Does it support conditional compilation?

Absolutely. It covers using the flag? macro to compile different code paths based on target platform, environment variables, or custom feature flags.

Can I use it to automate serialization?

Yes, one of its primary use cases is generating methods for JSON, YAML, or database serialization based on class instance variables at compile time.

Can this skill help build a custom DSL?

Yes, it provides patterns for using macro methods and blocks to build expressive, domain-specific languages within your Crystal applications.

What are Crystal macros used for?

Crystal macros are used for metaprogramming—writing code that generates more code at compile time. This is ideal for reducing boilerplate, creating DSLs, and performing compile-time checks.

How does it handle AST manipulation?

The skill provides guidance on receiving AST nodes as arguments, inspecting their types, and transforming them into valid Crystal code before the final binary is built.

Crystal Macros Metaprogramming

Name: Crystal Macros Metaprogramming
Author: TheBushidoCollective

byTheBushidoCollective

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Developer Tools

Implements advanced compile-time metaprogramming in Crystal for automated code generation and custom DSL creation.

The Crystal Macros skill empowers Claude Code to master the Crystal language's powerful compile-time execution system. It provides comprehensive patterns for building domain-specific languages (DSLs), reducing boilerplate through automated method generation, and performing complex Abstract Syntax Tree (AST) manipulations. By leveraging this skill, developers can implement type-safe abstractions, compile-time validations, and sophisticated introspection tools that execute during the compilation phase, resulting in more performant and maintainable codebases.

Key Features

01Compile-time code generation and boilerplate reduction

02Domain-Specific Language (DSL) design and implementation

0339 GitHub stars

04Type-safe abstractions and compile-time validations

05Abstract Syntax Tree (AST) manipulation and introspection

06Conditional compilation based on platform and feature flags

Use Cases

01Automating JSON serialization and database mapping boilerplate

02Creating expressive routing or configuration DSLs for web frameworks

03Generating repetitive property accessors and method delegations

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add thebushidocollective/han crystal-macros

For use in Claude.ai and ChatGPT

Download Skill