diff --git a/scripts/plugin-sdk-surface-report.mts b/scripts/plugin-sdk-surface-report.mts
index 2f9d327f8063..22796ccde6dd 100644
--- a/scripts/plugin-sdk-surface-report.mts
+++ b/scripts/plugin-sdk-surface-report.mts
@@ -131,7 +131,8 @@ const defaultPublicDeprecatedExportsByEntrypointBudget = Object.freeze({
   "channel-reply-pipeline": 12,
   "interactive-runtime": 11,
   // +3: canonical incognito classifier projected through deprecated compatibility barrels.
-  "infra-runtime": 596,
+  // +2: model-auth state/clear diagnostic event contracts during the runtime-barrel migration.
+  "infra-runtime": 598,
   "ssrf-policy": 1,
   "ssrf-runtime": 1,
   // +1: deprecated agent media projection re-export during the media migration window.