How does this skill help with MoonBit project organization?

It defines clear boundaries between modules (moon.mod.json) and packages (moon.pkg.json), providing a template for organizing source files, tests, and command-line utilities correctly.

Can this skill help me avoid common MoonBit errors?

Yes, it enforces specific rules such as avoiding uppercase for variables, handling explicit mutability, managing error propagation, and using the correct Type:: prefix for methods.

Does it support automated testing workflows?

Absolutely. It provides detailed instructions for snapshot tests using inspect(), black-box testing, and ensuring docstring examples are automatically checked via 'moon test'.

How do I perform API discovery within MoonBit using this skill?

The skill prioritizes the 'moon doc' command for precise symbol lookup, enabling you to explore types, methods, and package exports more accurately than standard grep-based searches.

MoonBit Project Assistant

Name: MoonBit Project Assistant
Author: loro-dev

byloro-dev

•

5,315

Developer Tools

Guides the development, refactoring, and testing of MoonBit projects using standardized layouts and the moon toolchain.

About

This skill empowers Claude with specialized knowledge of the MoonBit programming language and its ecosystem. It provides comprehensive guidance on project architecture—distinguishing between modules and packages—while enforcing idiomatic coding patterns and modern testing workflows. From navigating the moon CLI to implementing snapshot tests and spec-driven development using #declaration_only, this skill ensures that developers can build highly optimized WebAssembly applications with clear structure, robust error handling, and maintainable public APIs.

Key Features

Expertise in moon CLI commands (build, check, info, doc, fmt)
Spec-driven development workflow support
Idiomatic coding rules and common pitfall prevention
Comprehensive testing patterns including snapshot and docstring tests
Standardized project layout and package management guidance
5,315 GitHub stars

Use Cases

Scaffolding new MoonBit projects with correct module and package structures
Refactoring monolithic packages into smaller, cohesive modules while maintaining API compatibility
Implementing automated snapshot testing and high-quality docstring examples

About

Key Features

Expertise in moon CLI commands (build, check, info, doc, fmt)
Spec-driven development workflow support
Idiomatic coding rules and common pitfall prevention
Comprehensive testing patterns including snapshot and docstring tests
Standardized project layout and package management guidance
5,315 GitHub stars

Use Cases

Scaffolding new MoonBit projects with correct module and package structures
Refactoring monolithic packages into smaller, cohesive modules while maintaining API compatibility
Implementing automated snapshot testing and high-quality docstring examples