diff --git a/src/model.ts b/src/model.ts
index b602a19..35578c0 100644
--- a/src/model.ts
+++ b/src/model.ts
@@ -139,6 +139,7 @@ class CommandCodeLanguageModel implements LanguageModelV3 {
       "x-project-slug": "project",
       "x-taste-learning": "true",
       "x-co-flag": "false",
+      "x-cmd-zdr": "1",
       ...this.opts.headers,
     };
     const auth = bearer(this.opts.apiKey);