diff --git a/plugins/codex/scripts/lib/app-server.mjs b/plugins/codex/scripts/lib/app-server.mjs
index 127c8376..9c94ce18 100644
--- a/plugins/codex/scripts/lib/app-server.mjs
+++ b/plugins/codex/scripts/lib/app-server.mjs
@@ -32,6 +32,7 @@ const DEFAULT_CLIENT_INFO = {
 /** @type {InitializeCapabilities} */
 const DEFAULT_CAPABILITIES = {
   experimentalApi: false,
+  requestAttestation: false,
   optOutNotificationMethods: [
     "item/agentMessage/delta",
     "item/reasoning/summaryTextDelta",
diff --git a/plugins/codex/scripts/lib/codex.mjs b/plugins/codex/scripts/lib/codex.mjs
index f2fe88bd..2db9d1fb 100644
--- a/plugins/codex/scripts/lib/codex.mjs
+++ b/plugins/codex/scripts/lib/codex.mjs
@@ -60,8 +60,7 @@ function buildThreadParams(cwd, options = {}) {
     approvalPolicy: options.approvalPolicy ?? "never",
     sandbox: options.sandbox ?? "read-only",
     serviceName: SERVICE_NAME,
-    ephemeral: options.ephemeral ?? true,
-    experimentalRawEvents: false
+    ephemeral: options.ephemeral ?? true
   };
 }