Domain Primitives in Go: One Type Per Real-World Concept

Book: Hexagonal Architecture in Go Also by me: Thinking in Go (2-book series) — Complete Guide to Go Programming + Hexagonal Architecture in Go My project: Hermes IDE | GitHub — an IDE for developers who ship with Claude Code and other AI coding tools Me: xgabriel.com | GitHub You're reviewing a pull request. The function signature is this: func TransferFunds ( from string , to string , amount float64 , currency string , note string , ) error Five arguments. Four of them are strings. The reviewe