How do I test my new plugin locally?

You can test locally by installing from a relative path using 'claude plugin add ./path' or 'copilot plugin install ./path' and running the platform's validation commands.

Does this skill write the code for my agents or MCP servers?

No, this skill focuses on the structural scaffolding and manifest configuration. You should use specialized skills for authoring the internal logic of those specific components.

What is a plugin marketplace?

A marketplace is a central repository containing a marketplace.json file that allows users to discover, browse, and install multiple curated plugins from a single source.

What is the difference between a skill and a plugin?

A skill is a specific capability or instruction set, while a plugin is a packaged container that can hold multiple skills, agents, hooks, and configuration files for distribution.

Can I use this to create plugins for both GitHub Copilot and Claude?

Yes, this skill is designed to create dual-platform compatible plugins that work with both Copilot CLI and Claude Code using shared or specific manifests.

Plugin Creator

Name: Plugin Creator
Author: AndyElessar

byAndyElessar

0•

Developer Tools

Guides the creation, configuration, and distribution of plugins and marketplaces for GitHub Copilot CLI and Claude Code.

This skill streamlines the development of extensions for AI coding interfaces by providing standardized templates and guidance for plugin manifests, directory structures, and marketplace registries. It handles the structural complexities of both GitHub Copilot CLI and Claude Code, enabling developers to package agents, skills, and MCP servers into installable plugins with dual-platform compatibility. By focusing on scaffolding and configuration rather than component logic, it ensures manifests like plugin.json and marketplace.json are correctly formatted for seamless distribution, loading, and cross-platform support.

Key Features

01Automates marketplace registry creation and plugin distribution workflows

02Scaffolds dual-platform plugin directory structures for Copilot CLI and Claude Code

030 GitHub stars

04Generates and validates plugin.json and marketplace.json manifest files

05Facilitates the packaging of agents, skills, hooks, and MCP servers

06Provides troubleshooting for plugin installation, caching, and loading issues

Use Cases

01Building a private team marketplace for shared AI agents and custom skills

02Configuring dual-platform manifests to support both Copilot CLI and Claude Code users from a single repository

03Packaging a local Model Context Protocol (MCP) server into an installable Claude Code plugin

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add andyelessar/skills plugin-creator

For use in Claude.ai and ChatGPT