OptionalcauseReadonlyresponseOptionalstackOptional ReadonlystatusStaticstackThe Error.stackTraceLimit property specifies the number of stack frames
collected by a stack trace (whether generated by new Error().stack or
Error.captureStackTrace(obj)).
The default value is 10 but may be set to any valid JavaScript number. Changes
will affect any stack trace captured after the value has been changed.
If set to a non-number value, or set to a negative number, stack traces will not capture any frames.
StaticcaptureCreates a .stack property on targetObject, which when accessed returns
a string representing the location in the code at which
Error.captureStackTrace() was called.
const myObject = {};
Error.captureStackTrace(myObject);
myObject.stack; // Similar to `new Error().stack`
The first line of the trace will be prefixed with
${myObject.name}: ${myObject.message}.
The optional constructorOpt argument accepts a function. If given, all frames
above constructorOpt, including constructorOpt, will be omitted from the
generated stack trace.
The constructorOpt argument is useful for hiding implementation
details of error generation from the user. For instance:
function a() {
b();
}
function b() {
c();
}
function c() {
// Create an error without stack trace to avoid calculating the stack trace twice.
const { stackTraceLimit } = Error;
Error.stackTraceLimit = 0;
const error = new Error();
Error.stackTraceLimit = stackTraceLimit;
// Capture the stack trace above function b
Error.captureStackTrace(error, b); // Neither function c, nor b is included in the stack trace
throw error;
}
a();
OptionalconstructorOpt: FunctionStaticprepare
Thrown by retrieveResponse (and the background poll loop) when a stored response is not found (HTTP 404). This typically means the ~10-minute retention window has elapsed. Callers should clear the stored id, settle the associated stage as failed, and surface a retry prompt.
Extends NonRetryableLlmError so it inherits the fail-fast disposition: a 404 is deterministic — re-fetching the same aged-out id will 404 again — so the framework must not burn a retry. Inheriting the base (which carries no
retryReasontag) meansllmStageclassifies it asnon_retryable, exactly as the prior genericNonRetryableLlmErrordid when a 404 surfaced mid-poll — so this is a strictly more specific, behavior-preserving subclass. Callers thatinstanceof NonRetryableLlmErrorstill match; callers wanting the aged-out signal specifically caninstanceof ResponseNotFoundError.