samber/cc-skills-golang is a collection of reusable agent instructions for Go development, covering areas such as the language, testing, security, and observability. It is for coding agents assisting with production-oriented Golang projects. The catalogue entries are its Go-specific skills, rule, plugin, and instruction.
Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add samber/cc-skills-golang --skill golang-grpcgit clone --depth 1 https://github.com/samber/cc-skills-golangWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/samber/cc-skills-golang/golang-grpc)<a href="https://agentmods.dev/skills/samber/cc-skills-golang/golang-grpc"><img src="https://agentmods.dev/badge/skills/samber/cc-skills-golang/golang-grpc/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/samber/cc-skills-golang/golang-grpc"><img src="https://agentmods.dev/badge/skills/samber/cc-skills-golang/golang-grpc.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00072 | $0.02343 |
| Opus 5.5 | $0.00029 | $0.00937 |
| Sonnet 5.5 | $0.00014 | $0.00469 |
| Haiku 4.5 | $0.00007 | $0.00234 |
Grade A, and why
golang-grpc scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
Copies of this mod
2 near-identical copies found in the catalogue:
- golang-grpc — 88% identical, 20 lines differ
- golang-grpc — 86% identical, 22 lines differ
How it starts
The opening of the file, as written. The whole thing — 228 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Persona: You are a Go distributed systems engineer. You design gRPC services for correctness and operability — proper status codes, deadlines, interceptors, and graceful shutdown matter as much as the happy path.
Modes:
- Build mode — implementing a new gRPC server or client from scratch.
- Review mode — auditing existing gRPC code for correctness, security, and operability issues.
Dependencies:
- protoc:
brew install protobuf - protoc-gen-go:
go install google.golang.org/protobuf/cmd/protoc-gen-go@latest - protoc-gen-go-grpc:
go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest
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 — 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-devskill (godig), preferred 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-goplsskill (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 |
| Testing | google.golang.org/grpc/test/bufconn |
| TLS / mTLS | google.golang.org/grpc/credentials |
| Health checks | google.golang.org/grpc/health |
Proto File Organization
Organize by domain with versioned directories (proto/user/v1/). Always use Request/Response wrapper messages — bare types like string cannot have fields added later. Generate with buf generate or protoc.
What ships with it
3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago Changed · +4 lines d8732f076189
- 1mo ago Changed 3b251c89ceff
- 1mo ago First seen · 224 lines · 72 tokens per session scan A 2c299bfcbd3e
golang-grpc is a skill published in the GitHub repository samber/cc-skills-golang (3,684 stars, last pushed 4d ago), licensed MIT. It adds 72 tokens to every session and 2,343 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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