Automatically trigger Vercel deployments when code changes are committed, with environment-specific deployment strategies and rollback on failure. Setup: Export environment variables 'export VERCEL_TOKEN=your_token' and 'export VERCEL_PROJECT_ID=your_project_id' (get your token from vercel.com/account/tokens and project ID from your Vercel dashboard). Hook triggers on PostToolUse for Write, Edit, and MultiEdit operations affecting source code files.
Synchronize environment variables between local development and Vercel deployments, ensuring consistency across all environments. Detects changes to .env files and provides options to sync with Vercel, validates environment variable format, and ensures required variables are present. Setup: Export 'export VERCEL_TOKEN=your_token' (get from vercel.com/account/tokens).