You're building something that wraps an AI API into a product people might actually pay for. This covers the stuff that matters: prompt engineering as product work, tracking costs so you don't get destroyed by your bill, output validation so the AI doesn't embarrass you, and model selection trade-offs. It's honest about the thin wrapper problem and pushes you toward real differentiation. Use it when you're past the "just call the API" phase and need to think about cost per user, rate limiting, and making something defensible. The code examples are practical, from token tracking to structured output parsing.
npx skills add https://github.com/davila7/claude-code-templates --skill ai-wrapper-product