diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 0dc8342..f89a800 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -8,7 +8,12 @@ on:
 
 jobs:
   check:
-    name: "Lint"
+    name: "check"
     runs-on: ubuntu-latest
     steps:
-      - uses: astral-sh/ruff-action@v3
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        with:
+          fetch-depth: 0
+          persist-credentials: false
+
+      - run: ./ty check . --output-format github
diff --git a/try.py b/try.py
new file mode 100644
index 0000000..614cab3
--- /dev/null
+++ b/try.py
@@ -0,0 +1,17 @@
+pow("s")
+
+def foo(x: int): ...
+
+
+
+
+
+
+
+
+
+
+
+
+
+foo("bar")
diff --git a/ty b/ty
new file mode 100755
index 0000000..34447e7
Binary files /dev/null and b/ty differ