diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
new file mode 100644
index 0000000..a338f99
--- /dev/null
+++ b/.github/workflows/tests.yml
@@ -0,0 +1,40 @@
+name: Tests
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    name: Python ${{ matrix.python-version }}
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.11", "3.12", "3.13", "3.14"]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+      - uses: astral-sh/setup-uv@v6
+      - name: Create virtual environment
+        run: uv venv --python "${{ matrix.python-version }}" .venv
+      - name: Install test runner dependencies
+        run: |
+          # Do not use pyproject.toml's Git amplifier-core source mapping in CI.
+          uv pip install --no-config --python .venv/bin/python \
+            "amplifier-core==1.5.2" \
+            "pytest==9.0.3" \
+            "pytest-asyncio==1.3.0"
+          # Test-only: install Foundation without dependencies so it cannot replace packaged core.
+          uv pip install --no-config --no-deps --python .venv/bin/python \
+            "amplifier-foundation @ git+https://github.com/microsoft/amplifier-foundation.git@5fb4b292afbd99d41e304a87ffedcdd5ad83929f"
+          uv pip install --no-config --no-deps --python .venv/bin/python .
+      - name: Run full test suite, including TestProgressRecovery
+        run: .venv/bin/python -m pytest tests -v