diff --git a/src/lib/twitter-client-features.ts b/src/lib/twitter-client-features.ts
index 24fed92..b8aeae6 100644
--- a/src/lib/twitter-client-features.ts
+++ b/src/lib/twitter-client-features.ts
@@ -13,6 +13,7 @@ export function buildArticleFeatures(): Record<string, boolean> {
     c9s_tweet_anatomy_moderator_badge_enabled: true,
     responsive_web_grok_analyze_button_fetch_trends_enabled: false,
     responsive_web_grok_analyze_post_followups_enabled: false,
+    responsive_web_grok_annotations_enabled: false,
     responsive_web_jetfuel_frame: true,
     responsive_web_grok_share_attachment_enabled: true,
     articles_preview_enabled: true,
@@ -81,6 +82,7 @@ export function buildSearchFeatures(): Record<string, boolean> {
     c9s_tweet_anatomy_moderator_badge_enabled: true,
     responsive_web_grok_analyze_button_fetch_trends_enabled: false,
     responsive_web_grok_analyze_post_followups_enabled: false,
+    responsive_web_grok_annotations_enabled: false,
     responsive_web_jetfuel_frame: true,
     responsive_web_grok_share_attachment_enabled: true,
     responsive_web_edit_tweet_api_enabled: true,
@@ -115,6 +117,7 @@ export function buildTweetCreateFeatures(): Record<string, boolean> {
     c9s_tweet_anatomy_moderator_badge_enabled: true,
     responsive_web_grok_analyze_button_fetch_trends_enabled: false,
     responsive_web_grok_analyze_post_followups_enabled: false,
+    responsive_web_grok_annotations_enabled: false,
     responsive_web_jetfuel_frame: true,
     responsive_web_grok_share_attachment_enabled: true,
     responsive_web_edit_tweet_api_enabled: true,
@@ -225,6 +228,7 @@ export function buildFollowingFeatures(): Record<string, boolean> {
     c9s_tweet_anatomy_moderator_badge_enabled: true,
     responsive_web_grok_analyze_button_fetch_trends_enabled: false,
     responsive_web_grok_analyze_post_followups_enabled: false,
+    responsive_web_grok_annotations_enabled: false,
     responsive_web_jetfuel_frame: false,
     responsive_web_grok_share_attachment_enabled: false,
     articles_preview_enabled: true,