Blog
Blog
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What are Claude Skills? A plain-English guide for experts
A Claude Skill is a folder of instructions Claude loads only when your request needs it. Here's how Skills work, how they differ from Projects and connectors, and how to add one.
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How to turn your online course into an AI tool
Most creators who ask how to turn a course into AI picture a chatbot that answers questions about the lessons. The more useful version applies your method to each student's own work. Here's how to build it.
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How to sell a Claude Skill without giving away the SKILL.md
You can't keep a SKILL.md secret once a customer installs it. You can sell access instead: the Skill stays on your server and customers use it from their own AI app.
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Selling a Claude Skill on Gumroad vs hosting it: which is right for you?
Gumroad is the easiest way to sell a Claude Skill as a file. When that works, what you give up after the sale, and when hosting it is the better choice.
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How to make money with Claude Skills (without giving away the files)
Most of the money in Claude Skills isn't in selling the files. Here are the five ways people actually earn from Skills, what each looks like in practice, and the catch with each.
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Custom GPTs are being retired: how to move yours to a Skill
OpenAI is retiring custom GPTs on December 11, 2026. Here's what moves to a ChatGPT plugin, what doesn't, and how to move a GPT you built or sold without losing the people who use it.
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What AI do Kajabi, Teachable, Thinkific, Skool and Circle offer course creators?
Every course platform now says it has AI. Here's what Kajabi, Teachable, Thinkific, Skool and Circle actually offer, split into AI for you and AI for your students.
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Claude Skills vs agents vs Projects: which to use when
Claude has four ways to extend what it does, and they're easy to mix up. What Skills, Projects, subagents and connectors each do, and which to use when.
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Is there a Claude Skills marketplace? Where to find Skills, and how to sell one
There is no official Claude Skills store. Skills spread through plugin marketplaces and free directories. Here's where to find them, and how to sell one without giving away the file.
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Claude marketing skills: 5 examples built from real playbooks
Marketing runs on playbooks, and a playbook is exactly what a Claude Skill holds. Five Claude marketing skills built from real ones, what makes them work, and where to find more.
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Do Claude Skills work in ChatGPT and Codex?
Claude Skills use an open format that OpenAI's Codex and ChatGPT now read too. Here's how to use one there, what to change, and where plans differ.
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Claude's Skill Creator: how to use it, and where it stops
Anthropic's skill-creator is a Skill that builds Skills. Here's how to use it in Claude and Claude Code, how to get a better result, and where it stops.