plugin-dev

plugin-dev is a plugin for Claude Code from rube-de/cc-skills. Its manifest loads nothing; the 2 skills, 2 commands it bundles cost 125 tokens per session together, scanned A, original, MIT.

A toolkit for creating and checking coding-agent plugins. It covers starting plugin projects, checking SKILL.md metadata, and finding hooks that fail without reporting errors.

In plain words
What is it for?
Use it to scaffold a plugin, validate its skill files, and inspect hooks for silent failures.
Why use it?
It reduces setup mistakes and helps catch plugin problems that could otherwise remain hidden.

Plugin for Claude Code

Written for Claude Code: a Claude Code plugin manifest.

Good fit Use it to scaffold a plugin, validate its skill files, and inspect hooks for silent failures.

Compare 6 plugins from other repositories ↓
Install in Claude Code
/plugin marketplace add rube-de/cc-skills
/plugin install plugin-dev
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.

Clone the repo
git clone --depth 1 https://github.com/rube-de/cc-skills

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 plugin-dev

README.md
[![agentmods](https://agentmods.dev/badge/plugins/rube-de/cc-skills/plugin-dev/github.svg)](https://agentmods.dev/plugins/rube-de/cc-skills/plugin-dev)
Your own site
<a href="https://agentmods.dev/plugins/rube-de/cc-skills/plugin-dev"><img src="https://agentmods.dev/badge/plugins/rube-de/cc-skills/plugin-dev/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 plugin-dev

Your own site · 80×15
<a href="https://agentmods.dev/plugins/rube-de/cc-skills/plugin-dev"><img src="https://agentmods.dev/badge/plugins/rube-de/cc-skills/plugin-dev.svg" alt="Reviewed on agentmods" width="80" 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 2 skills, 2 commands cost 125 tokens a session between them.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

plugin-dev 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 4d 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.

.claude-plugin/marketplace.json#plugin-dev · 17 lines

What it actually says

{
  "name": "plugin-dev",
  "description": "Plugin development tools: scaffold new plugins, validate SKILL.md frontmatter, audit hooks for silent failures",
  "version": "2.21.1",
  "source": "./plugins/plugin-dev",
  "category": "development",
  "author": {
    "name": "rube-de",
    "url": "https://github.com/rube-de"
  },
  "keywords": [
    "plugin-development",
    "scaffolding",
    "validation",
    "skill-authoring"
  ]
}
Contents

What it installs

The manifest is a name and a version. 2 skills, 2 commands travel with it, and installing the plugin installs all of them — 125 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#plugin-dev 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. 4d ago Changed 9fee8fbbdf93
  2. 10d ago Changed 8c6f70cfa714
  3. 13d ago Changed 75fea4fa4b76
  4. 14d ago Changed 824882b9cda1
  5. 15d ago Changed 7c46cbbfddf6
  6. 17d ago Changed 2aa0b61396ec
  7. 27d ago Changed 60a22d5a17db
  8. 1mo ago Changed 0d94cc39d53b
  9. 1mo ago First seen · 17 lines scan A 785d58546e23

Subscribe to this mod's changes

plugin-dev is a plugin published in the GitHub repository rube-de/cc-skills (10 stars, last pushed 4d 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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