From 5f8f5236b860da0489983d488a25ff2664bc58df Mon Sep 17 00:00:00 2001
From: Naveen Chatlapalli <naveen.aifanatic@gmail.com>
Date: Thu, 29 Jan 2026 01:03:54 -0600
Subject: [PATCH] fix(providers): add "field required" to failover error
 patterns

Add "field required" to ERROR_PATTERNS.format array to trigger auth
profile rotation and model failover when Google Antigravity returns
validation errors.

Fixes #3777

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
---
 .../pi-embedded-helpers.iscloudcodeassistformaterror.test.ts     | 1 +
 src/agents/pi-embedded-helpers/errors.ts                         | 1 +
 2 files changed, 2 insertions(+)

diff --git a/src/agents/pi-embedded-helpers.iscloudcodeassistformaterror.test.ts b/src/agents/pi-embedded-helpers.iscloudcodeassistformaterror.test.ts
index 2433642e4..b746f3fec 100644
--- a/src/agents/pi-embedded-helpers.iscloudcodeassistformaterror.test.ts
+++ b/src/agents/pi-embedded-helpers.iscloudcodeassistformaterror.test.ts
@@ -16,6 +16,7 @@ describe("isCloudCodeAssistFormatError", () => {
       "messages.1.content.1.tool_use.id",
       "tool_use.id should match pattern",
       "invalid request format",
+      "Field required",
     ];
     for (const sample of samples) {
       expect(isCloudCodeAssistFormatError(sample)).toBe(true);
diff --git a/src/agents/pi-embedded-helpers/errors.ts b/src/agents/pi-embedded-helpers/errors.ts
index 9bc92f259..954a3d894 100644
--- a/src/agents/pi-embedded-helpers/errors.ts
+++ b/src/agents/pi-embedded-helpers/errors.ts
@@ -395,6 +395,7 @@ const ERROR_PATTERNS = {
     "tool_use_id",
     "messages.1.content.1.tool_use.id",
     "invalid request format",
+    "field required",
   ],
 } as const;