diff --git a/.github/workflows/spawn-ephemeral-backend.yml b/.github/workflows/spawn-ephemeral-backend.yml
new file mode 100644
index 0000000000..99476114b4
--- /dev/null
+++ b/.github/workflows/spawn-ephemeral-backend.yml
@@ -0,0 +1,136 @@
+name: Spawn Ephemeral Backend
+
+on:
+  issue_comment:
+    types: [created]
+
+jobs:
+  spawn-backend:
+    # Only run on PR comments that contain /spawn-backend
+    if: |
+      github.event.issue.pull_request &&
+      contains(github.event.comment.body, '/spawn-backend')
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write
+      contents: read
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Get PR details
+        id: pr-details
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const pr = await github.rest.pulls.get({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              pull_number: context.issue.number
+            });
+
+            const branchName = pr.data.head.ref;
+            const commitHash = pr.data.head.sha;
+
+            // Replace / with - in branch name for pages URL
+            const normalizedBranch = branchName.replace(/\//g, '-');
+
+            core.setOutput('branch_name', branchName);
+            core.setOutput('normalized_branch', normalizedBranch);
+            core.setOutput('commit_hash', commitHash);
+
+            console.log(`Branch: ${branchName}`);
+            console.log(`Normalized Branch: ${normalizedBranch}`);
+            console.log(`Commit Hash: ${commitHash}`);
+
+      - name: Spawn ephemeral backend
+        id: spawn
+        env:
+          QUEUE_URL: ${{ secrets.EPHEMERAL_BACKEND_QUEUE_URL }}
+          COMMIT_HASH: ${{ steps.pr-details.outputs.commit_hash }}
+        run: |
+          echo "Spawning backend for commit: $COMMIT_HASH"
+          echo "Queue URL: $QUEUE_URL"
+
+          # Send POST request to spawn backend
+          RESPONSE=$(curl -s -w "\n%{http_code}" -X POST \
+            "${QUEUE_URL}/spawn/${COMMIT_HASH}" \
+            -H "Content-Type: application/json")
+
+          # Extract HTTP status code (last line)
+          HTTP_CODE=$(echo "$RESPONSE" | tail -n1)
+          # Extract response body (everything except last line)
+          BODY=$(echo "$RESPONSE" | sed '$d')
+
+          echo "HTTP Status: $HTTP_CODE"
+          echo "Response Body: $BODY"
+
+          if [ "$HTTP_CODE" -eq 202 ]; then
+            # Extract tunnelUrl from JSON response
+            TUNNEL_URL=$(echo "$BODY" | jq -r '.tunnelUrl')
+            echo "tunnel_url=$TUNNEL_URL" >> $GITHUB_OUTPUT
+            echo "success=true" >> $GITHUB_OUTPUT
+            echo "✅ Backend spawned successfully: $TUNNEL_URL"
+          else
+            echo "success=false" >> $GITHUB_OUTPUT
+            echo "error_message=Failed to spawn backend. HTTP Status: $HTTP_CODE, Response: $BODY" >> $GITHUB_OUTPUT
+            echo "❌ Failed to spawn backend"
+          fi
+
+      - name: Comment success on PR
+        if: steps.spawn.outputs.success == 'true'
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const tunnelUrl = '${{ steps.spawn.outputs.tunnel_url }}';
+            const normalizedBranch = '${{ steps.pr-details.outputs.normalized_branch }}';
+            const commitHash = '${{ steps.pr-details.outputs.commit_hash }}';
+            const shortHash = commitHash.substring(0, 8);
+
+            const previewUrl = `https://${normalizedBranch}.windmill.pages.dev?remote_url=${encodeURIComponent(tunnelUrl)}`;
+
+            const commentBody = `## 🚀 Ephemeral Backend Spawned
+
+            Your ephemeral backend is now available!
+
+            - **Commit**: \`${shortHash}\`
+            - **Backend URL**: ${tunnelUrl}
+            - **Preview Link**: ${previewUrl}
+
+            > ⏰ This backend will automatically shut down after **1 hour**.
+
+            You can now test your changes with the full backend environment.`;
+
+            await github.rest.issues.createComment({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: context.issue.number,
+              body: commentBody
+            });
+
+      - name: Comment error on PR
+        if: steps.spawn.outputs.success == 'false'
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const errorMessage = '${{ steps.spawn.outputs.error_message }}';
+            const commitHash = '${{ steps.pr-details.outputs.commit_hash }}';
+            const shortHash = commitHash.substring(0, 8);
+
+            const commentBody = `## ❌ Failed to Spawn Ephemeral Backend
+
+            Failed to spawn backend for commit \`${shortHash}\`.
+
+            **Error**: ${errorMessage}
+
+            Please check the [action logs](https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}) for more details.`;
+
+            await github.rest.issues.createComment({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: context.issue.number,
+              body: commentBody
+            });