diff --git a/.gitea/workflows/validate-capital-efficiency.yml b/.gitea/workflows/validate-capital-efficiency.yml
new file mode 100644
index 0000000..079c922
--- /dev/null
+++ b/.gitea/workflows/validate-capital-efficiency.yml
@@ -0,0 +1,22 @@
+# Simulation/docs repo — no dedicated hosting VM; CI validates policy + scenarios.
+name: Validate capital efficiency
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+jobs:
+  validate:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: "20"
+
+      - name: Run capital-efficiency validation gate
+        run: node scripts/validate-capital-efficiency.cjs