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SMS marketing skill

SMS marketing is part of Corey Haines' marketing skills. Its job is to plan SMS and MMS flows: welcome, abandoned cart, win-back and promotions. It loads on its own when a request matches its description, and you can also call it by name.

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When the agent reaches for it

The agent keeps every installed skill's description in view and loads the full instructions when a request matches. This is the description it reads:

When the user wants to plan, build, or optimize SMS or MMS marketing — including welcome flows, abandoned cart texts, post-purchase, win-back, promotional sends, or transactional/auth SMS. Also use when the user mentions "SMS marketing," "text message campaigns," "SMS sequence," "SMS automation," "abandoned cart text," "post-purchase SMS," "Klaviyo SMS," "Postscript," "Attentive," "Twilio," "A2P 10DLC," "TCPA," "SMS compliance," "short code," "toll-free SMS," "MMS campaign," "should I do SMS," or "SMS vs email." For email sequences, see emails. For SMS copy framing, see copywriting. For opt-in popups that capture phone numbers, see popups.

What the instructions cover

The sections of its SKILL.md, in order.

  • Before Starting
  • When SMS Beats Email
  • Compliance — Read First
  • Phone Number Types (US)
  • Core Principles
  • SMS Sequence Types
  • SMS Copy Guidelines
  • Platform Selection
  • Measurement
  • Output Format
  • Task-Specific Questions
  • Common Mistakes
  • Tool Integrations
  • Related Skills

What ships with it

Besides SKILL.md, the folder carries these. The agent opens them only when a step in the instructions calls for one.

  • evals/ 1 file · 9 KB
  • references/ 3 files · 24 KB

Install the SMS marketing skill

For Claude Code, run this in a terminal. It comes from the publisher's own instructions.

terminal 
npx skills add coreyhaines31/marketingskills --skill sms -a claude-code

License: MIT.

In Longwave, add Marketing Skills from the marketplace. It installs all 50 of its skills, and your Claude Code, Codex and OpenCode threads can use them.

Questions people ask

How do I install the SMS marketing skill?

For Claude Code, run npx skills add coreyhaines31/marketingskills --skill sms -a claude-code in a terminal. In Longwave, add Marketing Skills from the marketplace, and its skills reach your Claude Code, Codex and OpenCode threads.

When does the agent use the SMS marketing skill?

When a request matches its description. The agent keeps only the name and description of each installed skill in view, and reads the full instructions when a task fits. You can also ask for it by name.

Use your skills in every harness.

Longwave installs a skill collection once, and your Claude Code, Codex and OpenCode threads can all use it.

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