twilio-communications

SKILL.md

Multi-channel communication platform: SMS, voice calls, WhatsApp, and 2FA verification.

Covers SMS sending with E.164 validation, message segmentation awareness, and delivery callbacks; supports 80 messages per second default rate limit

Twilio Verify service for OTP and 2FA across SMS, voice calls, email, and WhatsApp with built-in fraud prevention and rate limiting

TwiML-based IVR systems using XML markup for voice menus, keypad/speech input gathering, call routing, and voicemail recording

Includes request signature validation, credential management best practices, and session tracking patterns for stateless webhook architectures

Twilio Communications

Build communication features with Twilio: SMS messaging, voice calls,
WhatsApp Business API, and user verification (2FA). Covers the full
spectrum from simple notifications to complex IVR systems and multi-channel
authentication. Critical focus on compliance, rate limits, and error handling.

Patterns

SMS Sending Pattern

Basic pattern for sending SMS messages with Twilio.
Handles the fundamentals: phone number formatting, message delivery,
and delivery status callbacks.