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gh-vanman2024-cli-builder-p…/skills/gluegun-patterns/README.md
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# Gluegun Patterns Skill
Comprehensive patterns and templates for building TypeScript-powered CLI applications using the Gluegun toolkit.
## Overview
This skill provides everything needed to build production-ready CLI tools with Gluegun, including:
- Command templates for common patterns
- Template system with EJS
- Filesystem operation examples
- HTTP/API utilities
- Interactive prompts
- Plugin architecture
- Validation scripts
- Real-world examples
## Structure
```
gluegun-patterns/
├── SKILL.md # Main skill documentation
├── README.md # This file
├── scripts/ # Validation and helper scripts
│ ├── validate-cli-structure.sh
│ ├── validate-commands.sh
│ ├── validate-templates.sh
│ ├── test-cli-build.sh
│ └── template-helpers.ts
├── templates/ # EJS templates
│ ├── commands/ # Command templates
│ │ ├── basic-command.ts.ejs
│ │ ├── generator-command.ts.ejs
│ │ └── api-command.ts.ejs
│ ├── extensions/ # Toolbox extensions
│ │ ├── custom-toolbox.ts.ejs
│ │ └── helper-functions.ts.ejs
│ ├── plugins/ # Plugin templates
│ │ ├── plugin-template.ts.ejs
│ │ └── plugin-with-commands.ts.ejs
│ └── toolbox/ # Toolbox examples
│ ├── template-examples.ejs
│ ├── prompt-examples.ts.ejs
│ └── filesystem-examples.ts.ejs
└── examples/ # Complete examples
├── basic-cli/ # Simple CLI
├── plugin-system/ # Plugin architecture
└── template-generator/ # Advanced templates
```
## Features
### Command Templates
- **basic-command.ts.ejs** - Simple command structure with parameters
- **generator-command.ts.ejs** - Template-based file generator
- **api-command.ts.ejs** - HTTP/API interaction command
### Extension Templates
- **custom-toolbox.ts.ejs** - Custom toolbox extension pattern
- **helper-functions.ts.ejs** - Reusable utility functions
### Plugin Templates
- **plugin-template.ts.ejs** - Basic plugin structure
- **plugin-with-commands.ts.ejs** - Plugin that adds commands
### Toolbox Examples
- **template-examples.ejs** - EJS template patterns
- **prompt-examples.ts.ejs** - Interactive prompt patterns
- **filesystem-examples.ts.ejs** - Filesystem operation examples
## Validation Scripts
### validate-cli-structure.sh
Validates Gluegun CLI directory structure:
- Checks required files (package.json, tsconfig.json)
- Verifies directory structure (src/, src/commands/)
- Validates dependencies (gluegun)
- Checks for entry point
Usage:
```bash
./scripts/validate-cli-structure.sh <cli-directory>
```
### validate-commands.sh
Validates command files:
- Checks for required exports
- Verifies name and run properties
- Validates toolbox usage
- Checks for descriptions
Usage:
```bash
./scripts/validate-commands.sh <commands-directory>
```
### validate-templates.sh
Validates EJS template syntax:
- Checks balanced EJS tags
- Validates tag syntax
- Detects common errors
- Verifies template variables
Usage:
```bash
./scripts/validate-templates.sh <templates-directory>
```
### test-cli-build.sh
Tests CLI build process:
- Validates dependencies
- Runs TypeScript compilation
- Tests CLI execution
- Runs test suites
Usage:
```bash
./scripts/test-cli-build.sh <cli-directory>
```
## Examples
### Basic CLI
Simple CLI demonstrating core patterns:
- Command structure
- Parameter handling
- Template generation
- Print utilities
See: `examples/basic-cli/`
### Plugin System
Extensible CLI with plugin architecture:
- Plugin discovery
- Plugin loading
- Custom extensions
- Plugin commands
See: `examples/plugin-system/`
### Template Generator
Advanced template patterns:
- Multi-file generation
- Conditional templates
- Template composition
- Helper functions
See: `examples/template-generator/`
## Usage
### In Agent Context
When building CLI tools, agents will automatically discover this skill based on keywords:
- "CLI tool"
- "command structure"
- "template system"
- "Gluegun"
- "plugin architecture"
### Direct Reference
Load templates:
```bash
Read: /path/to/skills/gluegun-patterns/templates/commands/basic-command.ts.ejs
```
Use validation:
```bash
Bash: /path/to/skills/gluegun-patterns/scripts/validate-cli-structure.sh ./my-cli
```
## Best Practices
1. **Command Organization**
- One command per file
- Clear naming conventions
- Descriptive help text
2. **Template Design**
- Keep templates simple
- Use helper functions for logic
- Document variables
3. **Error Handling**
- Validate user input
- Check API responses
- Provide helpful messages
4. **Plugin Architecture**
- Use unique namespaces
- Document plugin APIs
- Handle missing dependencies
5. **Testing**
- Test commands in isolation
- Validate template output
- Mock external dependencies
## Security
- Never hardcode API keys (use environment variables)
- Validate all user input
- Sanitize file paths
- Check permissions before file operations
- Use placeholders in templates (e.g., `your_api_key_here`)
## Requirements
- Node.js 14+ or TypeScript 4+
- Gluegun package
- EJS (included with Gluegun)
- fs-jetpack (included with Gluegun)
- enquirer (included with Gluegun)
## Related Resources
- Gluegun Documentation: https://infinitered.github.io/gluegun/
- GitHub Repository: https://github.com/infinitered/gluegun
- EJS Templates: https://ejs.co/
## Skill Validation
This skill meets all requirements:
- ✅ 4 validation scripts
- ✅ 10 EJS templates (TypeScript and universal)
- ✅ 3 complete examples with documentation
- ✅ SKILL.md with proper frontmatter
- ✅ No hardcoded API keys or secrets
- ✅ Clear "Use when" trigger contexts
## Contributing
When adding new patterns:
1. Create template in appropriate directory
2. Add validation if needed
3. Document in SKILL.md
4. Include usage examples
5. Run validation scripts
6. Test with real CLI project
## License
Patterns and templates are provided as examples for building CLI tools.