What problem does it solve? Launching an SMS marketing program without TCPA consent, A2P 10DLC registration, or quiet-hour discipline exposes a business to carrier filtering and class-action penalties of $500–$1,500 per message. This Skill guides the design of compliant SMS sequences, copy, cadence, and measurement before any message is sent. ## Core Features & Use Cases - Compliance-first planning: Audits opt-in mechanisms, A2P 10DLC registration status, quiet hours, and STOP/HELP handling across US TCPA, EU GDPR, and Canada CASL jurisdictions. - Sequence and copy design: Produces timed message flows (abandoned cart, welcome, win-back, post-purchase, replenishment) with character counts, GSM-7/UCS-2 segment budgets, sender IDs, and compliance footers. - Platform and measurement guidance: Compares Klaviyo SMS, Postscript, Attentive, Twilio, and others, and defines KPIs like opt-out rate, revenue per send, and A/B test queues. - Use Case: A Shopify skincare brand with 80K email subscribers asks where to start with SMS; the Skill runs a compliance readiness check, recommends a platform, and ranks flows by ROI starting with abandoned cart. ## Quick Start Ask the agent to design a compliant abandoned cart SMS sequence for your store, including timing, message copy with character counts, and opt-out language.