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ogcode: Skill for Claude Code

.agents/skills/golang-concurrency/SKILL.md

golang-concurrency is a skill for Claude Code from prasenjeet-symon/ogcode. It costs 180 tokens per session (2,303 once invoked), scanned A, original, AGPL-3.0.

A guide to concurrent programming in Go, where multiple tasks run at the same time using goroutines, channels, locks, and related tools.

In plain words
What is it for?
Use it to design or review channels, mutexes, atomics, worker pools, cancellation groups, single-flight work, and fan-out or fan-in pipelines.
Why use it?
It helps prevent goroutine leaks, unsafe shared data, deadlocks, and poorly coordinated work.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: installed under .agents/ (shared by several agents).

This is prasenjeet-symon/ogcode's own configuration. It tells Claude Code how to work on ogcode 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 ogcode configures →

not rated 147repo +2 yesterday A scan 180 tokens AGPL-3.0
View source ↗ prasenjeet-symon/ogcode ogcode.in
Reuse

Borrowing it

Nothing to install: this file belongs to prasenjeet-symon/ogcode. 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/prasenjeet-symon/ogcode/main/.agents/skills/golang-concurrency/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/prasenjeet-symon/ogcode

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 golang-concurrency

README.md
[![agentmods](https://agentmods.dev/badge/skills/prasenjeet-symon/ogcode/golang-concurrency/github.svg)](https://agentmods.dev/skills/prasenjeet-symon/ogcode/golang-concurrency)
Your own site
<a href="https://agentmods.dev/skills/prasenjeet-symon/ogcode/golang-concurrency"><img src="https://agentmods.dev/badge/skills/prasenjeet-symon/ogcode/golang-concurrency/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 golang-concurrency

Your own site · 80×15
<a href="https://agentmods.dev/skills/prasenjeet-symon/ogcode/golang-concurrency"><img src="https://agentmods.dev/badge/skills/prasenjeet-symon/ogcode/golang-concurrency.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 180 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,303 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00180 $0.02303
Opus 5.5 $0.00072 $0.00921
Sonnet 5.5 $0.00036 $0.00461
Haiku 4.5 $0.00018 $0.00230

Measured 16d ago against content hash b56255b765a5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

golang-concurrency 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 16d 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.

curl http://localhost:6060/debug/pprof/goroutineleak?debug=2
.agents/skills/golang-concurrency/SKILL.md · 155 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Files

What ships with it

4 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. 16d ago First seen · 155 lines · 180 tokens per session scan A b56255b765a5

Subscribe to this mod's changes

golang-concurrency is a skill published in the GitHub repository prasenjeet-symon/ogcode (147 stars, last pushed yesterday), licensed AGPL-3.0. It adds 180 tokens to every session and 2,303 once invoked, about $0.0007 per session on Opus 5.5. 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 2026-10-21.

Code GenerationGoLLMLanguagesai-agentcoding-assistantdeveloper-toolsgo
Related

golang-concurrency compared with skills from other repositories

golang-concurrency next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
golang-concurrencyprasenjeet-symon/ogcodeSkill147yesterdayAGPL-3.0A180Claude Code
go-expertpersonamanagmentlayer/pclSkill4411d agoApache-2.0A65Claude Code
go-code-reviewcxuu/golang-skillsSkill1904mo agoApache-2.0A56Claude Code
go-concurrencycxuu/golang-skillsSkill1904mo agoApache-2.0A62Claude Code
go-defensivecxuu/golang-skillsSkill1904mo agoApache-2.0A76Claude Code
go-namingcxuu/golang-skillsSkill1904mo agoApache-2.0A71Claude Code
go-control-flowcxuu/golang-skillsSkill1904mo agoApache-2.0A81Claude Code