feature-engineering-toolkit

Claude Code Plugins

236 production-ready Claude Code plugins for automation, development, and AI workflows. ✅ NEW in v1.2.1: 100% Anthropic Spec v1.0 Compliant - All 164 Agent Skills updated to official format!

Latest: v1.2.1 Release - Anthropic Spec compliance, 164 skills updated

/plugin marketplace add jeremylongshore/claude-code-plugins
/plugin install devops-automation-pack@claude-code-plugins-plus

💖 Sponsor this project - Get early access, premium plugins, and priority support

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🆕 What's New in v1.2.1

✅ Anthropic Official Spec v1.0 Compliance

All 164 Agent Skills now comply with Anthropic's official Agent Skills Spec v1.0 released October 16, 2025.

What Changed:

• Name format updated: Title Case → hyphen-case (e.g., "Database Backup Automator" → "database-backup-automator")
• 100% spec compliant: All SKILL.md files follow official format requirements
• Forward compatible: Ensures compatibility with future Claude Code releases
• No breaking changes: Skills continue to work exactly as before

Quality Assessment: Our comprehensive comparison report shows our 165 skills exceed Anthropic's 17 official examples in documentation depth, trigger phrase specificity, and workflow detail.

Automated with:

• scripts/fix-skill-names.py - Batch conversion tool with validation
• 164 skills fixed, 1 already correct, 0 errors

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What's New in v1.2.0

🎯 Agent Skills Quality Enhancement

159 high-quality Agent Skills generated via production-grade AI batch processing with Vertex AI Gemini 2.0 Flash. Achieved 100% success rate at $0 cost with comprehensive documentation.

Key Achievements:

• 231 plugins enhanced (98% of marketplace)
• 100% success rate, zero failures
• $0 processing cost (Vertex AI free tier)
• 13 documentation files + 2 blog posts
• Agent Skills 17x larger than Anthropic's examples (3,210 bytes avg vs 500 bytes)

Technical Deep-Dives:

• 📖 Batch Processing Implementation
• 💼 Systems Architecture

🧠 How Agent Skills Work

Agent Skills are automatic capabilities that Claude activates based on your conversation context - no commands needed!

File Structure:

your-plugin/
└── skills/
    └── skill-adapter/
        └── SKILL.md       # Agent skill definition

SKILL.md Format (Spec v1.0 Compliant):

---
name: database-backup-automator
description: |
  Automatically handles database backup operations when user mentions
  backup, restore, or data protection needs.
---

## What This Skill Does
Multi-phase database backup workflow with validation...

## When It Activates
- "I need to backup my database"
- "How do I restore from backup?"
- "Set up automated backups"

How It Works in Practice:

1. You install a plugin:

   /plugin install postgres-backup-pro@claude-code-plugins-plus
   

2. You mention your need naturally:

   "I need to backup my production PostgreSQL database before the migration"

3. Claude automatically:

   • Detects the backup skill is relevant
   • Activates Database Backup Automator skill
   • Guides you through: connection → backup → verification → storage
   • No slash commands needed!

4. You get expert help:

   • Multi-phase workflows (analysis → execution → validation)
   • Code examples and error handling
   • Best practices built-in
   • Context-aware recommendations

Key Difference from Commands:

• Commands: You type /backup-database explicitly
• Skills: Claude recognizes "I need to backup" and helps automatically
• Result: More natural, conversational development workflow