install-skill

What this skill does

# Skill Installer

Automates the installation of new skills into the skills marketplace project. Handles unpacking, marketplace registration, and documentation updates.

## When to Use

- User has a `.skill` file in `dist/` directory
- User asks to "install", "add", "unpack", or "integrate" a skill
- User wants to add a new skill to the marketplace

## Installation Workflow

### Phase 1: Discovery

1. **List available skill packages**:
   ```bash
   ls -la dist/*.skill
   ```

2. **Identify target skill**: If user specifies a skill name, use it. Otherwise, list available packages and ask which to install.

3. **Verify package**: Check the file exists and is a valid zip archive:
   ```bash
   file dist/<skill-name>.skill
   ```

### Phase 2: Extraction

1. **Preview contents** before extracting:
   ```bash
   unzip -l dist/<skill-name>.skill
   ```

2. **Extract to project root**:
   ```bash
   unzip -o dist/<skill-name>.skill
   ```

3. **Verify extraction**:
   ```bash
   ls -la <skill-name>/
   ls -la <skill-name>/references/
   ```

### Phase 3: Metadata Extraction

1. **Read SKILL.md frontmatter** to extract:
   - `name`: Skill identifier (kebab-case)
   - `description`: Full description for triggers
   - `metadata.category`: Category (seo, music, security, tooling, etc.)
   - `metadata.tags`: Comma-separated tags

2. **Parse the frontmatter** between `---` markers at the top of SKILL.md

3. **Generate short description** for marketplace (one line, ~60 chars max)

### Phase 4: Marketplace Registration

1. **Update `.claude-plugin/marketplace.json`**:

   a. Update the top-level `description` if needed to include new category

   b. Add to `plugins` array:
   ```json
   {
     "name": "<skill-name>",
     "type": "skill",
     "path": "<skill-name>",
     "description": "<short-description>",
     "category": "<category>",
     "tags": ["tag1", "tag2", ...]
   }
   ```

   c. Add category to `categories` object if new:
   ```json
   "<category>": {
     "name": "<Category Display Name>",
     "description": "<Category description>",
     "marketplace": "marketplace-<category>.json"
   }
   ```

2. **Create/update category marketplace** (`marketplace-<category>.json`):

   If file doesn't exist, create with template:
   ```json
   {
     "name": "skills-<category>",
     "version": "1.0.0",
     "description": "<Category> skills for Claude Code.",
     "author": "schwepps",
     "license": "MIT",
     "repository": {
       "type": "git",
       "url": "https://github.com/schwepps/skills.git"
     },
     "plugins": [
       { /* skill entry */ }
     ]
   }
   ```

   If file exists, add skill to `plugins` array.

### Phase 5: Documentation Update

1. **Update README.md**:

   a. Update header description if new category added

   b. Add to "What's Included" table:
   ```markdown
   | **[<skill-name>](<skill-name>/)** | <short-description> |
   ```

   c. Add usage examples section if new category:
   ```markdown
   ### <Category>
   ```
   "Example prompt 1"
   "Example prompt 2"
   ```
   ```

   d. Add to "Project Structure" tree:
   ```
   ├── <skill-name>/
   ```

   e. Add to "Browser Download" table:
   ```markdown
   | <Skill Display Name> | [Download ZIP](https://download-directory.github.io/?url=https://github.com/schwepps/skills/tree/main/<skill-name>) |
   ```

### Phase 6: Verification

1. **Verify all files updated**:
   - [ ] Skill directory exists with SKILL.md and references/
   - [ ] marketplace.json contains skill entry
   - [ ] Category marketplace file exists and contains skill
   - [ ] README.md updated with skill info

2. **Report summary**:
   ```
   Installed: <skill-name>
   Category: <category>
   Files: <count> reference files

   Updated:
   - .claude-plugin/marketplace.json
   - .claude-plugin/marketplace-<category>.json
   - README.md
   ```

## Category Mappings

| Category | Display Name | Description |
|----------|--------------|-------------|
| seo | SEO & AI Search | Search engine optimization and AI search visibility |
| music | Music Creation | AI-powered music and audio generation |
| security | Smart Contract Security | Blockchain and smart contract auditing |
| tooling | Developer Tools | Automation and development utilities |

## Error Handling

- **File not found**: List available .skill files in dist/
- **Invalid package**: Check if file is valid zip archive
- **Missing SKILL.md**: Package is malformed, cannot install
- **Missing frontmatter**: Extract what's possible, ask user for missing metadata
- **Category conflict**: Ask user to confirm category assignment

## Quick Install Command

For a straightforward installation with a known skill file:

```
/install-skill <skill-name>
```

This will:
1. Unpack `dist/<skill-name>.skill`
2. Auto-detect metadata from SKILL.md
3. Register in all marketplace files
4. Update README.md
5. Report completion status