coding-skills

coding-skills is a plugin for Claude Code from JordanCoin/codingskills. Its manifest loads nothing; the 9 skills it bundles cost 590 tokens per session together, scanned A, original, MIT.

A collection of nine language-independent coding-principle guides for AI agents, including keeping code simple, avoiding duplication, and separating responsibilities.

In plain words
What is it for?
Use it to guide code decisions with principles such as KISS, DRY, SOLID, YAGNI, and convention over configuration.
Why use it?
It gives agents shared rules for making code easier to change and for detecting the project's technology stack before working.

Plugin for Claude Code

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.

Claude Code
/plugin marketplace add JordanCoin/codingskills
agentmods
npx agentmods add plugins/jordancoin/codingskills/coding-skills
Clone the repo
git clone --depth 1 https://github.com/JordanCoin/codingskills

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 coding-skills

README.md
[![agentmods](https://agentmods.dev/badge/plugins/jordancoin/codingskills/coding-skills.svg)](https://agentmods.dev/plugins/jordancoin/codingskills/coding-skills)
Your own site
<a href="https://agentmods.dev/plugins/jordancoin/codingskills/coding-skills"><img src="https://agentmods.dev/badge/plugins/jordancoin/codingskills/coding-skills.svg" alt="Measured on agentmods" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured The manifest loads nothing itself; its 9 skills cost 590 tokens a session between them.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

coding-skills 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 yesterday.

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.

.claude-plugin/marketplace.json#coding-skills · 17 lines

What it actually says

{
  "name": "coding-skills",
  "description": "9 foundational coding principle skills for AI agents: KISS, DRY, SOLID, YAGNI, Separation of Concerns, Law of Demeter, Boy Scout Rule, Convention over Configuration, plus stack detection. Language-agnostic principles that help agents ship production-quality code.",
  "source": "./",
  "strict": false,
  "skills": [
    "./skills/kiss",
    "./skills/dry",
    "./skills/yagni",
    "./skills/solid",
    "./skills/separation-of-concerns",
    "./skills/law-of-demeter",
    "./skills/boy-scout-rule",
    "./skills/convention-over-configuration",
    "./skills/detect-stack"
  ]
}
Contents

What it installs

The manifest is a name and a version. 9 skills travel with it, and installing the plugin installs all of them — 590 tokens a session between them. Each is measured on its own page, and each can be installed alone.

Files

What ships with it

1 file beside marketplace.json#coding-skills 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. yesterday First seen · 17 lines scan A c67e218cee3c

Subscribe to this mod's changes

coding-skills is a plugin published in the GitHub repository JordanCoin/codingskills (7 stars, last pushed 6mo ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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.

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