unity-asmdef

Define Unity asmdef module boundaries and dependencies for cleaner builds.

Updated Mar 30, 2026
One-click install
npx skills add https://github.com/krl76/MP-Study-Projects --skill unity-asmdef-krl76
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: unity-asmdef
Source: https://github.com/krl76/MP-Study-Projects/tree/main/Practice1/.codex/skills/unity-skills/skills/asmdef
Command: npx skills add https://github.com/krl76/MP-Study-Projects --skill unity-asmdef-krl76

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Unity projects with growing codebases often suffer from slow compilation and tangled dependencies when modules are not clearly separated. This Skill provides guidance to introduce and manage asmdef files to create clean module boundaries, improving compile times and maintainability.

Core Features & Use Cases

  • Guidance on creating and organizing Unity Assembly Definition (asmdef) files.
  • Strategies for separating editor, runtime, and test code to optimize builds and dependencies.
  • Real-world use cases like large projects, multi-domain teams, and incremental compilation workflows.

Quick Start

Create your first asmdef to split runtime from editor code and begin refining dependencies.

Frequently Asked Questions about unity-asmdef

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I speed up Unity compile times for a large project?

To speed up Unity compile times, you can use Assembly Definition (asmdef) files to split your project into isolated modules, allowing incremental compilation and reducing build delays.

What is the best way to separate editor and runtime code in Unity?

The best way to separate editor and runtime code is by creating asmdef files to define distinct module boundaries, ensuring editor-only scripts are excluded from runtime builds.

When do I need to create assembly definitions in Unity?

You need to create Unity assembly definitions during project modularization, when scaling teams, or when clear dependency boundaries between different domains are required.

How do I migrate an existing Unity project to use asmdef without breaking builds?

To migrate an existing Unity project without breaking builds, introduce asmdef files incrementally, declare explicit dependencies for each module, and verify that compilation succeeds at each step.

How do I manage dependencies between multiple modules in Unity?

Managing Unity module dependencies involves declaring explicit references in each asmdef file, ensuring that modules only access allowed assemblies to maintain clear boundaries and prevent tangled code.

Does splitting code into assembly definitions work for multi-domain Unity teams?

Yes, using asmdef files works effectively for multi-domain Unity teams by establishing strict module boundaries, allowing different teams to work independently without causing compilation conflicts.