diff --git a/core/tool_tier_loader.py b/core/tool_tier_loader.py
index 9d46c8a..57bed1e 100644
--- a/core/tool_tier_loader.py
+++ b/core/tool_tier_loader.py
@@ -13,7 +13,7 @@ import yaml
 
 logger = logging.getLogger(__name__)
 
-TierLevel = Literal["core", "extended", "complete", "leo"]
+TierLevel = Literal["core", "extended", "complete"]
 
 
 class ToolTierLoader:
@@ -109,15 +109,6 @@ class ToolTierLoader:
         Returns:
             List of tool names up to the specified tier level
         """
-        # Special handling for standalone tiers (e.g., "leo")
-        # These tiers are not cumulative and contain their own tool set
-        standalone_tiers = ["leo"]
-
-        if tier in standalone_tiers:
-            # For standalone tiers, return only the tools in that tier
-            return self.get_tools_for_tier(tier, services)
-
-        # For cumulative tiers (core, extended, complete), accumulate tools
         tier_order = ["core", "extended", "complete"]
         max_tier_index = tier_order.index(tier)
 
diff --git a/core/tool_tiers.yaml b/core/tool_tiers.yaml
index bd60d2a..38edd12 100644
--- a/core/tool_tiers.yaml
+++ b/core/tool_tiers.yaml
@@ -21,12 +21,6 @@ gmail:
     - batch_modify_gmail_message_labels
     - start_google_auth
 
-  leo:
-    - search_gmail_messages
-    - get_gmail_message_content
-    - get_gmail_messages_content_batch
-    - start_google_auth
-
 drive:
   core:
     - search_drive_files
@@ -48,18 +42,6 @@ drive:
     - get_drive_file_permissions
     - check_drive_file_public_access
 
-  leo:
-    - search_drive_files
-    - get_drive_file_content
-    - get_drive_file_download_url
-    - create_drive_file
-    - import_to_google_doc
-    - share_drive_file
-    - get_drive_shareable_link
-    - list_drive_items
-    - update_drive_file
-    - get_drive_file_permissions
-
 calendar:
   core:
     - list_calendars
@@ -96,24 +78,6 @@ docs:
     - reply_to_document_comment
     - resolve_document_comment
 
-  leo:
-    - get_doc_content
-    - create_doc
-    - modify_doc_text
-    - export_doc_to_pdf
-    - search_docs
-    - find_and_replace_doc
-    - list_docs_in_folder
-    - insert_doc_elements
-    - format_paragraph_style
-    - apply_heading_style
-    - insert_doc_image
-    - update_doc_headers_footers
-    - batch_update_doc
-    - inspect_doc_structure
-    - create_table_with_data
-    - debug_table_structure
-
 sheets:
   core:
     - create_spreadsheet
@@ -163,13 +127,6 @@ slides:
     - reply_to_presentation_comment
     - resolve_presentation_comment
 
-  leo:
-    - create_presentation
-    - get_presentation
-    - batch_update_presentation
-    - get_page
-    - get_page_thumbnail
-
 tasks:
   core:
     - get_task
diff --git a/main.py b/main.py
index 47c053a..9c43146 100644
--- a/main.py
+++ b/main.py
@@ -130,7 +130,7 @@ def main():
     )
     parser.add_argument(
         "--tool-tier",
-        choices=["core", "extended", "complete", "leo"],
+        choices=["core", "extended", "complete"],
         help="Load tools based on tier level. Can be combined with --tools to filter services.",
     )
     parser.add_argument(