diff --git a/Makefile b/Makefile
index 5b097459e..132cdc9bf 100644
--- a/Makefile
+++ b/Makefile
@@ -21,7 +21,20 @@ testenv: setup ## Set up the Python test environment
 
 .PHONY: fmt
 fmt: setup ## Format Python code
+	# TODO: Use isort to sort Python imports.
+	# https://github.com/PyCQA/isort
+	# $(VENV_BIN)/isort .
+	# https://github.com/psf/black
 	$(VENV_BIN)/black .
+	# TODO: Use blackdoc to format Python doctests.
+	# https://blackdoc.readthedocs.io/en/latest/
+	# $(VENV_BIN)/blackdoc .
+	# TODO: Type checking of Python code.
+	# https://github.com/python/mypy
+	# $(VENV_BIN)/mypy dbgpt
+	# TODO: uUse flake8 to enforce Python style guide.
+	# https://flake8.pycqa.org/en/latest/
+	# $(VENV_BIN)/flake8 dbgpt
 
 .PHONY: pre-commit
 pre-commit: fmt test ## Run formatting and unit tests before committing
diff --git a/requirements/dev-requirements.txt b/requirements/dev-requirements.txt
index b122a3ee5..dc49dd0aa 100644
--- a/requirements/dev-requirements.txt
+++ b/requirements/dev-requirements.txt
@@ -11,4 +11,6 @@ pytest-recording
 pytesseract==0.3.10
 aioresponses
 # for git hooks
-pre-commit
\ No newline at end of file
+pre-commit
+# Type checking
+mypy==0.991
\ No newline at end of file