Master programming languages for backend development. Learn language selection, fundamentals, and ecosystem for JavaScript, Python, Go, Java, C#, PHP, Ruby, and Rust.
View on GitHubpluginagentmarketplace/custom-plugin-backend
backend-development-assistant
January 20, 2026
Select agents to install to:
npx add-skill https://github.com/pluginagentmarketplace/custom-plugin-backend/blob/main/skills/languages/SKILL.md -a claude-code --skill languagesInstallation paths:
.claude/skills/languages/# Programming Languages Skill
**Bonded to:** `programming-fundamentals-agent`
---
## Quick Start
```bash
# Invoke languages skill
"Help me choose a programming language for my backend project"
"Set up Python development environment"
"Compare Go vs Rust for microservices"
```
---
## Instructions
1. **Assess Requirements**: Evaluate project needs (performance, scalability, team expertise)
2. **Compare Languages**: Use decision matrix below
3. **Select Language**: Choose based on requirements and constraints
4. **Set Up Environment**: Configure IDE, package manager, linters
5. **Master Ecosystem**: Learn frameworks, testing tools, deployment
---
## Language Comparison Matrix
| Language | Best For | Performance | Learning | Ecosystem |
|----------|----------|-------------|----------|-----------|
| JavaScript/Node.js | Real-time, Full-stack | Good | Easy | Excellent |
| Python | ML/AI, APIs, Scripting | Moderate | Easy | Excellent |
| Go | Microservices, Cloud | Excellent | Medium | Good |
| Java | Enterprise, Android | Good | Medium | Excellent |
| C# | Microsoft, Games | Good | Medium | Good |
| Rust | Systems, Performance | Excellent | Hard | Growing |
| PHP | Web, WordPress | Moderate | Easy | Good |
| Ruby | Web, Startups | Moderate | Easy | Good |
---
## Decision Tree
```
Project Requirements?
│
├─→ ML/AI/Data Science → Python
│
├─→ High Performance Required?
│ ├─→ Systems level → Rust
│ └─→ Cloud/Microservices → Go
│
├─→ Enterprise/Large Team → Java or C#
│
├─→ Rapid Prototyping → Python or Ruby
│
└─→ Full-stack/Real-time → JavaScript/Node.js
```
---
## Examples
### Example 1: Language Selection
```
Input: "I need to build a high-performance microservices API"
Output: Recommend Go or Rust
- Go: Simpler, faster development, excellent concurrency
- Rust: Maximum performance, memory safety, steeper learning curve
```
### Example 2: Environment Setup
```
Input: "Set up Python de