
How to Build and Sell an AI Second Brain (Full Playbook)
How to build an AI second brain from markdown files, then sell it as a service. The full build steps, the audit wedge, and the retainer.

How to build an AI second brain from markdown files, then sell it as a service. The full build steps, the audit wedge, and the retainer.

Learn how to make money with Claude by packaging your expertise into skills and selling them as a digital product. Real $10K passive income example.

The Claude Code Skills Stack V2 is here: 40+ skills, free lifetime updates, and how I made over $10K from this one digital product.

Claude Skills vs Perplexity Spaces are not even competitors. Spaces help you research and know. Skills help you produce and ship. Use both in sequence.

Claude Skills vs Gemini Gems compared honestly. Gems give you Google-native convenience. Skills give you a portable file you own and can improve.

Free vs paid Claude skills, decided honestly by someone who sells a stack. A simple 3-question test for when to build your own and when to buy.

The 7 best free Claude skill repos on GitHub, honestly ranked. Which repos are worth your time, which to skip, and how to install one safely.

How to turn Claude Projects into Skills, step by step. Rebuild your in-app project as a portable SKILL.md file you own, with no coding required.

8 Claude Skills for SEO that do the jobs an agency bills four figures for: keyword research, AI Overview optimization, local pages, content refresh.

There is no official Claude Skills marketplace yet. Here is what actually exists, how to install a skill, and how to vet one before you run it.
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