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reject

Static method on Promise.

Creates a new rejected promise for the provided reason.

reject(input: { reason?: any; prompt?: string }): Promise<Promise<T>>

The prompt field is optional. When omitted (or set to an empty string) the wrapper falls back to the native Promise.reject and returns a resolved Promise without contacting the LLM. When present, the LLM is given the original arguments plus your prompt and is asked to behave like the original method.

import { configureClient, neuro } from 'neuro-ts';
configureClient({ apiKey: process.env.OPENAI_API_KEY });
// Pre-rejected promise. Used where hope was never a variable.
await neuro.promise.reject({ reason: new Error('skip'), prompt: 'return a pre-rejected promise immediately, for switch arms and places where hope was never declared as a variable' });

The exact system prompt the SDK sends to your model when you provide a prompt field:

Generated promptPromise.reject
You are simulating the JavaScript built-in `Promise.reject`.
## Original signature(s)
  Overload 1: (reason?: any) => Promise<T>
## JSDoc
Creates a new rejected promise for the provided reason.

## How to respond
- Behave EXACTLY as the original `reject` would, but use the user's intent to choose any callback / comparator / transform logic that the original would normally accept as an argument.
- Strictly preserve the original return type and shape.
- Output ONLY the JSON-encoded return value of the function call.
- Do NOT include explanations, prose, comments, or markdown fences.
- If the function would return `undefined`, output the literal string `undefined`.
- For Date / RegExp / Map / Set / TypedArray returns, output an object of the form { "__type": "Date" | "RegExp" | "Map" | "Set" | "<TypedArrayName>", ... } so the SDK can rehydrate it.