diff --git a/README.md b/README.md
index 9dedc68..c773d3d 100644
--- a/README.md
+++ b/README.md
@@ -21,6 +21,7 @@ Custom flake8 rules
 * TUT300 - no expressions in the main body, unless under __name__ == "__main__", prevents global side effects
 * TUT4:
     * TUT400 - detect strings that were likely meant to be f-strings
+        * TODO: we should exclude regex-es
     * TUT410 - detect redundant type annotations
     * TUT411 - detect redundant type annotations for generic assignment
         * Don't do `x: Foo[bar] = Foo()` ; do `x = Foo[bar]()`
@@ -45,6 +46,9 @@ Custom flake8 rules
         * All the same exceptions as 511
     * TUT520 - `NotImplemented` is only allowed within a dunder method on a class
         * Any other usage is very likely incorrect
+    * TUT530 - a constructor must return `Self` type rather than the class type
+        * This encourages good use of constructors that play well with inheritence
+        * We detect methods whose return type includes the class type without having any input of the type
 * TUT6
     * TUT610 - a function definition allows too many positional arguments (configurable with `max-definition-positional-args`)
     * TUT620 - a function invocation uses too many positional arguments (configurable with `max-invocation-positional-args`)
diff --git a/poetry.lock b/poetry.lock
index 2893ec6..e8b8fa1 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,18 +1,36 @@
+# This file is automatically @generated by Poetry 1.8.3 and should not be changed by hand.
+
 [[package]]
 name = "astpretty"
 version = "3.0.0"
 description = "Pretty print the output of python stdlib `ast.parse`."
-category = "dev"
 optional = false
 python-versions = ">=3.8"
+files = [
+    {file = "astpretty-3.0.0-py2.py3-none-any.whl", hash = "sha256:15bfd47593667169485a1fa7938b8de9445b11057d6f2b6e214b2f70667f94b6"},
+    {file = "astpretty-3.0.0.tar.gz", hash = "sha256:b08c95f32e5994454ea99882ff3c4a0afc8254c38998a0ed4b479dba448dc581"},
+]
 
 [[package]]
 name = "black"
 version = "22.12.0"
 description = "The uncompromising code formatter."
-category = "dev"
 optional = false
 python-versions = ">=3.7"
+files = [
+    {file = "black-22.12.0-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:9eedd20838bd5d75b80c9f5487dbcb06836a43833a37846cf1d8c1cc01cef59d"},
+    {file = "black-22.12.0-cp310-cp310-win_amd64.whl", hash = "sha256:159a46a4947f73387b4d83e87ea006dbb2337eab6c879620a3ba52699b1f4351"},
+    {file = "black-22.12.0-cp311-cp311-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:d30b212bffeb1e252b31dd269dfae69dd17e06d92b87ad26e23890f3efea366f"},
+    {file = "black-22.12.0-cp311-cp311-win_amd64.whl", hash = "sha256:7412e75863aa5c5411886804678b7d083c7c28421210180d67dfd8cf1221e1f4"},
+    {file = "black-22.12.0-cp37-cp37m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:c116eed0efb9ff870ded8b62fe9f28dd61ef6e9ddd28d83d7d264a38417dcee2"},
+    {file = "black-22.12.0-cp37-cp37m-win_amd64.whl", hash = "sha256:1f58cbe16dfe8c12b7434e50ff889fa479072096d79f0a7f25e4ab8e94cd8350"},
+    {file = "black-22.12.0-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:77d86c9f3db9b1bf6761244bc0b3572a546f5fe37917a044e02f3166d5aafa7d"},
+    {file = "black-22.12.0-cp38-cp38-win_amd64.whl", hash = "sha256:82d9fe8fee3401e02e79767016b4907820a7dc28d70d137eb397b92ef3cc5bfc"},
+    {file = "black-22.12.0-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:101c69b23df9b44247bd88e1d7e90154336ac4992502d4197bdac35dd7ee3320"},
+    {file = "black-22.12.0-cp39-cp39-win_amd64.whl", hash = "sha256:559c7a1ba9a006226f09e4916060982fd27334ae1998e7a38b3f33a37f7a2148"},
+    {file = "black-22.12.0-py3-none-any.whl", hash = "sha256:436cc9167dd28040ad90d3b404aec22cedf24a6e4d7de221bec2730ec0c97bcf"},
+    {file = "black-22.12.0.tar.gz", hash = "sha256:229351e5a18ca30f447bf724d007f890f97e13af070bb6ad4c0a441cd7596a2f"},
+]
 
 [package.dependencies]
 click = ">=8.0.0"
@@ -31,17 +49,23 @@ uvloop = ["uvloop (>=0.15.2)"]
 name = "cfgv"
 version = "3.3.1"
 description = "Validate configuration and produce human readable error messages."
-category = "dev"
 optional = false
 python-versions = ">=3.6.1"
+files = [
+    {file = "cfgv-3.3.1-py2.py3-none-any.whl", hash = "sha256:c6a0883f3917a037485059700b9e75da2464e6c27051014ad85ba6aaa5884426"},
+    {file = "cfgv-3.3.1.tar.gz", hash = "sha256:f5a830efb9ce7a445376bb66ec94c638a9787422f96264c98edc6bdeed8ab736"},
+]
 
 [[package]]
 name = "click"
 version = "8.1.3"
 description = "Composable command line interface toolkit"
-category = "dev"
 optional = false
 python-versions = ">=3.7"
+files = [
+    {file = "click-8.1.3-py3-none-any.whl", hash = "sha256:bb4d8133cb15a609f44e8213d9b391b0809795062913b383c62be0ee95b1db48"},
+    {file = "click-8.1.3.tar.gz", hash = "sha256:7682dc8afb30297001674575ea00d1814d808d6a36af415a82bd481d37ba7b8e"},
+]
 
 [package.dependencies]
 colorama = {version = "*", markers = "platform_system == \"Windows\""}
@@ -50,25 +74,34 @@ colorama = {version = "*", markers = "platform_system == \"Windows\""}
 name = "colorama"
 version = "0.4.6"
 description = "Cross-platform colored terminal text."
-category = "dev"
 optional = false
 python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*,!=3.6.*,>=2.7"
+files = [
+    {file = "colorama-0.4.6-py2.py3-none-any.whl", hash = "sha256:4f1d9991f5acc0ca119f9d443620b77f9d6b33703e51011c16baf57afb285fc6"},
+    {file = "colorama-0.4.6.tar.gz", hash = "sha256:08695f5cb7ed6e0531a20572697297273c47b8cae5a63ffc6d6ed5c201be6e44"},
+]
 
 [[package]]
 name = "distlib"
 version = "0.3.6"
 description = "Distribution utilities"
-category = "dev"
 optional = false
 python-versions = "*"
+files = [
+    {file = "distlib-0.3.6-py2.py3-none-any.whl", hash = "sha256:f35c4b692542ca110de7ef0bea44d73981caeb34ca0b9b6b2e6d7790dda8f80e"},
+    {file = "distlib-0.3.6.tar.gz", hash = "sha256:14bad2d9b04d3a36127ac97f30b12a19268f211063d8f8ee4f47108896e11b46"},
+]
 
 [[package]]
 name = "filelock"
 version = "3.10.2"
 description = "A platform independent file lock."
-category = "dev"
 optional = false
 python-versions = ">=3.7"
+files = [
+    {file = "filelock-3.10.2-py3-none-any.whl", hash = "sha256:eb8f0f2d37ed68223ea63e3bddf2fac99667e4362c88b3f762e434d160190d18"},
+    {file = "filelock-3.10.2.tar.gz", hash = "sha256:75997740323c5f12e18f10b494bc11c03e42843129f980f17c04352cc7b09d40"},
+]
 
 [package.extras]
 docs = ["furo (>=2022.12.7)", "sphinx (>=6.1.3)", "sphinx-autodoc-typehints (>=1.22,!=1.23.4)"]
@@ -78,9 +111,12 @@ testing = ["covdefaults (>=2.3)", "coverage (>=7.2.2)", "pytest (>=7.2.2)", "pyt
 name = "flake8"
 version = "6.0.0"
 description = "the modular source code checker: pep8 pyflakes and co"
-category = "dev"
 optional = false
 python-versions = ">=3.8.1"
+files = [
+    {file = "flake8-6.0.0-py2.py3-none-any.whl", hash = "sha256:3833794e27ff64ea4e9cf5d410082a8b97ff1a06c16aa3d2027339cd0f1195c7"},
+    {file = "flake8-6.0.0.tar.gz", hash = "sha256:c61007e76655af75e6785a931f452915b371dc48f56efd765247c8fe68f2b181"},
+]
 
 [package.dependencies]
 mccabe = ">=0.7.0,<0.8.0"
@@ -91,9 +127,12 @@ pyflakes = ">=3.0.0,<3.1.0"
 name = "identify"
 version = "2.5.21"
 description = "File identification library for Python"
-category = "dev"
 optional = false
 python-versions = ">=3.7"
+files = [
+    {file = "identify-2.5.21-py2.py3-none-any.whl", hash = "sha256:69edcaffa8e91ae0f77d397af60f148b6b45a8044b2cc6d99cafa5b04793ff00"},
+    {file = "identify-2.5.21.tar.gz", hash = "sha256:7671a05ef9cfaf8ff63b15d45a91a1147a03aaccb2976d4e9bd047cbbc508471"},
+]
 
 [package.extras]
 license = ["ukkonen"]
@@ -102,9 +141,12 @@ license = ["ukkonen"]
 name = "isort"
 version = "5.12.0"
 description = "A Python utility / library to sort Python imports."
-category = "dev"
 optional = false
 python-versions = ">=3.8.0"
+files = [
+    {file = "isort-5.12.0-py3-none-any.whl", hash = "sha256:f84c2818376e66cf843d497486ea8fed8700b340f308f076c6fb1229dff318b6"},
+    {file = "isort-5.12.0.tar.gz", hash = "sha256:8bef7dde241278824a6d83f44a544709b065191b95b6e50894bdc722fcba0504"},
+]
 
 [package.extras]
 colors = ["colorama (>=0.4.3)"]
@@ -116,43 +158,81 @@ requirements-deprecated-finder = ["pip-api", "pipreqs"]
 name = "mccabe"
 version = "0.7.0"
 description = "McCabe checker, plugin for flake8"
-category = "dev"
 optional = false
 python-versions = ">=3.6"
+files = [
+    {file = "mccabe-0.7.0-py2.py3-none-any.whl", hash = "sha256:6c2d30ab6be0e4a46919781807b4f0d834ebdd6c6e3dca0bda5a15f863427b6e"},
+    {file = "mccabe-0.7.0.tar.gz", hash = "sha256:348e0240c33b60bbdf4e523192ef919f28cb2c3d7d5c7794f74009290f236325"},
+]
 
 [[package]]
 name = "mypy"
-version = "0.961"
+version = "1.11.1"
 description = "Optional static typing for Python"
-category = "dev"
 optional = false
-python-versions = ">=3.6"
+python-versions = ">=3.8"
+files = [
+    {file = "mypy-1.11.1-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:a32fc80b63de4b5b3e65f4be82b4cfa362a46702672aa6a0f443b4689af7008c"},
+    {file = "mypy-1.11.1-cp310-cp310-macosx_11_0_arm64.whl", hash = "sha256:c1952f5ea8a5a959b05ed5f16452fddadbaae48b5d39235ab4c3fc444d5fd411"},
+    {file = "mypy-1.11.1-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.manylinux_2_28_x86_64.whl", hash = "sha256:e1e30dc3bfa4e157e53c1d17a0dad20f89dc433393e7702b813c10e200843b03"},
+    {file = "mypy-1.11.1-cp310-cp310-musllinux_1_1_x86_64.whl", hash = "sha256:2c63350af88f43a66d3dfeeeb8d77af34a4f07d760b9eb3a8697f0386c7590b4"},
+    {file = "mypy-1.11.1-cp310-cp310-win_amd64.whl", hash = "sha256:a831671bad47186603872a3abc19634f3011d7f83b083762c942442d51c58d58"},
+    {file = "mypy-1.11.1-cp311-cp311-macosx_10_9_x86_64.whl", hash = "sha256:7b6343d338390bb946d449677726edf60102a1c96079b4f002dedff375953fc5"},
+    {file = "mypy-1.11.1-cp311-cp311-macosx_11_0_arm64.whl", hash = "sha256:e4fe9f4e5e521b458d8feb52547f4bade7ef8c93238dfb5bbc790d9ff2d770ca"},
+    {file = "mypy-1.11.1-cp311-cp311-manylinux_2_17_x86_64.manylinux2014_x86_64.manylinux_2_28_x86_64.whl", hash = "sha256:886c9dbecc87b9516eff294541bf7f3655722bf22bb898ee06985cd7269898de"},
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+    {file = "mypy-1.11.1-cp38-cp38-musllinux_1_1_x86_64.whl", hash = "sha256:45df906e8b6804ef4b666af29a87ad9f5921aad091c79cc38e12198e220beabd"},
+    {file = "mypy-1.11.1-cp38-cp38-win_amd64.whl", hash = "sha256:d44be7551689d9d47b7abc27c71257adfdb53f03880841a5db15ddb22dc63edb"},
+    {file = "mypy-1.11.1-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:2684d3f693073ab89d76da8e3921883019ea8a3ec20fa5d8ecca6a2db4c54bbe"},
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+    {file = "mypy-1.11.1-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.manylinux_2_28_x86_64.whl", hash = "sha256:11965c2f571ded6239977b14deebd3f4c3abd9a92398712d6da3a772974fad69"},
+    {file = "mypy-1.11.1-cp39-cp39-musllinux_1_1_x86_64.whl", hash = "sha256:a2b43895a0f8154df6519706d9bca8280cda52d3d9d1514b2d9c3e26792a0b74"},
+    {file = "mypy-1.11.1-cp39-cp39-win_amd64.whl", hash = "sha256:1a81cf05975fd61aec5ae16501a091cfb9f605dc3e3c878c0da32f250b74760b"},
+    {file = "mypy-1.11.1-py3-none-any.whl", hash = "sha256:0624bdb940255d2dd24e829d99a13cfeb72e4e9031f9492148f410ed30bcab54"},
+    {file = "mypy-1.11.1.tar.gz", hash = "sha256:f404a0b069709f18bbdb702eb3dcfe51910602995de00bd39cea3050b5772d08"},
+]
 
 [package.dependencies]
-mypy-extensions = ">=0.4.3"
+mypy-extensions = ">=1.0.0"
 tomli = {version = ">=1.1.0", markers = "python_version < \"3.11\""}
-typing-extensions = ">=3.10"
+typing-extensions = ">=4.6.0"
 
 [package.extras]
 dmypy = ["psutil (>=4.0)"]
-python2 = ["typed-ast (>=1.4.0,<2)"]
+install-types = ["pip"]
+mypyc = ["setuptools (>=50)"]
 reports = ["lxml"]
 
 [[package]]
 name = "mypy-extensions"
 version = "1.0.0"
 description = "Type system extensions for programs checked with the mypy type checker."
-category = "dev"
 optional = false
 python-versions = ">=3.5"
+files = [
+    {file = "mypy_extensions-1.0.0-py3-none-any.whl", hash = "sha256:4392f6c0eb8a5668a69e23d168ffa70f0be9ccfd32b5cc2d26a34ae5b844552d"},
+    {file = "mypy_extensions-1.0.0.tar.gz", hash = "sha256:75dbf8955dc00442a438fc4d0666508a9a97b6bd41aa2f0ffe9d2f2725af0782"},
+]
 
 [[package]]
 name = "nodeenv"
 version = "1.7.0"
 description = "Node.js virtual environment builder"
-category = "dev"
 optional = false
 python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*,!=3.6.*"
+files = [
+    {file = "nodeenv-1.7.0-py2.py3-none-any.whl", hash = "sha256:27083a7b96a25f2f5e1d8cb4b6317ee8aeda3bdd121394e5ac54e498028a042e"},
+    {file = "nodeenv-1.7.0.tar.gz", hash = "sha256:e0e7f7dfb85fc5394c6fe1e8fa98131a2473e04311a45afb6508f7cf1836fa2b"},
+]
 
 [package.dependencies]
 setuptools = "*"
@@ -161,17 +241,23 @@ setuptools = "*"
 name = "pathspec"
 version = "0.11.1"
 description = "Utility library for gitignore style pattern matching of file paths."
-category = "dev"
 optional = false
 python-versions = ">=3.7"
+files = [
+    {file = "pathspec-0.11.1-py3-none-any.whl", hash = "sha256:d8af70af76652554bd134c22b3e8a1cc46ed7d91edcdd721ef1a0c51a84a5293"},
+    {file = "pathspec-0.11.1.tar.gz", hash = "sha256:2798de800fa92780e33acca925945e9a19a133b715067cf165b8866c15a31687"},
+]
 
 [[package]]
 name = "platformdirs"
 version = "3.1.1"
 description = "A small Python package for determining appropriate platform-specific dirs, e.g. a \"user data dir\"."
-category = "dev"
 optional = false
 python-versions = ">=3.7"
+files = [
+    {file = "platformdirs-3.1.1-py3-none-any.whl", hash = "sha256:e5986afb596e4bb5bde29a79ac9061aa955b94fca2399b7aaac4090860920dd8"},
+    {file = "platformdirs-3.1.1.tar.gz", hash = "sha256:024996549ee88ec1a9aa99ff7f8fc819bb59e2c3477b410d90a16d32d6e707aa"},
+]
 
 [package.extras]
 docs = ["furo (>=2022.12.7)", "proselint (>=0.13)", "sphinx (>=6.1.3)", "sphinx-autodoc-typehints (>=1.22,!=1.23.4)"]
@@ -181,9 +267,12 @@ test = ["appdirs (==1.4.4)", "covdefaults (>=2.2.2)", "pytest (>=7.2.1)", "pytes
 name = "pre-commit"
 version = "2.21.0"
 description = "A framework for managing and maintaining multi-language pre-commit hooks."
-category = "dev"
 optional = false
 python-versions = ">=3.7"
+files = [
+    {file = "pre_commit-2.21.0-py2.py3-none-any.whl", hash = "sha256:e2f91727039fc39a92f58a588a25b87f936de6567eed4f0e673e0507edc75bad"},
+    {file = "pre_commit-2.21.0.tar.gz", hash = "sha256:31ef31af7e474a8d8995027fefdfcf509b5c913ff31f2015b4ec4beb26a6f658"},
+]
 
 [package.dependencies]
 cfgv = ">=2.0.0"
@@ -196,186 +285,31 @@ virtualenv = ">=20.10.0"
 name = "pycodestyle"
 version = "2.10.0"
 description = "Python style guide checker"
-category = "dev"
 optional = false
 python-versions = ">=3.6"
+files = [
+    {file = "pycodestyle-2.10.0-py2.py3-none-any.whl", hash = "sha256:8a4eaf0d0495c7395bdab3589ac2db602797d76207242c17d470186815706610"},
+    {file = "pycodestyle-2.10.0.tar.gz", hash = "sha256:347187bdb476329d98f695c213d7295a846d1152ff4fe9bacb8a9590b8ee7053"},
+]
 
 [[package]]
 name = "pyflakes"
 version = "3.0.1"
 description = "passive checker of Python programs"
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+python-versions = ">=3.7"
+files = [
     {file = "tomli-2.0.1-py3-none-any.whl", hash = "sha256:939de3e7a6161af0c887ef91b7d41a53e7c5a1ca976325f429cb46ea9bc30ecc"},
     {file = "tomli-2.0.1.tar.gz", hash = "sha256:de526c12914f0c550d15924c62d72abc48d6fe7364aa87328337a31007fe8a4f"},
 ]
-typing-extensions = [
-    {file = "typing_extensions-4.5.0-py3-none-any.whl", hash = "sha256:fb33085c39dd998ac16d1431ebc293a8b3eedd00fd4a32de0ff79002c19511b4"},
-    {file = "typing_extensions-4.5.0.tar.gz", hash = "sha256:5cb5f4a79139d699607b3ef622a1dedafa84e115ab0024e0d9c044a9479ca7cb"},
+
+[[package]]
+name = "typing-extensions"
+version = "4.12.2"
+description = "Backported and Experimental Type Hints for Python 3.8+"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "typing_extensions-4.12.2-py3-none-any.whl", hash = "sha256:04e5ca0351e0f3f85c6853954072df659d0d13fac324d0072316b67d7794700d"},
+    {file = "typing_extensions-4.12.2.tar.gz", hash = "sha256:1a7ead55c7e559dd4dee8856e3a88b41225abfe1ce8df57b7c13915fe121ffb8"},
 ]
-virtualenv = [
+
+[[package]]
+name = "virtualenv"
+version = "20.21.0"
+description = "Virtual Python Environment builder"
+optional = false
+python-versions = ">=3.7"
+files = [
     {file = "virtualenv-20.21.0-py3-none-any.whl", hash = "sha256:31712f8f2a17bd06234fa97fdf19609e789dd4e3e4bf108c3da71d710651adbc"},
     {file = "virtualenv-20.21.0.tar.gz", hash = "sha256:f50e3e60f990a0757c9b68333c9fdaa72d7188caa417f96af9e52407831a3b68"},
 ]
+
+[package.dependencies]
+distlib = ">=0.3.6,<1"
+filelock = ">=3.4.1,<4"
+platformdirs = ">=2.4,<4"
+
+[package.extras]
+docs = ["furo (>=2022.12.7)", "proselint (>=0.13)", "sphinx (>=6.1.3)", "sphinx-argparse (>=0.4)", "sphinxcontrib-towncrier (>=0.2.1a0)", "towncrier (>=22.12)"]
+test = ["covdefaults (>=2.2.2)", "coverage (>=7.1)", "coverage-enable-subprocess (>=1)", "flaky (>=3.7)", "packaging (>=23)", "pytest (>=7.2.1)", "pytest-env (>=0.8.1)", "pytest-freezegun (>=0.4.2)", "pytest-mock (>=3.10)", "pytest-randomly (>=3.12)", "pytest-timeout (>=2.1)"]
+
+[metadata]
+lock-version = "2.0"
+python-versions = "^3.10"
+content-hash = "0556e8a58e9e63774cc5c8a9208ae77d936f8068cc32511afd211447a3825061"
diff --git a/pyproject.toml b/pyproject.toml
index c161475..81b5ef9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -12,7 +12,7 @@ python = "^3.10"
 flake8 = "^6.0.0"
 isort = "^5.10.1"
 black = "^22.3.0"
-mypy = "^0.961"
+mypy = "^1.11.0"
 astpretty = "^3.0.0"
 pre-commit = "^2.19.0"
 
diff --git a/tutor_flake/common.py b/tutor_flake/common.py
index baf8c2b..9a80a59 100644
--- a/tutor_flake/common.py
+++ b/tutor_flake/common.py
@@ -1,6 +1,8 @@
 import ast
 from typing import List, NamedTuple, Optional, Type, Union
 
+from typing_extensions import Self
+
 
 class Flake8Error(NamedTuple):
     line_number: int
@@ -15,9 +17,12 @@ def construct(  # noqa: TUT610
         code: int,
         description: str,
         rule_cls: type,
-    ) -> "Flake8Error":
-        return Flake8Error(
-            node.lineno, node.col_offset, f"TUT{code} {description}", rule_cls
+    ) -> Self:
+        return cls(
+            node.lineno,  # type: ignore
+            node.col_offset,  # type: ignore
+            f"TUT{code} {description}",
+            rule_cls,
         )
 
 
diff --git a/tutor_flake/example_code/test_classvar_rules.py b/tutor_flake/example_code/test_classvar_rules.py
index ac9301e..62ad94c 100644
--- a/tutor_flake/example_code/test_classvar_rules.py
+++ b/tutor_flake/example_code/test_classvar_rules.py
@@ -3,6 +3,8 @@
 from enum import Enum
 from typing import ClassVar, Final, List, NamedTuple, Protocol, TypeVar
 
+from typing_extensions import Self
+
 
 class DummyClass:
 
@@ -63,7 +65,7 @@ def __str__(self) -> str:
         return super().__str__()
 
     @classmethod
-    def construct(cls) -> "ExampleDataclass":
+    def construct(cls) -> Self:
         raise NotImplementedError
 
     # other inline comment
diff --git a/tutor_flake/example_code/test_constructor.py b/tutor_flake/example_code/test_constructor.py
new file mode 100644
index 0000000..a948abb
--- /dev/null
+++ b/tutor_flake/example_code/test_constructor.py
@@ -0,0 +1,46 @@
+from contextlib import asynccontextmanager
+from typing import AsyncGenerator, List, Tuple
+
+from typing_extensions import Self
+
+
+class FooBar:
+    @classmethod
+    def bad_cls_construct(cls) -> "FooBar":  # noqa: TUT530
+        raise NotImplementedError
+
+    @staticmethod
+    def bad_static_struct() -> "FooBar":  # noqa: TUT530
+        raise NotImplementedError
+
+    def bad_self_method(self) -> "FooBar":  # noqa: TUT530
+        raise NotImplementedError
+
+    def bad_complicated_return(self) -> Tuple[None, "FooBar"]:  # noqa: TUT530
+        raise NotImplementedError
+
+    @asynccontextmanager
+    async def bad_complicated_return_2(  # noqa: TUT530 TUT210
+        self,
+    ) -> AsyncGenerator["FooBar", None]:
+        yield self
+
+    async def return_allowed_because_of_args(
+        self, arg_1: List["FooBar"]
+    ) -> List["FooBar"]:
+        raise NotImplementedError
+
+    def return_allowed_because_of_positional_only_arg(
+        self,
+        arg_1: "FooBar",
+    ) -> "FooBar":
+        raise NotImplementedError
+
+    def return_allowed_because_of_keyword_only_arg(
+        self, *, arg_1: "FooBar"
+    ) -> "FooBar":
+        raise NotImplementedError
+
+    @classmethod
+    def good_cls_construct(cls) -> Self:
+        raise NotImplementedError
diff --git a/tutor_flake/plugin.py b/tutor_flake/plugin.py
index 08bf62a..7abf6de 100644
--- a/tutor_flake/plugin.py
+++ b/tutor_flake/plugin.py
@@ -8,6 +8,7 @@
 from typing import Any, Callable, ClassVar, Generator, Iterable, List, Optional, TypeVar
 
 from flake8.options.manager import OptionManager
+from typing_extensions import Self
 
 from tutor_flake import __version__
 from tutor_flake.common import Flake8Error
@@ -20,6 +21,7 @@
 )
 from tutor_flake.rules.classvar import ClassvarCheck
 from tutor_flake.rules.compact_generic import CompactGeneric
+from tutor_flake.rules.constructor import ConstructorIsWellTyped
 from tutor_flake.rules.dataclass import DataclassRenamed
 from tutor_flake.rules.no_sideeffects import NoSideeffects
 from tutor_flake.rules.not_implemented import NotImplementedCheck
@@ -75,8 +77,8 @@ def add_options(option_manager: OptionManager) -> None:
         )
 
     @classmethod
-    def parse_options(cls, options: Namespace) -> "TutorFlakeConfig":
-        return TutorFlakeConfig(
+    def parse_options(cls, options: Namespace) -> Self:
+        return cls(
             options.max_definition_positional_args,
             options.max_invocation_positional_args,
             options.non_init_classes,
@@ -187,6 +189,7 @@ def visit_FunctionDef(self, node: ast.FunctionDef) -> Iterable[Flake8Error]:
             ChildClassCallsSuperMethods.check(
                 node, self.parents, self.config.non_init_classes
             ),
+            ConstructorIsWellTyped.check(node, self.parents),
         )
 
     @visitor_decorator
@@ -210,6 +213,7 @@ def visit_AsyncFunctionDef(
             ),
             ConsecutiveSameTypedPositionalArgs.check(node),
             AsyncFunctionsAreAsynchronous.check(node),
+            ConstructorIsWellTyped.check(node, self.parents),
         )
 
     @visitor_decorator
diff --git a/tutor_flake/rules/constructor.py b/tutor_flake/rules/constructor.py
new file mode 100644
index 0000000..9f11f84
--- /dev/null
+++ b/tutor_flake/rules/constructor.py
@@ -0,0 +1,50 @@
+import ast
+import itertools
+from ast import Constant, expr, walk
+from typing import Generator, List
+
+from tutor_flake.common import Flake8Error
+
+
+class ConstructorIsWellTyped:
+    @classmethod
+    def check(
+        cls, func: ast.FunctionDef | ast.AsyncFunctionDef, parents: List[ast.AST]
+    ) -> Generator[Flake8Error, None, None]:
+        class_definition = next(
+            (
+                parent
+                for parent in reversed(parents)
+                if isinstance(parent, ast.ClassDef)
+            ),
+            None,
+        )
+        if class_definition is None:
+            return
+        class_name = class_definition.name
+        for func_arg in itertools.chain(
+            func.args.posonlyargs, func.args.args, func.args.kwonlyargs
+        ):
+            if (
+                annotation := func_arg.annotation
+            ) is not None and does_type_annotation_include_type(annotation, class_name):
+                # we allow the return type if an argument includes the class name
+                return
+        if (
+            func_return := func.returns
+        ) is not None and does_type_annotation_include_type(func_return, class_name):
+            yield Flake8Error.construct(
+                func,
+                530,
+                f"Funciton `{func.name}`'s return value includes the class type: `{class_name}`."
+                " Likely you want to return the Self type imported from `typing` or `typing_extensions`"
+                " as child types likely should return their own type.",
+                cls,
+            )
+
+
+def does_type_annotation_include_type(annotation: expr, check_type: str) -> bool:
+    for child_node in walk(annotation):
+        if isinstance(child_node, Constant) and child_node.value == check_type:
+            return True
+    return False