Modern Go Guidelines
Apache-2.0 JetBrains skill and plugin that gives coding agents version-aware guidance for modern, idiomatic Go.
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- Go developers using Junie, Claude Code, Codex, Cursor, OpenCode, or another Agent Skills-compatible coding agent
- Teams maintaining repositories across several Go versions that need version-scoped guidance instead of one global prompt
- Engineering leads trying to reduce review churn from outdated language and standard-library patterns in agent-generated code
- It supplies guidance rather than enforcement; generated code can still be incorrect, incompatible, or inappropriate for a project’s style.
- The helper targets Go 1.25+, so older local installations rely on automatic toolchain switching and may download a newer toolchain on first use.
- Release metadata is inconsistent: plugin manifests and the changelog say 1.1.1, while the newest Git tag is v0.1.1 and GitHub has no formal releases.
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Modern Go Guidelines addresses a subtle but expensive vibe-coding problem: even capable coding agents often reproduce older Go idioms because their training data lags new releases and contains far more legacy examples than modern ones. JetBrains’ GoLand Team packages a version-aware guideline catalog and helper CLI so supported agents can read a repository’s go.mod and load advice that fits that exact Go version instead of blindly targeting the newest syntax.
Modern Go Guidelines is an official JetBrains GoLand Team project that helps coding agents avoid stale Go patterns. Its small CLI reads a project’s go.mod version and returns only applicable language and standard-library guidance, covering Go 1.0 through Go 1.27 at the audited revision. The same skill is packaged for Junie, Claude Code, Codex, and Cursor, with a skills.sh path for OpenCode and other compatible agents. This makes it a focused vibe-coding companion for Go repositories rather than a general prompt collection, although teams still need tests, go vet, static analysis, and human review to verify generated code.
Why Choose Modern Go Guidelines?
Choose Modern Go Guidelines when agent-generated Go repeatedly uses dated loops, verbose compatibility patterns, or standard-library workarounds that no longer fit the repository’s declared toolchain.
The version-aware helper is the main differentiator: it scopes advice from Go 1.0 through Go 1.27 to the project version rather than applying one moving “modern Go” prompt everywhere.
Dedicated packages for Junie, Claude Code, Codex, and Cursor plus skills.sh support make the same reviewed guidance portable across several coding-agent environments.
Do not treat the skill as a compiler or policy gate. Pin a reviewed revision and verify every change with tests, go vet, static analysis, project conventions, and human review.
Key Features
Version-aware CLI reads go.mod and returns only language and standard-library guidance available to the project’s declared Go version.
Audited guidance spans Go 1.0 through Go 1.27 and includes the feature set targeted by Go’s modernize analyzer.
Dedicated marketplace packages for Junie, Claude Code, Codex, and Cursor, plus skills.sh installation for OpenCode and other compatible agents.
Automatic invocation when a Go task is relevant, with explicit commands available when developers want to request the guidance directly.
Local cache installation keeps the helper outside the target repository and supports a development override for testing guideline changes.
Apache-2.0 source includes the guideline schema, generated feature reference, CLI tests, plugin manifests, and active issue and pull-request history.
Pros & Cons
- Targets a concrete source of agent mistakes: training-data lag and frequency bias toward older Go idioms.
- Project-version detection is more precise than pasting one fixed “latest Go” prompt into repositories on different toolchain versions.
- Official JetBrains GoLand Team ownership and cross-agent packaging make the project more credible and portable than a demo-level prompt file.
- The source, feature inventory, wrapper scripts, and license are inspectable, so teams can pin and review exactly what the agent loads.
- It supplies guidance rather than enforcement; generated code can still be incorrect, incompatible, or inappropriate for a project’s style.
- The helper targets Go 1.25+, so older local installations rely on automatic toolchain switching and may download a newer toolchain on first use.
- Release metadata is inconsistent: plugin manifests and the changelog say 1.1.1, while the newest Git tag is v0.1.1 and GitHub has no formal releases.
- Independent production evidence is sparse, and current GitHub attention is too recent to establish long-term maintenance or productivity gains.
Detailed Use Cases for Modern Go Guidelines
Let the helper read go.mod and give the coding agent only the language and standard-library guidance available to that project version.
Install the maintained package in Junie, Claude Code, Codex, Cursor, OpenCode, or another skills.sh-compatible client instead of duplicating prompt fragments.
Use the catalog to steer agents toward modern slices, comparison, error-handling, iteration, and standard-library patterns when the project supports them.
Keep the skill alongside tests, go vet, modernize, staticcheck, benchmarks, and code review so attractive rewrites still face project-owned verification.
Who Should Use Modern Go Guidelines?
Go developers using Junie, Claude Code, Codex, Cursor, OpenCode, or another Agent Skills-compatible coding agent
Teams maintaining repositories across several Go versions that need version-scoped guidance instead of one global prompt
Engineering leads trying to reduce review churn from outdated language and standard-library patterns in agent-generated code
Tooling maintainers comparing open agent skills with go vet, modernize, staticcheck, gopls, and repository-specific instructions
Perfect For
Help Claude Code, Codex, Cursor, Junie, or OpenCode generate idiomatic code that matches a repository’s declared Go version.
Reduce manual review churn caused by agents emitting pre-generics loops, verbose nil checks, or superseded standard-library patterns.
Give mixed-version Go monorepos and services a repeatable way to scope modern-language advice to each module’s go.mod.
Audit or extend the open guideline catalog alongside go vet, staticcheck, modernize, tests, benchmarks, and project-specific conventions.
Technical Details
Direct Competitors
project-specific AGENTS.md or CLAUDE.md rules
Go modernize analyzer
staticcheck
gopls
Agent Skills
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Do one more comparison before you commit to Modern Go Guidelines
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