From f6fb1a7cdd55502b1d33844c69cdd823a3ed7db8 Mon Sep 17 00:00:00 2001
From: Aiden Cline <63023139+rekram1-node@users.noreply.github.com>
Date: Tue, 28 Jul 2026 14:25:33 -0500
Subject: [PATCH] fix(ai): retry transient client statuses (#39391)

---
 packages/ai/src/provider-error.ts       | 3 +--
 packages/ai/test/provider-error.test.ts | 6 ++++++
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/packages/ai/src/provider-error.ts b/packages/ai/src/provider-error.ts
index 963c7599cf..a155719319 100644
--- a/packages/ai/src/provider-error.ts
+++ b/packages/ai/src/provider-error.ts
@@ -135,7 +135,7 @@ export function classifyProviderFailure(input: ProviderFailure): LLMError["reaso
       rateLimit: input.rateLimit,
     })
   }
-  if (input.status !== undefined && input.status >= 500)
+  if (input.status === 408 || input.status === 409 || (input.status !== undefined && input.status >= 500))
     return new ProviderInternalReason({
       ...common,
       status: input.status,
@@ -145,7 +145,6 @@ export function classifyProviderFailure(input: ProviderFailure): LLMError["reaso
   if (
     input.status === 400 ||
     input.status === 404 ||
-    input.status === 409 ||
     input.status === 413 ||
     input.status === 422
   )
diff --git a/packages/ai/test/provider-error.test.ts b/packages/ai/test/provider-error.test.ts
index ea0464089e..667009fa0a 100644
--- a/packages/ai/test/provider-error.test.ts
+++ b/packages/ai/test/provider-error.test.ts
@@ -58,6 +58,12 @@ describe("provider error classification", () => {
     ).toEqual(["ProviderInternal", "ProviderInternal"])
   })
 
+  test("classifies transient client statuses as provider internal", () => {
+    expect(
+      [408, 409].map((status) => classifyProviderFailure({ message: `HTTP ${status}`, status })._tag),
+    ).toEqual(["ProviderInternal", "ProviderInternal"])
+  })
+
   test("classifies nested provider codes when a top-level code is also present", () => {
     expect(
       [