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..d9c36acc0 100755
--- a/scripts/syntax_guard.py
+++ b/scripts/syntax_guard.py
@@ -5,7 +5,14 @@ import sys
 from pathlib import Path
 
 errors = []
-for p in Path(".").rglob("*.py"):
+script_dir = Path(__file__).resolve().parent
+repo_root = script_dir
+while not (repo_root / ".git").is_dir():
+    repo_root = repo_root.parent
+    if repo_root == repo_root.parent:
+        break  # Prevent infinite loop if not in a git repo
+
+for p in repo_root.rglob("*.py"):
     if ".venv" in p.parts or "__pycache__" in p.parts:
         continue
     try: