diff --git a/.github/workflows/claude-code-review.yml b/.github/workflows/claude-code-review.yml
index fe2ea8669..ae06a751e 100644
--- a/.github/workflows/claude-code-review.yml
+++ b/.github/workflows/claude-code-review.yml
@@ -28,6 +28,9 @@ jobs:
           # by the plan (no metered API charge). Set the CLAUDE_CODE_OAUTH_TOKEN
           # secret on this repo (Settings > Secrets and variables > Actions).
           claude_code_oauth_token: ${{ secrets.CLAUDE_CODE_OAUTH_TOKEN }}
+          # TEMPORARY (debug-review-auth): surface the SDK error that is failing
+          # instantly on this repo; remove before merging anything real.
+          show_full_output: true
           prompt: |
             REPO: ${{ github.repository }}
             PR NUMBER: ${{ github.event.pull_request.number }}