plugin-dev

Claude Code Plugin Marketplace

A collection of plugins, commands, skills, agents, and hooks for Claude Code - extending Claude's capabilities for development workflows.

Quick Start

Add this marketplace to your Claude Code installation:

/plugin marketplace add shawn-sandy/claude-code

Then install any plugin:

/plugin install starter-plugin@claude-code-marketplace

Local Development

For local testing or development, you can add this marketplace from your filesystem:

# Add marketplace from local directory
/plugin marketplace add /path/to/claude-code

# Or use a relative path
/plugin marketplace add ./path/to/claude-code

# Then install plugins
/plugin install starter-plugin@claude-code-marketplace

This is useful when:

• Testing new plugins before publishing
• Developing plugins locally
• Using private/internal plugins not on GitHub

Git Hooks

This repository uses Husky git hooks for automated validation. The hooks run automatically and require no npm/node setup:

Validation Hooks:

• pre-commit - Validates JSON, shell scripts, and YAML frontmatter
• commit-msg - Enforces conventional commit format (<type>: <description>)
• pre-push - Runs OpenSpec validation and security checks
• prepare-commit-msg - Provides helpful commit message template

The hooks use system tools (jq, bash, openspec) without additional dependencies.

Commit Message Format:

# Required format
<type>: <description>
<type>(<scope>): <description>

# Examples
docs: update README with installation steps
feat(plugins): add new testing plugin
fix: resolve JSON validation issue

For troubleshooting and bypassing hooks, see CONTRIBUTING.md.

Available Plugins

starter-plugin

A comprehensive example plugin demonstrating all Claude Code component types with detailed documentation and best practices.

Components:

• Commands: Example slash command (/example) with frontmatter configuration
• Skills: Autonomous skill that explains skill development
• Agents: Specialized agent for learning about agent structure
• Hooks: Event-driven automation examples (PreToolUse, PostToolUse, SessionStart)
• MCP: Configuration templates for Model Context Protocol servers

Install:

/plugin install starter-plugin@claude-code-marketplace

Usage Examples:

# Try the example command
/example Hello from the marketplace!

# Skills are automatically triggered by Claude based on context
# Try asking: "Show me how to create a skill"

# Agents are launched via the Task tool
# Try asking: "Use the example-agent to explain agents"

plugin-dev

Plugin development toolkit with interactive skills for creating, scaffolding, and managing Claude Code plugins.

Components:

• Skills:
  • plugin-setup - Interactive plugin scaffolding with comprehensive validation

Install:

/plugin install plugin-dev@claude-code-marketplace

Usage Examples:

# The plugin-setup skill triggers automatically when you say:
"Create a new plugin"
"Setup a plugin"
"Add a skill to my plugin"
"Create a command"

# The skill will guide you through:
# 1. Gathering plugin requirements
# 2. Creating proper directory structure
# 3. Generating component templates
# 4. Updating marketplace catalog
# 5. Running comprehensive validation
# 6. Providing local testing instructions

Plugin Components Explained

Commands (Slash Commands)

User-invoked actions that start with /. Perfect for:

• Running tests or builds
• Creating git commits
• Custom workflows
• Deployment operations

Structure: commands/command-name.md with YAML frontmatter

Skills

Autonomously triggered capabilities that enhance Claude's abilities. Perfect for:

• Code analysis and formatting
• Documentation generation
• Pattern detection
• Specialized knowledge

Structure: skills/skill-name/SKILL.md with YAML frontmatter

Best Practice: Complex skills should include README.md for user documentation separate from the system prompt. See templates/skill-readme-template.md for template.

Agents

Specialized subagents for complex, domain-specific tasks. Perfect for:

• Code reviews
• Security audits
• Research and analysis
• Multi-step workflows

Structure: agents/agent-name.md with YAML frontmatter

Hooks

Event-driven automation that responds to tool usage and session events. Perfect for:

• Validation and safety checks
• Logging and monitoring
• Enforcing best practices
• Custom workflows

Structure: hooks/hooks.json with hook configurations

MCP Servers

Model Context Protocol integrations for external services. Perfect for:

• API integrations
• Database access
• External tool integration
• Custom protocols

Structure: .mcp.json with server configurations

Management Commands

Marketplace Commands