diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 616bc9e1c..8c9054b98 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -79,6 +79,13 @@ jobs:
       run: |
         echo "github.event_name: ${{ github.event_name }}"
 
+    - name: Get changed files
+      id: changed-files
+      uses: tj-actions/changed-files@v47
+
+    - name: Print changed files
+      run: echo "${{ steps.changed-files.outputs.all_changed_files }}"
+
     - name: Add 8G swap (Ubuntu)
       # Prevent hitting runner's resource limits when running clang-tidy
       if: runner.os == 'Linux'
@@ -215,6 +222,13 @@ jobs:
     - name: make checktws (check trailing whitespace)
       run: make checktws
 
+    # - name: make buildext
+    #   run: |
+    #     make buildext \
+    #       ${JOB_MAKE_ARGS} \
+    #       CMAKE_BUILD_TYPE=${{ matrix.cmake_build_type }} \
+    #       CMAKE_ARGS="-DPYTHON_EXECUTABLE=$(which python3) -DUSE_PYTEST_HELPER_BINDING=ON"
+
     - name: make pilot
       run: |
         make pilot \
diff --git a/CMakeLists.txt b/CMakeLists.txt
index e183008aa..921482a6a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -64,7 +64,7 @@ find_program(
 )
 if(USE_CLANG_TIDY)
     if(CLANG_TIDY_EXE)
-        set(DO_CLANG_TIDY "${CLANG_TIDY_EXE}" "-header-filter=/cpp/.\*/modmesh/.\*" "--extra-arg=-std=c++2b")
+        set(DO_CLANG_TIDY "${CLANG_TIDY_EXE}" "--extra-arg=-std=c++2b")
         if(LINT_AS_ERRORS)
             set(DO_CLANG_TIDY "${DO_CLANG_TIDY}" "-warnings-as-errors=*")
         endif()
diff --git a/cpp/binary/pilot/CMakeLists.txt b/cpp/binary/pilot/CMakeLists.txt
index 0760941c7..92ef6f367 100644
--- a/cpp/binary/pilot/CMakeLists.txt
+++ b/cpp/binary/pilot/CMakeLists.txt
@@ -76,6 +76,7 @@ target_compile_options(
 )
 
 if(CLANG_TIDY_EXE AND USE_CLANG_TIDY)
+    set(DO_CLANG_TIDY "${CLANG_TIDY_EXE}" "-header-filter=/cpp/modmesh/python/.*")
     set_target_properties(
         pilot PROPERTIES
         CXX_CLANG_TIDY "${DO_CLANG_TIDY}"
@@ -114,4 +115,4 @@ install(TARGETS pilot
     RUNTIME DESTINATION "${INSTALL_PILOTDIR}"
     BUNDLE DESTINATION "${INSTALL_PILOTDIR}"
     LIBRARY DESTINATION "${INSTALL_PILOTDIR}"
-)
\ No newline at end of file
+)
diff --git a/cpp/binary/pymod_modmesh/CMakeLists.txt b/cpp/binary/pymod_modmesh/CMakeLists.txt
index b44536493..9f9a46149 100644
--- a/cpp/binary/pymod_modmesh/CMakeLists.txt
+++ b/cpp/binary/pymod_modmesh/CMakeLists.txt
@@ -27,6 +27,7 @@ target_compile_options(
 )
 
 if (CLANG_TIDY_EXE AND USE_CLANG_TIDY)
+    set(DO_CLANG_TIDY "${CLANG_TIDY_EXE}" "-header-filter=/cpp/modmesh/python/.*")
     set_target_properties(
         _modmesh PROPERTIES
         CXX_CLANG_TIDY "${DO_CLANG_TIDY}"
diff --git a/cpp/modmesh/CMakeLists.txt b/cpp/modmesh/CMakeLists.txt
index a8f776785..5f0916fb3 100644
--- a/cpp/modmesh/CMakeLists.txt
+++ b/cpp/modmesh/CMakeLists.txt
@@ -142,6 +142,7 @@ endif () # BUILD_QT
 set_target_properties(modmesh_primary PROPERTIES POSITION_INDEPENDENT_CODE ON)
 
 if (CLANG_TIDY_EXE AND USE_CLANG_TIDY)
+    set(DO_CLANG_TIDY "${CLANG_TIDY_EXE}" "-header-filter=/cpp/modmesh/.*")
     set_target_properties(
         modmesh_primary PROPERTIES
         CXX_CLANG_TIDY "${DO_CLANG_TIDY}"