diff --git a/.github/workflows/pr-checks.yml b/.github/workflows/pr-checks.yml
index 361a2ffe..d0d99f42 100644
--- a/.github/workflows/pr-checks.yml
+++ b/.github/workflows/pr-checks.yml
@@ -20,4 +20,6 @@ jobs:
           node-version: 20
       - run: npm ci
       - run: npm run build
+      - run: npm run lint
+      - run: npm run typecheck
       - run: npm test
diff --git a/.github/workflows/pull-request-reviewer.yml b/.github/workflows/pull-request-reviewer.yml
index ce137b68..d266fb57 100644
--- a/.github/workflows/pull-request-reviewer.yml
+++ b/.github/workflows/pull-request-reviewer.yml
@@ -9,7 +9,7 @@ on:
 jobs:
   review:
     name: Cross-check Pull Request
-    if: ${{ false }}
+    if: ${{ vars.ENABLE_PR_REVIEWER == 'true' }}
     runs-on: ubuntu-latest
     permissions:
       contents: read