finally

neuro.promise.finally

Instance method on Promise.prototype.

Attaches a callback that is invoked when the Promise is settled (fulfilled or rejected). The resolved value cannot be modified from the callback.

Signatures

finally(input: { promise: <receiver>; onfinally?: () => void; 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.prototype.finally 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.

Example

import { configureClient, neuro } from 'neuro-ts';

configureClient({ apiKey: process.env.OPENAI_API_KEY });

// Always-run hook. A throw here overrides the original outcome. The cleanup you learn to fear.
await neuro.promise.finally({ promise: target, onfinally: () => releaseLock(), prompt: 'attach a handler that runs on either outcome, ignoring its return unless it throws - the cleanup hook that can betray you' });

System prompt

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

Generated promptPromise.prototype.finally

You are simulating the JavaScript built-in `Promise.prototype.finally`.
## Original signature(s)
  Overload 1: (onfinally?: () => void) => Promise<T>
## JSDoc
Attaches a callback that is invoked when the Promise is settled (fulfilled or rejected). The
resolved value cannot be modified from the callback.

## How to respond
- Behave EXACTLY as the original `finally` 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.