How do I add a new plugin using this skill?

You can simply tell Claude to 'add the plugin to the marketplace' and the skill will extract metadata from the plugin folder, update the extended catalog, and run the sync script.

What is the two-catalog system managed by this skill?

It manages a source-of-truth file (marketplace.extended.json) containing full metadata and a generated file (marketplace.json) used by the CLI, ensuring only sanitized data reaches the end user.

Does it handle version bumping?

Yes, the skill can update version numbers across both individual plugin configuration files and the centralized marketplace catalogs simultaneously.

Can it detect errors in my marketplace configuration?

Yes, it automatically performs integrity checks for duplicate names, invalid JSON syntax, non-existent source paths, and non-semantic versioning.

Marketplace Manager

Name: Marketplace Manager
Author: jeremylongshore

byjeremylongshore

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883

Developer Tools

Automates the management of Claude Code plugin catalogs by synchronizing metadata and ensuring integrity across multi-file marketplace systems.

About

The Marketplace Manager skill is a specialized utility designed for maintainers managing the claude-code-plugins ecosystem. It streamlines the complex 'two-catalog' workflow by treating marketplace.extended.json as the single source of truth and automatically generating sanitized, CLI-compatible marketplace.json files. By automating validation checks for semantic versioning, duplicate entries, and file paths, it ensures that plugin distribution remains consistent and error-free while handling the technical overhead of repository-wide metadata updates.

Key Features

883 GitHub stars
Automated synchronization between extended metadata and production CLI catalogs
Categorization and featured plugin management for optimized discovery
Smart version management that syncs plugin files with marketplace entries
Integrated git workflow automation for committing catalog updates
Rigorous integrity validation for semantic versions, unique naming, and source paths

Use Cases

Adding new plugins to the repository with automated metadata registration
Auditing marketplace integrity to find missing files or duplicate plugin entries
Synchronizing extended field metadata into sanitized production JSON formats

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add jeremylongshore/claude-code-plugins-plus-skills marketplace-manager

For use in Claude.ai and ChatGPT

Download Skill

GitHub