unity-asmdef

To reduce Unity compile times, create assembly definitions to isolate code into distinct modules. By segmenting your project, modifying one module only recompiles that specific assembly instead of the entire codebase.

The best way to separate editor and runtime code is by creating assembly definitions for each domain. This enforces module boundaries, ensuring editor-specific scripts remain isolated from runtime logic and improving maintainability.

To avoid circular dependencies with Unity asmdef files, enforce directional references between assemblies. Plan your module boundaries carefully and apply incremental migration to ensure code flows strictly from runtime to editor or test assemblies.

Yes, you can incrementally add assembly definitions to a large Unity project. Migration guidance allows you to segment existing code modules gradually, applying assembly-level isolation to prevent widespread build failures during the transition.

You need to use assembly definitions in Unity when experiencing slow builds or managing large projects with multiple domains. They isolate code into distinct assemblies to enforce modular boundaries and significantly reduce compile times.

The main limitation when migrating large projects to Unity assembly definitions is the risk of creating circular dependencies. It requires careful planning of dependency direction and incremental adoption to safely separate mixed editor and runtime code.