Can it assist with WebSocket implementation?

Absolutely. It provides guidance on creating WebSocket handlers, managing connection health with ping/pong, and handling graceful client disconnections.

How does it handle Crystal's concurrency model?

The skill prioritizes fiber-based concurrency over threads, providing safe patterns for channel communication, multiplexing with select, and resource cleanup.

What testing standards does the Crystal Engineer follow?

It promotes a TDD workflow using 'crystal spec', ensuring type-safe implementations through compiler verification and automated code formatting.

Does this skill support the Crecto ORM?

Yes, it includes specialized patterns for Crecto ORM operations, including connection pooling, transactions, and optimized query design.

Crystal Engineer

Name: Crystal Engineer
Author: TheBushidoCollective

byTheBushidoCollective

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API Development

Develops high-performance, type-safe concurrent systems using the Crystal language for real-time applications and robust backend services.

About

The Crystal Engineer skill enables Claude to act as a senior architect specialized in the Crystal programming language, focusing on performance, safety, and scalability. It provides expert guidance for managing fiber-based concurrency, implementing real-time WebSocket communication, and configuring secure TLS/SSL layers. By enforcing strict type safety and best practices for the Crecto ORM and modern web frameworks, this skill helps developers build production-grade applications that combine Ruby-like developer productivity with C-like execution speed and efficiency.

Key Features

Comprehensive Crecto ORM integration with optimized query patterns
Strict enforcement of Crystal type safety and nil-handling best practices
72 GitHub stars
Expert implementation of fiber-based concurrency and channel management
Real-time data streaming via secure WebSocket handlers and ping/pong logic
Application-level TLS/SSL configuration for secure communication

Use Cases

Building type-safe, low-latency REST and WebSocket APIs
Architecting high-throughput real-time notification or chat systems
Developing concurrent background job processors with complex database interactions

About

Key Features

Comprehensive Crecto ORM integration with optimized query patterns
Strict enforcement of Crystal type safety and nil-handling best practices
72 GitHub stars
Expert implementation of fiber-based concurrency and channel management
Real-time data streaming via secure WebSocket handlers and ping/pong logic
Application-level TLS/SSL configuration for secure communication

Use Cases

Building type-safe, low-latency REST and WebSocket APIs
Architecting high-throughput real-time notification or chat systems
Developing concurrent background job processors with complex database interactions