diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index cc6cd45..3db5bce 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -16,4 +16,6 @@ jobs:
     with:
       node-version: '24'
       enable-qemu: true
+      # Phase 0b ships no CDK app (no cdk.json / stacks); infra lands in Phase 1.
+      run-cdk-synth: false
     secrets: inherit