diff --git a/.gitea/workflows/test.yml b/.gitea/workflows/test.yml
index e5e2bba..cfc0bb1 100644
--- a/.gitea/workflows/test.yml
+++ b/.gitea/workflows/test.yml
@@ -17,6 +17,9 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install -r requirements.txt
+      - name: Type check (mypy)
+        run: |
+          make typecheck
       - name: Run test suite
         run: |
           make test
diff --git a/Makefile b/Makefile
index c3d6fa2..90bbb8a 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,7 @@
-.PHONY: test
+.PHONY: test typecheck
 
 test:
 	python3 -m pytest tests/test_ci_config.py scripts/test_*.py -v
+
+typecheck:
+	mypy scripts/ tests/ --config-file=mypy.ini --show-error-codes
diff --git a/mypy.ini b/mypy.ini
new file mode 100644
index 0000000..10bc74d
--- /dev/null
+++ b/mypy.ini
@@ -0,0 +1,20 @@
+[mypy]
+# Compounding Intelligence Type Checker Configuration (Issue #157)
+python_version = 3.11
+ignore_missing_imports = True
+warn_unused_ignores = True
+warn_redundant_casts = True
+warn_return_any = True
+show_error_codes = True
+pretty = True
+
+# Per-module strictness
+[mypy-tests.*]
+disallow_untyped_defs = False
+
+[mypy-scripts.test_*]
+disallow_untyped_defs = False
+
+# Optional: uncomment to enforce stricter checking gradually
+# disallow_untyped_defs = True
+# check_untyped_defs = True
diff --git a/requirements.txt b/requirements.txt
index 75b4ea8..b34fd64 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1,2 @@
 pytest>=8,<9
+mypy>=1.0