go

go is a skill for Claude Code, Codex from spf13/go-skills. It costs 113 tokens per session (6,632 once invoked), scanned A, original, no licence file.

An expert guide to idiomatic Go, meaning code that follows common Go conventions. It covers package design, error handling, interfaces, concurrency, testing, and project layout, including current Go 1.25 practices.

In plain words
What is it for?
Use it whenever Go code is written, reviewed, debugged, or refactored.
Why use it?
It helps produce Go code that is easier to read, test, and maintain.

Skill for Claude CodeCodex

Part of the go plugin — 1 skill shipped together

Install

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.

agentmods
npx agentmods add skills/spf13/go-skills/go
Any agent
npx skills add spf13/go-skills --skill go
Clone the repo
git clone --depth 1 https://github.com/spf13/go-skills

Made for: Claude Code, Codex.

Or install go, the plugin that ships this one along with the rest of its 1 skill.

Wrote 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.

agentmods badge for go

README.md
[![agentmods](https://agentmods.dev/badge/skills/spf13/go-skills/go.svg)](https://agentmods.dev/skills/spf13/go-skills/go)
Your own site
<a href="https://agentmods.dev/skills/spf13/go-skills/go"><img src="https://agentmods.dev/badge/skills/spf13/go-skills/go.svg" alt="Measured on agentmods" height="20"></a>
Per session 113 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,632 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
Origin unknown No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00113 $0.06632
Opus 5 $0.00056 $0.03316
Sonnet 5 $0.00023 $0.01326
Haiku 4.5 $0.00011 $0.00663

Measured 5d ago against content hash dbe226cf78b6, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

go scanned grade A with 1 finding 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 5d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

return fetch(ctx, url)
go/SKILL.md · 775 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

1 file 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.

Changes

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.

  1. 5d ago First seen · 775 lines · 113 tokens per session scan A dbe226cf78b6

Subscribe to this mod's changes

go is a skill published in the GitHub repository spf13/go-skills (632 stars, last pushed 1mo ago), with no licence file. It adds 113 tokens to every session and 6,632 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Related

Other skills, from other repositories

golang-testing

Go testing best practices including table-driven tests, test helpers, benchmarking, race detection, coverage analysis, and integration testing patterns. Use when writing or improving Go tests.

affaan-m/ECC · 37 tokens

golang-patterns

Go-specific design patterns and best practices including functional options, small interfaces, dependency injection, concurrency patterns, error handling, and package organization. Use when working with Go code to apply idiomatic Go patterns.

affaan-m/ECC · 45 tokens

ast-grep

Guide for writing ast-grep rules to perform structural code search and analysis. Use when users need to search codebases using Abstract Syntax Tree (AST) patterns, find specific code structures, or perform complex code queries that go beyond simple text search. This skill should be used when users ask to search for…

JanDeDobbeleer/oh-my-posh · 80 tokens

gen-test

Generate idiomatic tests for Go packages and handlers in the Meshery project.

meshery/meshery · 18 tokens

golang-testing

Production-ready Golang tests — table-driven tests, testify suites and mocks, parallel tests, fuzzing, fixtures, goroutine leak detection with goleak, snapshot testing, code coverage, integration tests, idiomatic test naming. Use when writing or reviewing Go tests, choosing a testing approach, setting up Go test CI…

samber/cc-skills-golang · 115 tokens

golang-samber-oops

Structured error handling in Golang with samber/oops — error builders, stack traces, error codes, error context, error wrapping, error attributes, user-facing vs developer messages, panic recovery, and logger integration. Apply when using or adopting samber/oops, or when the codebase already imports…

samber/cc-skills-golang · 74 tokens