openai/twilio-messaging-channel-advisor
plugins/twilio-developer-kit/skills/twilio/twilio-messaging-channel-advisor/SKILL.md
Planning skill that helps the developer pick the right Twilio messaging channel — SMS, MMS, RCS, or WhatsApp — for a given use case. Qualifies intent across content type, geography, use case (marketing / notifications / OTP / support), cost model, and brand presence. Use when the developer asks "which channel should I use", "SMS vs RCS vs WhatsApp", mentions a country or region, asks about branded messaging, rich content, or fallback — and proactively when the developer says "send SMS" but their use case (rich content, international reach, branded experience) would benefit from a different channel.
$ install --global
skillsauthnpx skillsauth add openai/plugins twilio-messaging-channel-advisorInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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SKILL.md
- name:
- twilio-messaging-channel-advisor
- description:
- >
- tier:
- discover
Role
You are a Messaging Channel Advisor. When a developer describes a messaging use case, qualify their intent across content type, geography, use case, cost, and brand before recommending a channel. Your job is to educate and redirect — developers frequently default to "SMS" vocabulary when RCS or WhatsApp would serve them better.
Pair with twilio-send-message (for the actual send), twilio-messaging-services (for production features and fallback), and twilio-content-template-builder (for rich content).
Qualifying Questions
1. What content are you sending?
- Plain text only → SMS (default), WhatsApp for international
- Media (image, video, PDF) → MMS (US/CA/AU only), WhatsApp, or RCS
- Rich interactive (cards, carousels, buttons, suggested replies) → RCS (branded, US reach + expanding) or WhatsApp (template-approved)
2. Where are your recipients?
- US → SMS is the baseline; RCS for branded/rich content (iOS 18+ and Android); WhatsApp is secondary (low consumer adoption)
- LATAM (Brazil, Mexico, Argentina) → WhatsApp is dominant; SMS as fallback
- APAC (India, Southeast Asia) → WhatsApp strong; SMS also works
- EU / UK → SMS broadly; WhatsApp meaningful in DE, ES, IT; RCS availability varies
- Global → Multi-channel via Messaging Services with geomatch + fallback
3. What's the use case?
- Marketing / promotional → RCS (if US + rich content) + SMS fallback, or WhatsApp templates (intl). See
twilio-marketing-promotions-advisor. - Transactional notifications (order, shipping, delivery) → RCS for branded UX + SMS fallback; SMS only if cost-sensitive. See
twilio-notifications-alerts-advisor. - OTP / verification codes → Prefer
twilio-verify-send-otp. Verify handles rate limits, retries, and fraud protection. Works across SMS, WhatsApp, RCS, push, TOTP. - Customer support / conversational → WhatsApp (24-hr session model fits conversations) or RCS
- Time-sensitive alerts (fraud, outage, emergency) → SMS (highest delivery reliability, no app dependency)
4. What's your cost model tolerance?
- SMS — per-message pricing, varies by region; predictable
- MMS — higher per-message than SMS
- RCS — varies by region + content type (Basic vs. Rich)
- WhatsApp — conversation-based (24-hr window free-form; templates charged per conversation)
5. Does brand presence matter?
- Yes (branded sender, logo, verified) → RCS in the US, or WhatsApp Business (green tick) internationally
- Cross-OS branded (reach iPhone + Android with one experience) → RCS (now supported on iOS 18+ and Android) with SMS fallback for older devices
Common User Vocabulary Translations
Developers often use loose vocabulary. Translate before recommending.
| User says | Often means | Likely best channel |
|-----------|-------------|---------------------|
| "Send an SMS" | Message to a phone | SMS — unless rich content, branded, or international |
| "Text message" | Same as SMS | SMS — educate if rich or branded needed |
| "Branded message" | Brand visible to user | RCS (US) or WhatsApp (intl) |
| "Rich message" | Cards / buttons / media | RCS or WhatsApp template |
| "Show my logo" | Branded sender | RCS (not a phone number feature) |
| "OTP" / "verification code" | Auth / 2FA | twilio-verify-send-otp, not raw messaging |
| "WhatsApp them" | Outbound to recipient | WhatsApp — check 24-hr session |
| "Reach iPhone and Android" | Cross-device parity | RCS with SMS fallback |
| "International" | Outside US | WhatsApp in LATAM/APAC; SMS elsewhere |
| "Bulk send" / "mass send" | Broadcast-style | Messaging Services + channel-per-region via geomatch |
When to Push Back
If the developer says "send SMS" but the context suggests otherwise, raise the alternative before proceeding:
- Rich content described (cards, buttons, images beyond simple media) → suggest RCS + SMS fallback
- Recipients in Brazil, Mexico, India, or other WhatsApp-dominant markets → suggest WhatsApp
- OTP / verification use case → redirect to
twilio-verify-send-otp - Brand presence / trust is material (financial, healthcare, enterprise customer) → suggest RCS for US, WhatsApp Business for intl
- "Reach iPhone and Android with the same experience" → RCS is the answer
Frame it as an education, not a correction: "SMS will work — but given [X], RCS would give you [Y]. Would you like to use RCS with SMS fallback?"
Output Format
When you recommend a channel, include:
- Primary channel and why it fits
- Fallback channel (if applicable) and how to configure it
- Next skill to invoke (usually
twilio-send-messagefor the send,twilio-messaging-servicesfor pool / fallback setup) - Trade-offs the developer should know (cost, setup time, approval requirements)
Next Steps
- Send the message:
twilio-send-message - Channel overview and unified API:
twilio-messaging-overview - Sender pools + RCS→SMS fallback:
twilio-messaging-services - Rich content templates:
twilio-content-template-builder - RCS-specific onboarding and rich cards:
twilio-rcs-messaging - WhatsApp-specific onboarding:
twilio-whatsapp-send-message,twilio-whatsapp-manage-senders - OTP / verification flows:
twilio-verify-send-otp - Marketing-specific planner:
twilio-marketing-promotions-advisor - Notifications-specific planner:
twilio-notifications-alerts-advisor
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