agentmods.dev

oc: Skill for Claude Code

.claude/skills/effective-go/SKILL.md

Effective Go is a skill for Claude Code from openshift/oc. It costs 44 tokens per session (294 once invoked), scanned A, a copy of Effective Go, Apache-2.0.

A set of guidelines for writing, reviewing, and refactoring Go programs. Go is a programming language, and the guidance covers formatting, naming, errors, concurrency, interfaces, and documentation.

In plain words
What is it for?
Use it when creating or changing Go code. It reminds you to run gofmt, check errors, keep interfaces small, use channels for shared work, and document exported code.
Why use it?
It gives Go code a consistent style and highlights common correctness and maintainability practices. This makes reviews and future changes easier to handle.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is openshift/oc's own configuration. It tells Claude Code how to work on oc itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything oc configures →

not rated 250repo yesterday A scan 44 tokens copy · 100% Apache-2.0
View source ↗ openshift/oc openshift.org
Reuse

Borrowing it

Nothing to install: this file belongs to openshift/oc. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/openshift/oc/main/.claude/skills/effective-go/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/openshift/oc

Made for: Claude Code.

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 Effective Go

README.md
[![agentmods](https://agentmods.dev/badge/skills/openshift/oc/effective-go/github.svg)](https://agentmods.dev/skills/openshift/oc/effective-go)
Your own site
<a href="https://agentmods.dev/skills/openshift/oc/effective-go"><img src="https://agentmods.dev/badge/skills/openshift/oc/effective-go/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.

agentmods 80×15 button for Effective Go

Your own site · 80×15
<a href="https://agentmods.dev/skills/openshift/oc/effective-go"><img src="https://agentmods.dev/badge/skills/openshift/oc/effective-go.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 294 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 100% copy Near-identical to another mod 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 5.1 $0.00044 $0.00294
Opus 5.5 $0.00018 $0.00118
Sonnet 5.5 $0.00009 $0.00059
Haiku 4.5 $0.00004 $0.00029

Measured 2mo ago against content hash face4c96317c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

Effective Go 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 2mo 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.

Origin

This is a copy

100% identical to Effective Go — 1 line differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/skills/effective-go/SKILL.md · 32 lines

What it actually says

Effective Go

Apply best practices and conventions from the official Effective Go guide to write clean, idiomatic Go code.

When to Apply

Use this skill automatically when:

  • Writing new Go code
  • Reviewing Go code
  • Refactoring existing Go implementations

Key Reminders

Follow the conventions and patterns documented at https://go.dev/doc/effective_go, with particular attention to:

  • Formatting: Always use gofmt - this is non-negotiable
  • Naming: No underscores, use MixedCaps for exported names, mixedCaps for unexported
  • Error handling: Always check errors; return them, don't panic
  • Concurrency: Share memory by communicating (use channels)
  • Interfaces: Keep small (1-3 methods ideal); accept interfaces, return concrete types
  • Documentation: Document all exported symbols, starting with the symbol name

References

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. 2mo ago First seen · 32 lines · 44 tokens per session scan A face4c96317c

Subscribe to this mod's changes

Effective Go is a skill published in the GitHub repository openshift/oc (250 stars, last pushed yesterday), licensed Apache-2.0. It adds 44 tokens to every session and 294 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to Effective Go, differing in 1 line, and is treated as a copy.

GoLanguages
Related

Effective Go compared with skills from other repositories

Effective Go next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
Effective Goopenshift/ocSkill250yesterdayApache-2.0A44Claude Code
golang-testingaffaan-m/ECCSkill299kyesterdayMITA37Claude Code, Kiro
golang-patternsaffaan-m/ECCSkill299kyesterdayMITA45Claude Code, Kiro
golang-testingsamber/cc-skills-golangSkill3.8k6d agoMITA115Claude Code
golang-uber-fxsamber/cc-skills-golangSkill3.8k6d agoMITA122Claude Code
golang-samber-oopssamber/cc-skills-golangSkill3.8k6d agoMITA74Claude Code
ax-go-agent-optimizeax-llm/axSkill3.0kyesterdayApache-2.0A51Claude Code, Codex