agentmods.dev

go-patterns

go-patterns is a skill for Claude Code, Codex from notque/vexjoy-agent. It costs 19 tokens per session (1,924 once invoked), scanned A, original, MIT.

A Go development guide covering coding style, testing, concurrent programs, error handling, code review, and project conventions. Go is a programming language often used for services and command-line tools.

In plain words
What is it for?
Use it when writing, changing, debugging, testing, or reviewing Go code, including work involving concurrent tasks and failure handling.
Why use it?
It gives an agent consistent rules for producing and reviewing Go code, reducing style differences and common mistakes.

Skill for Claude CodeCodex

not rated 420 +3 changed today A scan 19 tokens original MIT
View the source file notque/vexjoy-agent
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/notque/vexjoy-agent/go-patterns
Any agent
npx skills add notque/vexjoy-agent --skill go-patterns
Clone the repo
git clone --depth 1 https://github.com/notque/vexjoy-agent

Made for: Claude Code, Codex.

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-patterns

README.md
[![agentmods](https://agentmods.dev/badge/skills/notque/vexjoy-agent/go-patterns.svg)](https://agentmods.dev/skills/notque/vexjoy-agent/go-patterns)
Your own site
<a href="https://agentmods.dev/skills/notque/vexjoy-agent/go-patterns"><img src="https://agentmods.dev/badge/skills/notque/vexjoy-agent/go-patterns.svg" alt="Measured on agentmods" height="20"></a>
Per session 19 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,924 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original 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 $0.00019 $0.01924
Opus 5 $0.00010 $0.00962
Sonnet 5 $0.00004 $0.00385
Haiku 4.5 $0.00002 $0.00192

Measured today against content hash 2a8034839463, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

go-patterns 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 today.

The scan reads SKILL.md. This mod also ships 6 executable files (scripts/bench-compare.sh, scripts/check-errors.sh, scripts/check-interface-compliance.sh, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/engineering/go-patterns/SKILL.md · 183 lines

How it starts

The opening of the file, as written. The whole thing — 183 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Go Patterns Skill

Umbrella skill for Go development: Google style, testing, concurrency, error handling, failure modes, code review, SAP CC conventions, and quality gates. Load the references relevant to the task.

Google Style Precedence

Use this precedence when guidance differs:

  1. The target repository's explicit rules and required compatibility constraints.
  2. The Google Go Style Guide's canonical rules.
  3. Google Go Style Decisions' normative guidance.
  4. Google Go Style Best Practices' non-canonical recommendations.
  5. Task-specific references below.

Prefer local consistency only where the Google guide allows judgment. Do not create unrelated churn merely to restyle existing code. For new and nearby changed code, follow the current pinned guidance. Record a conscious exception when repository rules, generated-code constraints, or compatibility requirements require one.

Reference Loading Table

Signal Load These Files Why
Google-specific style decisions Relevant sections under google-style-guide/ Check the pinned conventions needed for the task
Testing testing.md Writing, fixing, or reviewing Go tests
Concurrency concurrency.md Goroutines, channels, sync primitives, race conditions
Error handling error-handling.md Error wrapping, sentinels, custom types, errors.Is/As
Review patterns preferred-patterns.md Detecting code smells, over-engineering, bad Go patterns
Code review code-review.md Reviewing Go code or PRs for quality
SAP CC conventions sapcc-conventions.md Working in sapcc/* repos with go-bits
Quality gate quality-gate.md Running make check, linting, pre-commit validation

Instructions

Step 1: Identify the Go Domain

Classify the task into one or more domains, then load the corresponding reference files. Only load what is needed -- do not load all references for every task.

Domain Load Reference When
Testing references/testing.md Writing, fixing, or reviewing Go tests
Concurrency references/concurrency.md Goroutines, channels, sync primitives, race conditions
Error handling references/error-handling.md Error wrapping, sentinels, custom types, errors.Is/As
Review patterns references/preferred-patterns.md Detecting code smells, over-engineering, bad Go patterns
Code review references/code-review.md Reviewing Go code or PRs for quality
SAP CC conventions references/sapcc-conventions.md Working in sapcc/* repos with go-bits
Quality gate references/quality-gate.md Running make check, linting, pre-commit validation

Read the full file on GitHub · 183 lines

Files

What ships with it

60 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.

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. today Changed · -15 lines 2a8034839463
  2. yesterday First seen · 198 lines · 19 tokens per session scan A e87429f9a675

Subscribe to this mod's changes

go-patterns is a skill published in the GitHub repository notque/vexjoy-agent (420 stars, last pushed today), licensed MIT. It adds 19 tokens to every session and 1,924 once invoked, about $0.0001 per session on Opus 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 2026-09-03.

GoLanguagesTestingaiai-agentsai-pipelinesai-skillsclaudeclaude-code
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