Vowel Vanilla JavaScript Integration

Initialize a vowel.to voice agent in plain JavaScript applications with predictable startup and session behavior.

Overview

Use this skill when the app is not React-first and you want direct control over:

• Vowel client lifecycle
• Navigation + automation adapters
• Custom action registration
• Session start/stop UI wiring

Core Principles

1) Register Actions Before startSession()

All custom actions must be registered before the first call to startSession(). Actions added afterward are not available to the active session.