Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add finsilabs/awesome-ecommerce-skills --skill sms-marketinggit clone --depth 1 https://github.com/finsilabs/awesome-ecommerce-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/finsilabs/awesome-ecommerce-skills/sms-marketing)<a href="https://agentmods.dev/skills/finsilabs/awesome-ecommerce-skills/sms-marketing"><img src="https://agentmods.dev/badge/skills/finsilabs/awesome-ecommerce-skills/sms-marketing/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/finsilabs/awesome-ecommerce-skills/sms-marketing"><img src="https://agentmods.dev/badge/skills/finsilabs/awesome-ecommerce-skills/sms-marketing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00030 | $0.02560 |
| Opus 5 | $0.00015 | $0.01280 |
| Sonnet 5 | $0.00006 | $0.00512 |
| Haiku 4.5 | $0.00003 | $0.00256 |
Grade A, and why
sms-marketing scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 207 lines — stays where its author put it; the contents beside it link to each section on GitHub.
SMS Marketing
Overview
SMS marketing achieves 98% open rates and click-through rates 5–10× higher than email, making it one of the highest-performing direct channels for ecommerce. However, SMS is heavily regulated — TCPA in the US requires explicit written consent, and violations carry fines up to $1,500 per message. Dedicated SMS apps (Postscript, Attentive, Klaviyo SMS) handle compliance, opt-in flows, and 10DLC registration automatically. Custom Twilio implementation is only needed for headless stores.
When to Use This Skill
- When launching an SMS marketing channel alongside existing email automation
- When needing TCPA-compliant opt-in flows at checkout and via pop-ups
- When wanting to segment SMS campaigns by purchase history, lifecycle stage, or location
- When sending transactional SMS (shipping updates) vs. marketing SMS to different opt-in lists
- When auditing an existing SMS program for compliance issues
Core Instructions
Step 1: Choose the right SMS platform
| Platform | Best For | Shopify | WooCommerce | BigCommerce | Price |
|---|---|---|---|---|---|
| Postscript | Shopify-native, segmentation + flows | App Store | — | — | Free tier; $100+/mo |
| Attentive | Mid-market, advanced A/B testing | App Store | Via integration | Via integration | $400+/mo |
| Klaviyo SMS | Already using Klaviyo for email | App Store | Plugin | App Marketplace | Adds to Klaviyo plan |
| SMSBump (Yotpo SMS) | WooCommerce + Shopify | App Store | Plugin | — | Free tier; $19+/mo |
| Twilio | Custom/headless, developer-controlled | Via API | Via API | Via API | Pay-per-message |
Recommendation: Use Postscript for Shopify and SMSBump for WooCommerce. If already using Klaviyo, add Klaviyo SMS to keep campaigns and flows in one platform. Use Twilio only for headless stores where you need full programmatic control.
Step 2: Set up SMS opt-in
Shopify with Postscript
- Install Postscript from the Shopify App Store
- Go to Postscript → Keywords and set up your opt-in keyword (e.g., "JOIN") — customers text this to your Postscript number to subscribe
- Go to Postscript → Sign-up Units to add opt-in forms:
- Checkout opt-in: Postscript adds a checkbox at checkout automatically — configure the consent language under Settings → Checkout
- Pop-up: create a timed pop-up offering a discount (e.g., "Get 10% off — text JOIN to [number]")
- Important compliance settings under Postscript → Settings → Compliance:
- Confirm the consent language is displayed: "By subscribing, you agree to receive marketing texts. Reply STOP to unsubscribe."
- Never pre-check the SMS opt-in box at checkout — TCPA requires un-checked by default
- Go to Postscript → Flows to build automated sequences:
- Welcome series: triggered on opt-in — immediate welcome message + discount code
- Cart abandonment: triggered when Shopify detects an abandoned checkout (different from email; can send even without email)
- Browse abandonment: triggered by high-intent browsing + no purchase within 4 hours
What ships with it
7 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- evals/compliant-opt-in-and-consent-storage/criteria.json 2.7 KB
- evals/compliant-opt-in-and-consent-storage/task.md 1.5 KB
- evals/inbound-sms-keyword-webhook-handling/criteria.json 3.0 KB
- evals/inbound-sms-keyword-webhook-handling/task.md 1.6 KB
- evals/marketing-sms-send-with-compliance-check/criteria.json 3.1 KB
- evals/marketing-sms-send-with-compliance-check/task.md 1.5 KB
- tile.json 215 B
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 9d ago First seen · 207 lines · 30 tokens per session scan A 18cbc00abc04
sms-marketing is a skill published in the GitHub repository finsilabs/awesome-ecommerce-skills (52 stars, last pushed 6mo ago), licensed MIT. It adds 30 tokens to every session and 2,560 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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