golang-grpc

Provides gRPC usage guidelines, protobuf organization, and production-ready patterns for Golang microservices. Use when implementing, reviewing, or debugging gRPC servers/clients, writing proto files, setting up interceptors, handling gRPC errors with status codes, configuring TLS/mTLS, testing with bufconn, or working with streaming RPCs.

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Repository: samber/cc-skills-golang
Last source activity: July 6, 2026 at 15:14
Detected SKILL.md language: English
Stars: 2,997
Forks: 196

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golang-lint

Linting best practices and golangci-lint configuration for Golang projects — running linters, configuring .golangci.yml, suppressing warnings with nolint directives, interpreting lint output, and selecting linters. Use when configuring golangci-lint, asking about lint warnings or nolint suppressions, setting up code quality tooling, or choosing linters. Also use when the user mentions golangci-lint, go vet, staticcheck, or revive.

2026-08-13

golang-how-to

Golang skills orchestrator — always active on any Golang coding, review, debug, or setup task. Reads the task context and loads the most relevant skills from samber/cc-skills-golang, often multiple at once: writing a gRPC service loads golang-grpc + golang-testing + golang-error-handling; debugging a panic loads golang-troubleshooting + golang-safety; auditing security loads golang-security + golang-lint + golang-safety. Also: disambiguates competing clusters when two skills seem to overlap (performance vs benchmark vs troubleshooting, samber/lo vs mo vs ro, DI cluster, safety vs security), and configures CLAUDE.md or AGENTS.md to force-trigger skills in a project (/golang-how-to configure).

2026-07-27

golang-project-layout

Provides a guide for setting up Golang project layouts and workspaces. Use when starting a new Go project, organizing an existing codebase, setting up a monorepo with multiple packages, creating CLI tools with multiple main packages, deciding between cmd/internal/pkg directory conventions, or discussing package restructuring, package splits, or module splits.

2026-07-27

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Go gRPC Best Practices

Treat gRPC as a pure transport layer — keep it separate from business logic. The official Go implementation is google.golang.org/grpc.

This skill is not exhaustive. Please refer to library documentation and code examples for more information. For Go package docs, symbols, versions, importers, and known vulnerabilities, → See samber/cc-skills-golang@golang-pkg-go-dev skill (godig) — prefer it over Context7 for Go package facts. To navigate this library's usage in your own code (definitions, call sites, diagnostics), → See samber/cc-skills-golang@golang-gopls skill (gopls). Context7 remains a fallback for docs not indexed on pkg.go.dev.

Quick Reference

Concern

Package / Tool

Service definition

protoc or buf with .proto files

Code generation

protoc-gen-go, protoc-gen-go-grpc

Error handling

google.golang.org/grpc/status with codes

Rich error details

google.golang.org/genproto/googleapis/rpc/errdetails

Interceptors

grpc.ChainUnaryInterceptor, grpc.ChainStreamInterceptor

Middleware ecosystem

github.com/grpc-ecosystem/go-grpc-middleware

Go gRPC Best Practices

Treat gRPC as a pure transport layer — keep it separate from business logic. The official Go implementation is google.golang.org/grpc.

Quick Reference

Concern

Package / Tool

Service definition

protoc or buf with .proto files

Code generation

protoc-gen-go, protoc-gen-go-grpc

Error handling

google.golang.org/grpc/status with codes

Rich error details

google.golang.org/genproto/googleapis/rpc/errdetails

Interceptors

grpc.ChainUnaryInterceptor, grpc.ChainStreamInterceptor

Middleware ecosystem

github.com/grpc-ecosystem/go-grpc-middleware

name	golang-grpc
description	Provides gRPC usage guidelines, protobuf organization, and production-ready patterns for Golang microservices. Use when implementing, reviewing, or debugging gRPC servers/clients, writing proto files, setting up interceptors, handling gRPC errors with status codes, configuring TLS/mTLS, testing with bufconn, or working with streaming RPCs.
user-invocable	true
license	MIT
compatibility	Designed for Claude Code or similar AI coding agents, and for projects using Golang.
metadata	{"author":"samber","version":"1.1.7","openclaw":{"emoji":"🌐","homepage":"https://github.com/samber/cc-skills-golang","requires":{"bins":["go","protoc"]},"install":[{"kind":"brew","formula":"protobuf","bins":["protoc"]}]}}
allowed-tools	Read Edit Write Glob Grep Bash(go:) Bash(golangci-lint:) Bash(git:) Agent WebFetch mcp__context7__resolve-library-id mcp__context7__query-docs Bash(protoc:) AskUserQuestion Bash(godig:) Bash(gopls:) LSP mcp__gopls__*

name	golang-grpc
description	Provides gRPC usage guidelines, protobuf organization, and production-ready patterns for Golang microservices. Use when implementing, reviewing, or debugging gRPC servers/clients, writing proto files, setting up interceptors, handling gRPC errors with status codes, configuring TLS/mTLS, testing with bufconn, or working with streaming RPCs.
user-invocable	true
license	MIT
compatibility	Designed for Claude Code or similar AI coding agents, and for projects using Golang.
metadata	{"author":"samber","version":"1.1.7","openclaw":{"emoji":"🌐","homepage":"https://github.com/samber/cc-skills-golang","requires":{"bins":["go","protoc"]},"install":[{"kind":"brew","formula":"protobuf","bins":["protoc"]}]}}
allowed-tools	Read Edit Write Glob Grep Bash(go:) Bash(golangci-lint:) Bash(git:) Agent WebFetch mcp__context7__resolve-library-id mcp__context7__query-docs Bash(protoc:) AskUserQuestion Bash(godig:) Bash(gopls:) LSP mcp__gopls__*

Code	When to Use
`InvalidArgument`	Malformed input (missing field, bad format)
`NotFound`	Entity does not exist
`AlreadyExists`	Create failed, entity exists
`PermissionDenied`	Caller lacks permission
`Unauthenticated`	Missing or invalid token
`FailedPrecondition`	System not in required state
`ResourceExhausted`	Rate limit or quota exceeded
`Unavailable`	Transient issue, safe to retry
`Internal`	Unexpected bug
`DeadlineExceeded`	Timeout

Pattern	Use Case
Server streaming	Server sends a sequence (log tailing, result sets)
Client streaming	Client sends a sequence, server responds once (file upload, batch)
Bidirectional	Both send independently (chat, real-time sync)

Setting	Purpose	Typical Value
`keepalive.ServerParameters.Time`	Ping interval for idle connections	30s
`keepalive.ServerParameters.Timeout`	Ping ack timeout	10s
`grpc.MaxRecvMsgSize`	Override 4 MB default for large payloads	16 MB
Connection pooling	Multiple conns for high-load streaming	4 connections

golang-grpc

Install options

Review the source files

Go gRPC Best Practices

Quick Reference

Go gRPC Best Practices

Quick Reference

Proto File Organization

Server Implementation

Interceptor Pattern

Client Implementation

Error Handling

Streaming

Testing

Security

Performance

Common Mistakes

Cross-References

Mistake	Fix
Returning raw `error`	Becomes `codes.Unknown` — client can't decide whether to retry. Use `status.Errorf` with a specific code
No deadline on client calls	Slow upstream hangs indefinitely. Always `context.WithTimeout`
New connection per request	Wastes TCP/TLS handshakes. Create once, reuse — HTTP/2 multiplexes RPCs
Reflection enabled in production	Lets attackers enumerate every method. Enable only in dev/staging
`codes.Internal` for all errors	Wrong codes break client retry logic. `Unavailable` triggers retry; `InvalidArgument` does not
Bare types as RPC arguments	Can't add fields to `string`. Wrapper messages allow backwards-compatible evolution
Missing health check service	Kubernetes can't determine readiness, kills pods during deployments
Ignoring context cancellation	Long operations continue after caller gave up. Check `ctx.Err()`

golang-grpc

Source facts

Install options

Review the source files

More from this repository

More from this repository

Go gRPC Best Practices

Quick Reference

Go gRPC Best Practices

Quick Reference

Proto File Organization

Server Implementation

Interceptor Pattern

Client Implementation

Error Handling

Streaming

Testing

Security

Performance

Common Mistakes

Cross-References