diff --git a/packages/vscode-ide-companion/schemas/settings.schema.json b/packages/vscode-ide-companion/schemas/settings.schema.json
index 9ea83878b0..276cb8b3d8 100644
--- a/packages/vscode-ide-companion/schemas/settings.schema.json
+++ b/packages/vscode-ide-companion/schemas/settings.schema.json
@@ -435,6 +435,13 @@
               "default": false
             }
           }
+        },
+        "sessionIdHeaderHosts": {
+          "description": "Destination hostnames (or \"*.suffix\" patterns) that receive the X-Qwen-Code-Session-Id outbound correlation header. Defaults to Alibaba/DashScope first-party endpoints (dashscope.aliyuncs.com, dashscope-intl.aliyuncs.com, *.dashscope.aliyuncs.com, *.dashscope-intl.aliyuncs.com, *.alibaba-inc.com, *.aliyun-inc.com) so the stable session identifier is not broadcast to third-party LLM providers like OpenAI or Anthropic. Set to [\"*\"] to restore the broadcast-to-everywhere behavior, or [] to fully disable the header.",
+          "type": "array",
+          "items": {
+            "type": "string"
+          }
         }
       },
       "additionalProperties": true,