diff --git a/auto-claude/analyzers/route_detector.py b/auto-claude/analyzers/route_detector.py
index e4dfd33d..ea0fd6b3 100644
--- a/auto-claude/analyzers/route_detector.py
+++ b/auto-claude/analyzers/route_detector.py
@@ -18,9 +18,16 @@ from .base import BaseAnalyzer
 class RouteDetector(BaseAnalyzer):
     """Detects API routes across multiple web frameworks."""
 
+    # Directories to exclude from route detection
+    EXCLUDED_DIRS = {'node_modules', '.venv', 'venv', '__pycache__', '.git'}
+
     def __init__(self, path: Path):
         super().__init__(path)
 
+    def _should_include_file(self, file_path: Path) -> bool:
+        """Check if file should be included (not in excluded directories)."""
+        return not any(part in self.EXCLUDED_DIRS for part in file_path.parts)
+
     def detect_all_routes(self) -> list[dict]:
         """Detect all API routes across different frameworks."""
         routes = []
@@ -51,7 +58,7 @@ class RouteDetector(BaseAnalyzer):
     def _detect_fastapi_routes(self) -> list[dict]:
         """Detect FastAPI routes."""
         routes = []
-        files_to_check = list(self.path.glob("**/*.py"))
+        files_to_check = [f for f in self.path.glob("**/*.py") if self._should_include_file(f)]
 
         for file_path in files_to_check:
             try:
@@ -113,7 +120,7 @@ class RouteDetector(BaseAnalyzer):
     def _detect_flask_routes(self) -> list[dict]:
         """Detect Flask routes."""
         routes = []
-        files_to_check = list(self.path.glob("**/*.py"))
+        files_to_check = [f for f in self.path.glob("**/*.py") if self._should_include_file(f)]
 
         for file_path in files_to_check:
             try:
@@ -160,7 +167,7 @@ class RouteDetector(BaseAnalyzer):
     def _detect_django_routes(self) -> list[dict]:
         """Detect Django routes from urls.py files."""
         routes = []
-        url_files = list(self.path.glob("**/urls.py"))
+        url_files = [f for f in self.path.glob("**/urls.py") if self._should_include_file(f)]
 
         for file_path in url_files:
             try:
@@ -194,10 +201,9 @@ class RouteDetector(BaseAnalyzer):
     def _detect_express_routes(self) -> list[dict]:
         """Detect Express/Fastify/Koa routes."""
         routes = []
-        files_to_check = list(self.path.glob("**/*.js")) + list(
-            self.path.glob("**/*.ts")
-        )
-
+        js_files = [f for f in self.path.glob("**/*.js") if self._should_include_file(f)]
+        ts_files = [f for f in self.path.glob("**/*.ts") if self._should_include_file(f)]
+        files_to_check = js_files + ts_files
         for file_path in files_to_check:
             try:
                 content = file_path.read_text()
@@ -250,7 +256,8 @@ class RouteDetector(BaseAnalyzer):
         app_dir = self.path / "app"
         if app_dir.exists():
             # Find all route.ts/js files
-            for route_file in app_dir.glob("**/route.{ts,js,tsx,jsx}"):
+            route_files = [f for f in app_dir.glob("**/route.{ts,js,tsx,jsx}") if self._should_include_file(f)]
+            for route_file in route_files:
                 # Convert file path to route path
                 # app/api/users/[id]/route.ts -> /api/users/:id
                 relative_path = route_file.parent.relative_to(app_dir)
@@ -283,9 +290,9 @@ class RouteDetector(BaseAnalyzer):
         # Next.js Pages Router (pages/api directory)
         pages_api = self.path / "pages" / "api"
         if pages_api.exists():
-            for api_file in pages_api.glob("**/*.{ts,js,tsx,jsx}"):
-                if api_file.name.startswith("_"):
-                    continue
+            api_files = [f for f in pages_api.glob("**/*.{ts,js,tsx,jsx}") if self._should_include_file(f)]
+            for api_file in api_files:
+                if api_file.name.startswith('_'):                    continue
 
                 # Convert file path to route
                 relative_path = api_file.relative_to(pages_api)
@@ -314,7 +321,7 @@ class RouteDetector(BaseAnalyzer):
     def _detect_go_routes(self) -> list[dict]:
         """Detect Go framework routes (Gin, Echo, Chi, Fiber)."""
         routes = []
-        go_files = list(self.path.glob("**/*.go"))
+        go_files = [f for f in self.path.glob("**/*.go") if self._should_include_file(f)]
 
         for file_path in go_files:
             try:
@@ -348,7 +355,7 @@ class RouteDetector(BaseAnalyzer):
     def _detect_rust_routes(self) -> list[dict]:
         """Detect Rust framework routes (Axum, Actix)."""
         routes = []
-        rust_files = list(self.path.glob("**/*.rs"))
+        rust_files = [f for f in self.path.glob("**/*.rs") if self._should_include_file(f)]
 
         for file_path in rust_files:
             try: