feat: Add distribution packages for Claude.ai and Claude Code

Create production-ready distribution packages for different Claude platforms.

## Distribution Packages

**For Claude.ai (Individual Skills)**:
- n8n-expression-syntax-v1.0.0.zip
- n8n-mcp-tools-expert-v1.0.0.zip
- n8n-workflow-patterns-v1.0.0.zip
- n8n-validation-expert-v1.0.0.zip
- n8n-node-configuration-v1.0.0.zip

Each skill packaged individually with files at root level (SKILL.md, reference
files, README.md). Complies with Claude.ai skill upload requirements: exactly
one SKILL.md per zip, files at root, YAML frontmatter included.

**For Claude Code (Bundle)**:
- n8n-mcp-skills-claude-code-v1.0.0.zip

Complete bundle with plugin.json, all 5 skills in skills/ folder, README, and
LICENSE. Ready for Claude Code plugin installation.

## Files Added

1. plugin.json - Claude Code plugin metadata (name, version, skills array)
2. dist/ folder with:
   - 5 individual skill zips (Claude.ai format)
   - 1 bundle zip (Claude Code format)
   - README.md (distribution guide)

## Zip Structure

**Individual Skills** (Claude.ai):
```
skill-name.zip
├── SKILL.md (with frontmatter)
├── [reference-files].md
└── README.md
```

**Bundle** (Claude Code):
```
bundle.zip
├── plugin.json
├── README.md
├── LICENSE
└── skills/
    ├── n8n-expression-syntax/
    ├── n8n-mcp-tools-expert/
    ├── n8n-workflow-patterns/
    ├── n8n-validation-expert/
    └── n8n-node-configuration/
```

## Usage

**Claude.ai**: Upload each skill zip separately via Settings → Features → Skills
**Claude Code**: Extract bundle and copy skills/ to ~/.claude/skills/

Total package sizes:
- Individual skills: 11KB - 36KB each
- Bundle: 102KB (all 5 skills + metadata)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
Conceived by Romuald Członkowski - https://www.aiadvisors.pl/en

dist/README.md

@@ -0,0 +1,134 @@
+# n8n-mcp Skills - Distribution Packages
+
+This folder contains distribution packages for different Claude platforms.
+
+## 📦 Available Packages
+
+### For Claude.ai Users (Individual Skills)
+
+Upload each skill separately via Settings → Features → Skills:
+
+- `n8n-expression-syntax-v1.0.0.zip` - n8n expression syntax and common patterns
+- `n8n-mcp-tools-expert-v1.0.0.zip` - Expert guide for using n8n-mcp tools (HIGHEST PRIORITY)
+- `n8n-workflow-patterns-v1.0.0.zip` - 5 proven workflow architectural patterns
+- `n8n-validation-expert-v1.0.0.zip` - Validation error interpretation and fixing
+- `n8n-node-configuration-v1.0.0.zip` - Operation-aware node configuration
+
+**Installation:**
+1. Go to Settings → Features → Skills
+2. Click "Upload Skill"
+3. Select one of the skill zip files above
+4. Repeat for each skill you want to install
+
+**Note:** Each skill can be installed independently. Install all 5 for the complete experience!
+
+### For Claude Code Users (Bundle)
+
+- `n8n-mcp-skills-claude-code-v1.0.0.zip` - Complete bundle with all 5 skills
+
+**Installation:**
+
+Option 1 - Manual Installation:
+```bash
+# 1. Download the bundle
+# 2. Extract the zip file
+unzip n8n-mcp-skills-claude-code-v1.0.0.zip
+
+# 3. Copy skills to your Claude Code skills directory
+cp -r skills/* ~/.claude/skills/
+
+# 4. Reload Claude Code
+```
+
+Option 2 - Plugin Installation (if supported):
+```bash
+# Install as a Claude Code plugin
+claude-code install n8n-mcp-skills-claude-code-v1.0.0.zip
+```
+
+## 🎯 Which Package Should I Use?
+
+| Platform | Package | Skills |
+|----------|---------|--------|
+| **Claude.ai** | Individual zips | Upload each skill separately (5 uploads) |
+| **Claude Code** | Bundle zip | Install all 5 skills at once |
+| **Claude API** | Bundle zip | Extract and use skills/ folder |
+
+## 📋 What's Included in Each Package
+
+### Individual Skill Packages (Claude.ai)
+
+Each zip contains:
+```
+SKILL.md              # Main skill instructions with YAML frontmatter
+[Reference files]     # Additional documentation and guides
+README.md             # Skill metadata and statistics
+```
+
+### Bundle Package (Claude Code)
+
+```
+plugin.json           # Claude Code plugin metadata
+README.md             # Project overview and documentation
+LICENSE               # MIT License
+skills/               # All 5 skills in subfolders
+  ├── n8n-expression-syntax/
+  ├── n8n-mcp-tools-expert/
+  ├── n8n-workflow-patterns/
+  ├── n8n-validation-expert/
+  └── n8n-node-configuration/
+```
+
+## ✅ Verification
+
+After installation, test skills by asking:
+
+```
+"How do I write n8n expressions?"
+→ Should activate: n8n Expression Syntax
+
+"Find me a Slack node"
+→ Should activate: n8n MCP Tools Expert
+
+"Build a webhook workflow"
+→ Should activate: n8n Workflow Patterns
+```
+
+## 🔧 Requirements
+
+- **n8n-mcp MCP server** installed and configured
+- **Claude Pro, Max, Team, or Enterprise** plan (for Claude.ai skills)
+- **.mcp.json** configured with n8n-mcp server
+
+## 📖 Documentation
+
+For detailed installation instructions, see:
+- Main README: `../README.md`
+- Installation Guide: `../docs/INSTALLATION.md`
+- Usage Guide: `../docs/USAGE.md`
+
+## 🐛 Troubleshooting
+
+**Claude.ai Error: "Zip must contain exactly one SKILL.md file"**
+- Use the individual skill zips, not the bundle
+- Each skill must be uploaded separately
+
+**Claude Code: Skills not activating**
+- Verify skills are in `~/.claude/skills/` directory
+- Check that n8n-mcp MCP server is running
+- Reload Claude Code
+
+**Skills not triggering**
+- Skills activate based on keywords in your queries
+- Try more specific questions matching skill descriptions
+- Check that SKILL.md files have correct frontmatter
+
+## 📝 License
+
+MIT License - see `../LICENSE` file
+
+## 🙏 Credits
+
+Conceived by Romuald Członkowski - https://www.aiadvisors.pl/en
+
+Part of the n8n-mcp project.

plugin.json

@@ -0,0 +1,29 @@
+{
+  "name": "n8n-mcp-skills",
+  "version": "1.0.0",
+  "description": "Expert skills for building n8n workflows with n8n-mcp",
+  "author": "Romuald Członkowski (https://www.aiadvisors.pl/en)",
+  "license": "MIT",
+  "skills": [
+    "skills/n8n-expression-syntax",
+    "skills/n8n-mcp-tools-expert",
+    "skills/n8n-workflow-patterns",
+    "skills/n8n-validation-expert",
+    "skills/n8n-node-configuration"
+  ],
+  "requires": {
+    "mcp_servers": ["n8n-mcp"]
+  },
+  "keywords": [
+    "n8n",
+    "workflow",
+    "automation",
+    "mcp",
+    "validation",
+    "expressions"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/czlonkowski/n8n-skills"
+  }
+}