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plugin-dev

v1.1.0

Best practices, guidelines, and validation tools for Claude Code plugin development

CodexClaude Code3 Skills

By Passion FactoryLicense: MIT15 GitHub starsUpdated 2 hours ago

Directory evidence

Runtimes
Codex and Claude Code
Parsed components
3 skill or MCP entries
Source updated
Sep 24, 2026
Manifest status
Canonical path parsed

The directory validates manifest shape and source location. It does not execute the plugin or provide a security endorsement. Review the indexing methodology →

Install plugin-dev for Codex and Claude Code

Installs for the current user
codex plugin marketplace add pleaseai/claude-code-plugins
codex plugin marketplace upgrade pleaseai
codex plugin add plugin-dev@pleaseai

Paste and run these commands in a terminal with Codex. They add and refresh the pleaseai catalog, then install this plugin.

Compatibility: the page URL and API slug “plugin-dev-4” remain stable.

  • Codex: plugin-dev-4@agent-plugin-marketplace → plugin-dev@pleaseai

The installer fetches third-party code from the source repository shown on this page. This directory validates manifest structure and source location, but does not perform a security audit; review the manifest, components, and source before installing.

Get the source manually
git clone https://github.com/pleaseai/claude-code-plugins

Clone the source repository, then follow its setup instructions to add the plugin to a compatible client. The plugin root is plugins/plugin-dev/.

Plugin files

plugins/plugin-dev/
├── .codex-plugin/plugin.json
├── .claude-plugin/plugin.json
├── skills/migrating-gemini-extensions/SKILL.md
├── skills/plugin-authoring/SKILL.md
└── skills/validating-plugins/SKILL.md

Included Skills3

migrating-gemini-extensionsskills/migrating-gemini-extensions/SKILL.md

Convert a Gemini CLI extension into a Claude Code plugin, preserving functionality and backwards compatibility. Use when the user wants to migrate/port a Gemini extension to Claude Code, convert gemini-extension.json to plugin.json, adapt GEMINI.md context or Gemini tools/hooks, or mentions "gemini-extension.json", "GEMINI.md", or "migrate Gemini".

plugin-authoringskills/plugin-authoring/SKILL.md

Author, scaffold, or edit a plugin once in Claude Code format, then generate the Codex, Antigravity, and Cursor manifests so one directory loads in all four runtimes. Use when creating/scaffolding a new plugin, editing a plugin or its manifest, wiring a marketplace entry, running the multi-format generator, or when the user mentions "plugin.json", ".claude-plugin", ".codex-plugin", ".cursor-plugin", "multi-format", "marketplace.json", "scaffold a plugin", or "Codex/Cursor/Antigravity plugin".

validating-pluginsskills/validating-plugins/SKILL.md

Thoroughly validate a Claude Code plugin's manifest, directory structure, commands, agents, skills, hooks, and MCP config, then report issues by severity. Use when the user asks to validate, check, audit, or lint a plugin, verify a plugin.json or plugin structure, debug why a plugin won't load, or mentions "plugin validate", "invalid manifest", or "plugin not loading".

Plugin manifests2

plugins/plugin-dev/.codex-plugin/plugin.json
{
  "name": "plugin-dev",
  "version": "1.1.0",
  "description": "Best practices, guidelines, and validation tools for Claude Code plugin development",
  "author": {
    "name": "Passion Factory",
    "url": "https://github.com/pleaseai"
  },
  "interface": {
    "displayName": "Plugin Dev",
    "shortDescription": "Best practices, guidelines, and validation tools for Claude Code plugin development",
    "longDescription": "Best practices, guidelines, and validation tools for Claude Code plugin development",
    "developerName": "Passion Factory",
    "category": "Tooling",
    "capabilities": [
      "Skill"
    ],
    "defaultPrompt": [
      "Help me use Plugin Dev for my current task."
    ],
    "websiteURL": "https://github.com/pleaseai/claude-code-plugins/tree/main/plugins/plugin-dev"
  },
  "homepage": "https://github.com/pleaseai/claude-code-plugins/tree/main/plugins/plugin-dev",
  "repository": "https://github.com/pleaseai/claude-code-plugins",
  "license": "MIT",
  "keywords": [
    "plugin",
    "development",
    "best-practices",
    "validation",
    "guidelines",
    "scaffold"
  ],
  "skills": "./skills/"
}
plugins/plugin-dev/.claude-plugin/plugin.json
{
  "$schema": "https://json.schemastore.org/claude-code-plugin-manifest.json",
  "name": "plugin-dev",
  "version": "1.1.0",
  "description": "Best practices, guidelines, and validation tools for Claude Code plugin development",
  "author": {
    "name": "Passion Factory",
    "email": "[email protected]",
    "url": "https://github.com/pleaseai"
  },
  "homepage": "https://github.com/pleaseai/claude-code-plugins/tree/main/plugins/plugin-dev",
  "repository": "https://github.com/pleaseai/claude-code-plugins",
  "license": "MIT",
  "keywords": [
    "plugin",
    "development",
    "best-practices",
    "validation",
    "guidelines",
    "scaffold"
  ],
  "skills": [
    "./skills/"
  ]
}

For maintainers

If you maintain this plugin, link to this source-backed listing from your README so users can review its manifest and indexed components.

[plugin-dev on Agent Plugins Marketplace](https://pluginsmp.com/plugins/plugin-dev-4)