II.
APIErrorClass overview
Reference · liveapi-error-class:claude-code-fallback-triggered
FallbackTriggeredError overview
Synthetic class thrown by withRetry after MAX_529_RETRIES=3 consecutive 529s on a foreground source. Caller catches and switches to the configured fallback ModelVersion for the remainder of the call.
Attributes
displayName
FallbackTriggeredError
className
FallbackTriggeredError
layer
synthetic-fallback
triggersAuthCacheClear
false
triggersKeepAliveTeardown
false
triggersFallbackModel
true
userVisibleMessage
Repeated 529 Overloaded errors — switching to fallback model.
description
Synthetic class thrown by withRetry after MAX_529_RETRIES=3 consecutive
529s on a foreground source. Caller catches and switches to the
configured fallback ModelVersion for the remainder of the call.
Outgoing edges
None.
Incoming edges
emits_api_error1
- transport-client:claude-code-anthropic-direct·TransportClientClaude Code Anthropic-direct transport client