diff --git a/.github/workflows/cicd.yml b/.github/workflows/cicd.yml
index 7e007b0..53529c5 100644
--- a/.github/workflows/cicd.yml
+++ b/.github/workflows/cicd.yml
@@ -30,6 +30,9 @@ jobs:
         run: |
           bundle install
 
+      - name: Check Zeitwerk eager loading
+        run: bundle exec ruby -e "require 'ruby_llm/mcp'; Zeitwerk::Loader.eager_load_all"
+
       - name: Install Bun dependencies for test fixtures
         run: |
           cd spec/fixtures/typescript-mcp && bun install