What is a Claude Code plugin?

A Claude Code plugin is a specialized package containing skills, commands, and configurations that enhance Claude's ability to perform domain-specific tasks and follow best practices.

How do I ensure my plugin is discoverable?

Effective discoverability depends on using kebab-case naming, providing a clear description in plugin.json, and correctly registering the source in your marketplace.json file.

How do I handle versioning for my Claude plugins?

Plugins should follow Semantic Versioning (SemVer), where patch updates are for fixes, minor updates for new features, and major updates for breaking changes.

Can I test my custom plugin locally before publishing?

Yes, you can install plugins locally using the /plugin install command with a relative path to your local marketplace directory to verify behavior and command invocation.

What is the recommended format for SKILL.md?

The Plugin Builder recommends a progressive disclosure format, starting with purpose and prerequisites, followed by step-by-step instructions, concrete examples, and common troubleshooting tips.

Claude Plugin Builder

Name: Claude Plugin Builder
Author: joel611

byjoel611

開発者ツール

Standardizes the creation and management of Claude Code plugins with structured guidance on metadata, skills, and marketplace registration.

概要

The Claude Plugin Builder skill provides a comprehensive framework for developers to design, build, and publish custom extensions for Claude Code. It guides users through the entire lifecycle of plugin development—from initial directory scaffolding and JSON metadata creation to drafting structured SKILL.md files and registering components in a marketplace. By enforcing best practices like semantic versioning and progressive disclosure in documentation, this skill ensures that every plugin created is maintainable, discoverable, and highly effective at enhancing Claude's functional capabilities.

主な機能

Automated generation of schema-compliant plugin.json metadata
Step-by-step plugin directory scaffolding and structure setup
Guidance for implementing custom slash commands and agent definitions
0 GitHub stars
Standardized SKILL.md templates based on progressive disclosure patterns
Marketplace registration workflows and local validation checklists

ユースケース

Standardizing documentation and metadata for community-contributed tools
Building a new Claude Code plugin from scratch to automate specific dev workflows
Adding complex skills or custom slash commands to an existing plugin library

概要

主な機能

Automated generation of schema-compliant plugin.json metadata
Step-by-step plugin directory scaffolding and structure setup
Guidance for implementing custom slash commands and agent definitions
0 GitHub stars
Standardized SKILL.md templates based on progressive disclosure patterns
Marketplace registration workflows and local validation checklists

ユースケース

Standardizing documentation and metadata for community-contributed tools
Building a new Claude Code plugin from scratch to automate specific dev workflows
Adding complex skills or custom slash commands to an existing plugin library