diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..9d79d9d
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,100 @@
+name: Tests
+
+on:
+  push:
+    branches: [ main, copilot/** ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  test:
+    name: Test Python ${{ matrix.python-version }} on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest]
+        python-version: ['3.11', '3.12', '3.13', '3.14']
+
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        submodules: 'recursive'
+
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v5
+      with:
+        python-version: ${{ matrix.python-version }}
+
+    - name: Install system dependencies
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y \
+          cmake \
+          build-essential \
+          libgmt-dev \
+          gmt \
+          gmt-dcw \
+          gmt-gshhg \
+          ghostscript
+
+    - name: Install uv
+      uses: astral-sh/setup-uv@v3
+      with:
+        enable-cache: true
+
+    - name: Install Python dependencies
+      working-directory: pygmt_nanobind_benchmark
+      run: |
+        uv pip install --system -e ".[test,dev]" --no-build-isolation
+
+    - name: Run tests
+      working-directory: pygmt_nanobind_benchmark
+      run: |
+        uv run pytest tests/ -v --tb=short
+
+    - name: Upload test results
+      uses: actions/upload-artifact@v4
+      if: failure()
+      with:
+        name: test-results-${{ matrix.os }}-${{ matrix.python-version }}
+        path: pygmt_nanobind_benchmark/tests/
+        retention-days: 7
+
+  lint:
+    name: Lint and Type Check
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        submodules: 'recursive'
+
+    - name: Set up Python
+      uses: actions/setup-python@v5
+      with:
+        python-version: '3.12'
+
+    - name: Install uv
+      uses: astral-sh/setup-uv@v3
+      with:
+        enable-cache: true
+
+    - name: Install dependencies
+      run: |
+        uv pip install --system ruff mypy
+
+    - name: Run ruff format check
+      working-directory: pygmt_nanobind_benchmark
+      run: |
+        uv run ruff format --check .
+
+    - name: Run ruff lint
+      working-directory: pygmt_nanobind_benchmark
+      run: |
+        uv run ruff check .
+
+    - name: Run mypy
+      working-directory: pygmt_nanobind_benchmark
+      run: |
+        uv run mypy python/ tests/ || true
diff --git a/README.md b/README.md
index 4b4baaa..8420774 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 # Coders
 
+[![Tests](https://github.com/hironow/Coders/actions/workflows/test.yml/badge.svg)](https://github.com/hironow/Coders/actions/workflows/test.yml)
+
 Please read AGENTS.md first and follow the instructions there.
 
 1. [pygmt_nanobind_benchmark](./pygmt_nanobind_benchmark/INSTRUCTIONS)
diff --git a/pygmt_nanobind_benchmark/pyproject.toml b/pygmt_nanobind_benchmark/pyproject.toml
index 7e7407c..cf87dae 100644
--- a/pygmt_nanobind_benchmark/pyproject.toml
+++ b/pygmt_nanobind_benchmark/pyproject.toml
@@ -22,6 +22,8 @@ classifiers = [
     "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3.14",
     "Programming Language :: C++",
     "Topic :: Scientific/Engineering",
 ]