fix(agents): classify 'upstream request failed' as server_error for failover

wings1029 · claude · wings1029 · commit 920ff5a45349 · 2026-06-21T16:38:08.000+08:00
Provider errors with message 'Upstream request failed' (error type upstream_error) were not matched by the existing 'upstream error' or 'upstream connect error' patterns, causing them to fall through to unclassified and preventing model fallback from triggering. Add 'upstream request failed' to the server error message patterns so the failover engine correctly classifies it as a transient server error and advances to the next configured fallback model. Fixes #95519 Co-Authored-By: Claude <noreply@anthropic.com>
diff --git a/src/agents/embedded-agent-helpers/failover-matches.ts b/src/agents/embedded-agent-helpers/failover-matches.ts
@@ -119,6 +119,7 @@ const ERROR_PATTERNS = {
     "gateway timeout",
     "upstream error",
     "upstream connect error",
+    "upstream request failed",
     "connection reset",
     // Chinese provider server error messages
     "内部错误",
