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Class: ContextWindowExceededError

Defined in: packages/agentos/src/core/llm/providers/errors/ContextWindowExceededError.ts:9

Thrown in place of a call whose request does not fit the model's context window: the size check refused to send it, so it carries no HTTP status. Its code is retryable, so a fallback walk starts at once, and the provider health registry never records it.

Extends​

  • Error

Constructors​

Constructor​

new ContextWindowExceededError(args): ContextWindowExceededError

Defined in: packages/agentos/src/core/llm/providers/errors/ContextWindowExceededError.ts:17

Parameters​

args​
contextWindow​

number

estimatedInputTokens​

number

model​

string

outputTokens​

number

provider​

string

Returns​

ContextWindowExceededError

Overrides​

Error.constructor

Properties​

code​

readonly code: "CONTEXT_WINDOW_EXCEEDED" = CONTEXT_WINDOW_EXCEEDED_CODE

Defined in: packages/agentos/src/core/llm/providers/errors/ContextWindowExceededError.ts:10

contextWindow​

readonly contextWindow: number

Defined in: packages/agentos/src/core/llm/providers/errors/ContextWindowExceededError.ts:13

estimatedInputTokens​

readonly estimatedInputTokens: number

Defined in: packages/agentos/src/core/llm/providers/errors/ContextWindowExceededError.ts:14

message​

message: string

Defined in: apps/agentos-live-docs/node_modules/typescript/lib/lib.es5.d.ts:1077

Inherited from​

Error.message

model​

readonly model: string

Defined in: packages/agentos/src/core/llm/providers/errors/ContextWindowExceededError.ts:12

name​

name: string

Defined in: apps/agentos-live-docs/node_modules/typescript/lib/lib.es5.d.ts:1076

Inherited from​

Error.name

outputTokens​

readonly outputTokens: number

Defined in: packages/agentos/src/core/llm/providers/errors/ContextWindowExceededError.ts:15

provider​

readonly provider: string

Defined in: packages/agentos/src/core/llm/providers/errors/ContextWindowExceededError.ts:11

stack?​

optional stack: string

Defined in: apps/agentos-live-docs/node_modules/typescript/lib/lib.es5.d.ts:1078

Inherited from​

Error.stack

stackTraceLimit​

static stackTraceLimit: number

Defined in: packages/agentos/node_modules/.pnpm/@types+node@22.20.5/node_modules/@types/node/globals.d.ts:68

The 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.

Inherited from​

Error.stackTraceLimit

Methods​

captureStackTrace()​

static captureStackTrace(targetObject, constructorOpt?): void

Defined in: packages/agentos/node_modules/.pnpm/@types+node@22.20.5/node_modules/@types/node/globals.d.ts:52

Creates 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();

Parameters​

targetObject​

object

constructorOpt?​

Function

Returns​

void

Inherited from​

Error.captureStackTrace

prepareStackTrace()​

static prepareStackTrace(err, stackTraces): any

Defined in: packages/agentos/node_modules/.pnpm/@types+node@22.20.5/node_modules/@types/node/globals.d.ts:56

Parameters​

err​

Error

stackTraces​

CallSite[]

Returns​

any

See​

https://v8.dev/docs/stack-trace-api#customizing-stack-traces

Inherited from​

Error.prepareStackTrace