diff --git a/codechunk/core/parser.py b/codechunk/core/parser.py
index ad18d88..6d78215 100644
--- a/codechunk/core/parser.py
+++ b/codechunk/core/parser.py
@@ -1,8 +1,7 @@
 from pathlib import Path
-from typing import List, Optional, Dict, Any
-from dataclasses import dataclass, field
-import re
+from typing import Optional
 import os
+import re
 from codechunk.core.chunking import ParsedChunk, ChunkMetadata
 
 
@@ -41,23 +40,23 @@ LANGUAGE_EXTENSIONS = {
 
 class CodeParser:
     def __init__(self):
-        self.files: List[Path] = []
-        self.file_contents: Dict[Path, str] = {}
+        self.files: list[Path] = []
+        self.file_contents: dict[Path, str] = {}
 
     def detect_language(self, file_path: Path) -> Optional[str]:
         """Detect programming language from file extension."""
         ext = file_path.suffix.lower()
         return LANGUAGE_EXTENSIONS.get(ext)
 
-    def discover_files(self, project_path: Path, include_patterns: List[str],
-                       exclude_patterns: List[str]) -> None:
+    def discover_files(self, project_path: Path, include_patterns: list[str],
+                       exclude_patterns: list[str]) -> None:
         """Discover source files in project directory."""
         from fnmatch import fnmatch
 
         self.files = []
         project_path = Path(project_path)
 
-        for root, dirs, files in os.walk(project_path):
+        for root, _dirs, files in os.walk(project_path):
             root_path = Path(root)
 
             for file_name in files:
@@ -96,7 +95,7 @@ class CodeParser:
         self.file_contents[file_path] = content
         return content
 
-    def parse_all(self) -> List[ParsedChunk]:
+    def parse_all(self) -> list[ParsedChunk]:
         """Parse all discovered files."""
         chunks = []
         for file_path in self.files:
@@ -104,7 +103,7 @@ class CodeParser:
             chunks.extend(file_chunks)
         return chunks
 
-    def parse_file(self, file_path: Path) -> List[ParsedChunk]:
+    def parse_file(self, file_path: Path) -> list[ParsedChunk]:
         """Parse a single file and extract chunks."""
         language = self.detect_language(file_path)
         if not language:
@@ -124,7 +123,7 @@ class CodeParser:
         else:
             return self._parse_generic(file_path, content, lines, language)
 
-    def _parse_python(self, file_path: Path, content: str, lines: List[str]) -> List[ParsedChunk]:
+    def _parse_python(self, file_path: Path, content: str, lines: list[str]) -> list[ParsedChunk]:
         """Parse Python file for classes and functions."""
         chunks = []
         current_class = None
@@ -284,8 +283,8 @@ class CodeParser:
 
         return chunks
 
-    def _parse_js_like(self, file_path: Path, content: str, lines: List[str],
-                       language: str) -> List[ParsedChunk]:
+    def _parse_js_like(self, file_path: Path, content: str, lines: list[str],
+                       language: str) -> list[ParsedChunk]:
         """Parse JavaScript/TypeScript file."""
         chunks = []
         imports = self._extract_imports(content, language)
@@ -392,7 +391,7 @@ class CodeParser:
 
         return chunks
 
-    def _parse_go(self, file_path: Path, content: str, lines: List[str]) -> List[ParsedChunk]:
+    def _parse_go(self, file_path: Path, content: str, lines: list[str]) -> list[ParsedChunk]:
         """Parse Go file."""
         chunks = []
         imports = self._extract_imports(content, "go")
@@ -460,7 +459,7 @@ class CodeParser:
 
         return chunks
 
-    def _parse_rust(self, file_path: Path, content: str, lines: List[str]) -> List[ParsedChunk]:
+    def _parse_rust(self, file_path: Path, content: str, lines: list[str]) -> list[ParsedChunk]:
         """Parse Rust file."""
         chunks = []
         imports = self._extract_imports(content, "rust")
@@ -528,8 +527,8 @@ class CodeParser:
 
         return chunks
 
-    def _parse_generic(self, file_path: Path, content: str, lines: List[str],
-                       language: str) -> List[ParsedChunk]:
+    def _parse_generic(self, file_path: Path, content: str, lines: list[str],
+                       language: str) -> list[ParsedChunk]:
         """Generic parser for unknown languages."""
         chunks = []
         imports = self._extract_imports(content, language)
@@ -554,7 +553,7 @@ class CodeParser:
 
         return chunks
 
-    def _extract_imports(self, content: str, language: str) -> List[str]:
+    def _extract_imports(self, content: str, language: str) -> list[str]:
         """Extract import statements from content."""
         imports = []
 
@@ -588,7 +587,7 @@ class CodeParser:
 
         return list(set(imports))
 
-    def _extract_docstring(self, lines: List[str]) -> Optional[str]:
+    def _extract_docstring(self, lines: list[str]) -> Optional[str]:
         """Extract docstring from lines."""
         if not lines:
             return None
@@ -618,7 +617,7 @@ class CodeParser:
 
         return None
 
-    def _parse_params(self, params_str: str) -> List[str]:
+    def _parse_params(self, params_str: str) -> list[str]:
         """Parse function parameters."""
         if not params_str.strip():
             return []