[Go in Practice] Writing Modern Go with AI: Testing JetBrains go-modern-guidelines and Refactoring a 1,039-line main.go

7.5 relevance

AI-assisted Go refactoring with JetBrains tooling is highly actionable and directly relevant to modern development practices.

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Why It Matters

For platform engineers and Go developers using AI-assisted coding, this tool directly solves the problem of LLMs generating pre-1.21 patterns (like `interface{}` or `sort.Slice`) when your project targets modern Go, reducing technical debt and CI failures from version mismatches.

Key Takeaways

Integrate go-modern-guidelines into your AI agent's system prompt and CI pipeline to enforce version-appropriate Go syntax and eliminate frequency-biased legacy patterns.

[Go in Practice] Writing Modern Go with AI: Testing JetBrains go-modern-guidelines and Refactoring a 1,039-line main.go

Summary

JetBrains' go-modern-guidelines CLI helps AI agents write idiomatic Go by providing version-aware syntax rules, addressing both knowledge cutoffs and frequency bias in training data. The tool returns 45 guidelines for Go 1.24 and 54 for 1.27, ensuring agents only suggest features compatible with the project's actual Go version. A real-world refactoring of a 1,039-line main.go replaced a hand-rolled string search with a single `strings.Contains()` call, demonstrating how the plugin prevents outdated patterns like manual loops over standard library functions.

Author

Evan Lin