diff --git a/poetry.lock b/poetry.lock
index c6857b39..3eb163d7 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1265,6 +1265,23 @@ pytest-asyncio = ">=0.17.2"
 [package.extras]
 testing = ["coverage (==6.2)", "mypy (==0.931)"]
 
+[[package]]
+name = "pytest-archon"
+version = "0.0.6"
+description = "Rule your architecture like a real developer"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "pytest-archon-0.0.6.tar.gz", hash = "sha256:5af260a7617fc0a9e8bcd7a62adc42ed1ad466e20ae128b218589f49f73b1bcf"},
+    {file = "pytest_archon-0.0.6-py3-none-any.whl", hash = "sha256:f49b6b1f33a541dda1cab8a733b93b8a712594a002f03283294a624d0b394e83"},
+]
+
+[package.dependencies]
+pytest = ">=7.2"
+
+[package.extras]
+dev = ["black", "check-manifest", "check-wheel-contents", "coverage", "flake8", "mypy", "pyroma"]
+
 [[package]]
 name = "pytest-asyncio"
 version = "0.24.0"
@@ -1770,4 +1787,4 @@ propcache = ">=0.2.0"
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.11"
-content-hash = "541327434d7d3eabae4e0936e1dd88bf63462b363b733376ce5ed5d852cc668d"
+content-hash = "13b7eb3dda4a28354933ed63c0ffe0a24fbd1f720e6befca42bfc22750d9d905"
diff --git a/pyproject.toml b/pyproject.toml
index 3e775634..c7649106 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -46,6 +46,7 @@ pytest-md = "^0.2.0"
 coverage = { extras = ["toml"], version = "^7.4.4" }
 selenium = "^4.19.0"
 lxml-stubs = "^0.5.1"
+pytest-archon = "^0.0.6"
 
 [tool.poetry.group.linter]
 dependencies = { ruff = "^0.6.3" }
diff --git a/tests/test_arch.py b/tests/test_arch.py
new file mode 100644
index 00000000..f48f91f7
--- /dev/null
+++ b/tests/test_arch.py
@@ -0,0 +1,10 @@
+from pytest_archon import archrule
+
+
+def test_questionpy_should_not_import_sdk() -> None:
+    (
+        archrule("questionpy_should_not_import_sdk", comment="The questionpy package must work without the SDK.")
+        .match("questionpy*")
+        .should_not_import("questionpy_sdk*")
+        .check("questionpy")
+    )