diff --git a/.gitignore b/.gitignore
index baa31a543..71958d693 100644
--- a/.gitignore
+++ b/.gitignore
@@ -58,3 +58,4 @@ mini-swe-agent/
 # Nix
 .direnv/
 result
+.aider*
diff --git a/scripts/syntax_guard.py b/scripts/syntax_guard.py
index 7c41dc9b4..47cc4feef 100755
--- a/scripts/syntax_guard.py
+++ b/scripts/syntax_guard.py
@@ -3,18 +3,36 @@
 import py_compile
 import sys
 from pathlib import Path
+from colorama import Fore, Style, init
+
+init(autoreset=True)
 
 errors = []
+total_files = 0
+large_files = []
+
 for p in Path(".").rglob("*.py"):
     if ".venv" in p.parts or "__pycache__" in p.parts:
         continue
+
+    total_files += 1
+    if p.stat().st_size > 10 * 1024 * 1024:  # 10MB
+        large_files.append(p)
+
     try:
         py_compile.compile(str(p), doraise=True)
     except py_compile.PyCompileError as e:
         errors.append(f"{p}: {e}")
-        print(f"SYNTAX ERROR: {p}: {e}", file=sys.stderr)
+        print(f"{Fore.RED}SYNTAX ERROR: {p}{Style.RESET_ALL}: {e}", file=sys.stderr)
+        sys.exit(1)  # Exit early on first error
 
 if errors:
     print(f"\n{len(errors)} file(s) with syntax errors", file=sys.stderr)
     sys.exit(1)
-print("All Python files compile successfully")
+
+if large_files:
+    print(f"{Fore.YELLOW}Large files (>10MB) detected:{Style.RESET_ALL}")
+    for f in large_files:
+        print(f"  - {f}")
+
+print("✅ All Python files compile successfully")