JetBrains/go-modern-guidelines

[](https://confluence.jetbrains.com/display/ALL/JetBrains+on+GitHub) This repository contains guidelines for code agents that help them write modern Go code. For example, an agent with these guidelines uses max(a, b) instead of an if-else block, slices.Contains instead of a manual loop, cmp.Or(a, b, c) instead of a chain of nil checks. It also knows about recent additions like new(42) to get a pointer to a value and errors.AsTypeT for type-safe error matching—both from Go 1.26. The guidelines cover the most useful features from Go 1.0 through Go 1.27, including everything targeted by the modernize analyzer. See FEATURES.md for the complete list with detailed descriptions and examples. An agent will: All coding agents tend to generate outdated Go. Two reasons: These guidelines fix both problems by giving the agent an explicit reference. This aligns with the Go team's direction. The modernize analyzer exists to automatically update existing code to use newer idioms (see this talk from…