Five modes for five requests
- The letter writer builds a full argument from headline to closing note.
- The enhancer finds weak sections in copy you already have and shows each rewrite beside the original.
- The converter turns every feature into a benefit, an emotional driver, and one ready line.
- The value proposition writer drafts five to ten statements, labeled by angle.
- The headline generator returns at least ten options in five types, each with a note on when to use it.
The order of a long-form letter
The letter opens with a headline about the reader’s outcome or pain, never the product name. A hook earns the next sentence, then the problem is named in concrete terms without exaggeration. The cost of staying stuck follows, and only then does the solution appear, framed by what changes.
Benefits come next, each with what it is, why it matters, and what life looks like after. Proof, the full offer, clear refund terms, and one specific call to action follow. A closing note restates the most important benefit.
Features become outcomes.
Before it writes any benefit, the skill asks why the point matters to the person reading right now. A feature such as a real time dashboard becomes the reader’s ability to see what is working today instead of next week. Each benefit is tied to a driver such as safety, belonging, status, freedom, or achievement.
One argument, many formats
After the long version, the skill can compress the same argument into a teaser page of 300 to 500 words, an email sequence of three to five messages, and an X thread. It can also outline an Instagram carousel, short video hooks, and webinar slides. Each version keeps the same core promise instead of inventing a new one.
Sales copy modes in the sales-copywriting file
The five modes, the letter structure, the tones, and the repurposing formats are in the sales-copywriting skill file on GitHub. It is released under the MIT License, “Copyright (c) 2026 ScayverGraphix.” The skills follow the Agent Skills spec published by vercel-labs/skills.
Name the offer and the reader.
Say “write a sales letter” or “convert these features into benefits,” and give the offer, the audience, and the result they want. If one detail is unclear, the skill asks a single focused question instead of five. The readme links it with email-marketing and landing-page-cro, so add the three with npx skills add scayver/marketing-skills --skill sales-copywriting email-marketing landing-page-cro.
Keep the urgency honest.
The skill says so in its own rules: deadline and scarcity copy must describe something real. Where you have no testimonials yet, it writes bracketed examples that show what proof to gather and where it belongs. Replace them with real, approved quotes, or leave the section out until you have them.
Room for a complex offer
Our Sales Page Copy service builds the page around the real buying questions: who the offer suits, what it includes and excludes, and what happens after an inquiry. It does that without manufacturing urgency or stretching the promise.