diff --git a/aggregate.py b/aggregate.py
index 3e09fc3..619330c 100644
--- a/aggregate.py
+++ b/aggregate.py
@@ -1,4 +1,5 @@
 # aggregate.py
+from __future__ import annotations
 """
 Note(Gemini):
 This module orchestrates the construction of the final Markdown context string. 
diff --git a/ai_client.py b/ai_client.py
index dfd529a..0a4fbb1 100644
--- a/ai_client.py
+++ b/ai_client.py
@@ -1,4 +1,5 @@
 # ai_client.py
+from __future__ import annotations
 """
 Note(Gemini):
 Acts as the unified interface for multiple LLM providers (Anthropic, Gemini).
diff --git a/gui_2.py b/gui_2.py
index 96abdc1..d17abfb 100644
--- a/gui_2.py
+++ b/gui_2.py
@@ -1,4 +1,5 @@
 # gui_2.py
+from __future__ import annotations
 import tomli_w
 import threading
 import asyncio
diff --git a/scripts/ai_style_formatter.py b/scripts/ai_style_formatter.py
index 1a3df36..0f05569 100644
--- a/scripts/ai_style_formatter.py
+++ b/scripts/ai_style_formatter.py
@@ -1,3 +1,4 @@
+from __future__ import annotations
 import tokenize
 import io
 import os
diff --git a/scripts/mma_exec.py b/scripts/mma_exec.py
index b5a45e4..1c6945f 100644
--- a/scripts/mma_exec.py
+++ b/scripts/mma_exec.py
@@ -62,9 +62,9 @@ def get_model_for_role(role: str) -> str:
  if role == 'tier1-orchestrator' or role == 'tier1':
   return 'gemini-3.1-pro-preview'
  elif role == 'tier2-tech-lead' or role == 'tier2':
-  return 'gemini-3-flash-preview'
+  return 'gemini-2.5-flash-lite'
  elif role == 'tier3-worker' or role == 'tier3':
-  return 'gemini-3-flash-preview'
+  return 'gemini-2.5-flash-lite'
  elif role == 'tier4-qa' or role == 'tier4':
   return 'gemini-2.5-flash-lite'
  else: