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Cursor rules for Go

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submitted 14h ago by u/client to c/backend · 0 copies

A .cursor/rules/go.mdc for idiomatic errors, contexts, interfaces and tests.

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---
description: Go conventions
globs: ["**/*.go"]
alwaysApply: false
---

# Go

- Errors are values: return them, wrap with `%w`, and handle each one. No panics in library code.
- `context.Context` first argument for anything doing I/O; respect cancellation.
- Accept interfaces, return structs; define interfaces where they're used.
- Keep packages small and named for what they provide (no `utils`).
- Table-driven tests with `t.Run`; use `t.Helper()` in helpers.
- Run `go vet` and `golangci-lint run` before finishing.

## When you change code
- Follow the patterns in the nearest existing file before inventing new ones.
- Add or update a test for behavior changes; run `{{test_command}}`.
- Keep diffs small; explain anything surprising in your reply.

test_command

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Cursor rules for Go

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