From 51865695e44d698100e79d1705e2bd442c9f33ff Mon Sep 17 00:00:00 2001
From: Conor Branagan <472446+conorbranagan@users.noreply.github.com>
Date: Tue, 16 Dec 2025 14:32:27 -0500
Subject: [PATCH] feat(sdk): add xhigh reasoning effort support to TypeScript
 SDK (#8108)

Add "xhigh" to the ModelReasoningEffort type to match the Rust backend
which already supports this reasoning level for models like
gpt-5.1-codex-max.
---
 sdk/typescript/src/threadOptions.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sdk/typescript/src/threadOptions.ts b/sdk/typescript/src/threadOptions.ts
index d81ffc60c..6fdf45447 100644
--- a/sdk/typescript/src/threadOptions.ts
+++ b/sdk/typescript/src/threadOptions.ts
@@ -2,7 +2,7 @@ export type ApprovalMode = "never" | "on-request" | "on-failure" | "untrusted";
 
 export type SandboxMode = "read-only" | "workspace-write" | "danger-full-access";
 
-export type ModelReasoningEffort = "minimal" | "low" | "medium" | "high";
+export type ModelReasoningEffort = "minimal" | "low" | "medium" | "high" | "xhigh";
 
 export type ThreadOptions = {
   model?: string;