Add Voice Message Transcription

This skill adds automatic voice message transcription using OpenAI's Whisper API. When users send voice notes in WhatsApp, they'll be transcribed and the agent can read and respond to the content.

UX Note: When asking the user questions, prefer using the AskUserQuestion tool instead of just outputting text. This integrates with Claude's built-in question/answer system for a better experience.

Prerequisites

USER ACTION REQUIRED

Use the AskUserQuestion tool to present this:

You'll need an OpenAI API key for Whisper transcription.

Get one at: https://platform.openai.com/api-keys

Cost: $0.006 per minute of audio ($0.003 per typical 30-second voice note)

Once you have your API key, we'll configure it securely.