unity-csharp-editing

Symbol navigation searches your Unity codebase by looking up definitions and all references to classes, methods, and variables. Build an index of your scripts, then use find_symbol and find_refs operations to instantly locate where any symbol is defined or used across your project.

Structured edits apply refactoring changes with exact diffs, reducing risk of unintended modifications. The Skill supports edit_snippet for lightweight replacements and edit_structured for full-scale refactors, both backed by code indexing to ensure accuracy across your codebase.

Contract-first testing starts with test definitions before implementation. Initialize the code index, write tests as specifications, then use guided edit operations to implement methods and classes. The Skill maintains the index as you edit, keeping symbol references current for safe TDD cycles.

Initialize a code index by reading your Unity project's Assets and package directories. Index construction scans C# scripts and builds a compact 5x output reference table, enabling fast symbol lookup and read operations on your indexed codebase.

Index-based editing scales to multi-file projects across Assets and related packages. The compact index enables rapid navigation and editing across your entire codebase without re-parsing each time, making it suitable for ongoing refactoring and maintenance workflows.

Edit_snippet operations handle lightweight replacements—changes under 80 characters—with pinpoint accuracy. Combined with symbol navigation, snippet edits let you quickly fix references, rename fields, or update method calls without rewriting entire files.