            draw.text((x + 2, y + thumb_size + 2), text, fill=(255, 255, 255), font=font)
+            if font:
+                bbox = draw.textbbox((0, 0), text, font=font)
+                text_w = bbox[2] - bbox[0]
+            else:
+                text_w = len(text) * 7
+            
+            text_x = x + (thumb_size - text_w) // 2
+            draw.text((text_x, y + thumb_size + 2), text, fill=(255, 255, 255), font=font)
             
         except Exception as e:
             logger.error(f"Failed to process {filename}: {e}")
@@ -207,6 +214,7 @@ async def list_directory_details_handler(args: Dict[str, Any]):
     path = args.get("path")
     page = int(args.get("page", 1))
     page_size = int(args.get("page_size", 64))
+    sort_by = args.get("sort_by", "mtime")
     
     if not path:
         return {"text": "Error: Missing path argument"}
@@ -234,7 +242,9 @@ async def list_directory_details_handler(args: Dict[str, Any]):
                     "type": "dir",
                     "name": entry,
                     "info": f"{count} items",
-                    "mtime": mtime_rel
+                    "mtime": mtime_rel,
+                    "mtime_raw": stats.st_mtime,
+                    "size": stats.st_size
                 })
             else:
                 size_kb = stats.st_size / 1024
@@ -242,16 +252,33 @@ async def list_directory_details_handler(args: Dict[str, Any]):
                     "type": "file",
                     "name": entry,
                     "info": f"{size_kb:.1f}KB",
-                    "mtime": mtime_rel
+                    "mtime": mtime_rel,
+                    "mtime_raw": stats.st_mtime,
+                    "size": stats.st_size
                 })
         except Exception as e:
             logger.error(f"Could not stat {entry}: {e}")
 
-    all_items.sort(key=lambda x: (x["type"] == "file", x["name"].lower()))
+    if sort_by == "mtime":
+        all_items.sort(key=lambda x: (x["type"] == "file", -x["mtime_raw"]))
+    elif sort_by == "size":
+        all_items.sort(key=lambda x: (x["type"] == "file", -x["size"]))
+    else:
+        all_items.sort(key=lambda x: (x["type"] == "file", x["name"].lower()))
 
     total_items = len(all_items)
-    start_idx = (page - 1) * page_size
-    end_idx = start_idx + page_size
+    
+    if total_items <= 100:
+        start_idx = 0
+        end_idx = total_items
+        effective_page = 1
+        total_pages = 1
+    else:
+        start_idx = (page - 1) * page_size
+        end_idx = start_idx + page_size
+        total_pages = (total_items + page_size - 1) // page_size
+        effective_page = page
+
     paged_items = all_items[start_idx:end_idx]
 
     if not paged_items:
@@ -264,8 +291,7 @@ async def list_directory_details_handler(args: Dict[str, Any]):
         else:
             output.append(f"      {item['name']} | {item['info']} | {item['mtime']}")
 
-    total_pages = (total_items + page_size - 1) // page_size
-    header = f"Listing of {path}\nPage {page} of {total_pages} ({total_items} total items). Showing {start_idx+1}-{min(end_idx, total_items)}."
+    header = f"Listing of {path}\nPage {effective_page} of {total_pages} ({total_items} total items). Showing {start_idx+1}-{min(end_idx, total_items)}."
     
     return {"text": f"{header}\n\n" + "\n".join(output)}
 
@@ -307,13 +333,14 @@ TOOL_REGISTRY = [
     ),
     Tool(
         name="list_directory",
-        description="Lists the contents of a directory in a file browser format. Directories first, then files. Supports pagination.",
+        description="Lists the contents of a directory in a file browser format. Directories first, then files. Supports pagination and sorting.",
         schema={
             "type": "object",
             "properties": {
                 "path": {"type": "string", "description": "Path to the directory to list"},
                 "page": {"type": "integer", "description": "The page number to retrieve (1-indexed)", "default": 1},
                 "page_size": {"type": "integer", "description": "Number of items per page", "default": 64},
+                "sort_by": {"type": "string", "description": "Sort order: 'mtime' (newest first, default), 'name' (alphabetical), or 'size' (largest first)", "default": "mtime"},
             },
             "required": ["path"],
         },