diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
new file mode 100644
index 0000000..e9fa2df
--- /dev/null
+++ b/.github/workflows/ci.yaml
@@ -0,0 +1,108 @@
+name: CI
+on:
+  workflow_dispatch:
+  push:
+  pull_request:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  validate-json:
+    name: Validate JSON
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Install jq
+        run: sudo apt-get update && sudo apt-get install -y jq
+
+      - name: Validate
+        shell: bash
+        run: |
+          set -euo pipefail
+
+          echo "Searching JSON files in src_data..."
+
+          files=$(find src_data -type f -iname "*.json")
+
+          if [ -z "$files" ]; then
+            echo "No JSON files found."
+            exit 0
+          fi
+
+          failed=0
+
+          for file in $files; do
+            echo "Validating: $file"
+
+            if ! jq empty "$file" >/dev/null 2>&1; then
+              echo "❌ Invalid JSON: $file"
+              failed=1
+            else
+              echo "✅ Valid JSON: $file"
+            fi
+          done
+
+          if [ "$failed" -ne 0 ]; then
+            echo ""
+            echo "JSON validation failed."
+            exit 1
+          fi
+
+          echo ""
+          echo "All JSON files are valid."
+
+  cpplint:
+    name: cpplint
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6
+
+      - name: Cache
+        uses: actions/cache@v5
+        with:
+          key: ${{ runner.os }}-cpplint
+          path: ~/.cache/pip
+
+      - name: Python
+        uses: actions/setup-python@v6
+        with:
+          python-version: "3.x"
+
+      - name: Install cpplint
+        run: |
+          python -m pip install --upgrade pip
+          pip install --upgrade cpplint
+
+      - name: cpplint
+        run: |
+          FILTERS="-legal/copyright,\
+          -runtime/int,\
+          -runtime/references,\
+          -runtime/indentation_namespace,\
+          -runtime/arrays,\
+          -runtime/printf,\
+          -whitespace/line_length,\
+          -whitespace/braces,\
+          -whitespace/comments,\
+          -whitespace/indent,\
+          -whitespace/newline,\
+          -whitespace/parens,\
+          -readability/braces,\
+          -readability/todo,\
+          -build/header_guard,\
+          -build/include_subdir,\
+          -build/include_what_you_use,\
+          -build/namespaces,\
+          -build/c++11"
+
+          cpplint \
+            --repository=. \
+            --recursive \
+            --quiet \
+            --filter="$FILTERS" \
+            include lib src