Split oversized Lua engine files using a register-pattern refactor.
npx skills add https://github.com/WayneWalterBerry/MMO --skill engine-code-review
Please help me install this Agent Skill. Skill: engine-code-review Source: https://github.com/WayneWalterBerry/MMO/tree/main/.squad/skills/engine-code-review Command: npx skills add https://github.com/WayneWalterBerry/MMO --skill engine-code-review
Senior engineer code review of engine Lua files to identify runaway monoliths, propose splits, surface test gaps, and drive a TDD-first refactor without regressing behavior.
Review the engine codebase to identify runaway files, run a pre-refactor test baseline, and apply a register-pattern split that preserves behavior.
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To refactor monolithic Lua files without regressions, establish a baseline test suite first, then apply a register-pattern split using a thin loader and category modules to preserve behavior while improving editability.
You should split oversized Lua engine files when a module exceeds roughly 500 lines, when multiple agents edit the same file concurrently, or before adding a major feature to improve testability and LLM editability.
Identify natural boundaries for splitting large Lua codebases by performing a size audit to find files over 500 lines, then analyzing dependency and module-structure relationships to surface logical category separations.
Refactoring Lua engine modules with a register pattern improves testability by isolating functionality into category modules and shared helpers, enabling safer, more modular edits and easier verification against baseline tests.
The best way to prepare a Lua engine codebase for a major feature addition is to run a pre-refactor baseline test validation, assess risks, and split monolithic files into modular components to ensure safer edits.
Editing a large Lua engine file causes issues with multiple agents because monolithic modules over 500 lines create merge conflicts and edit collisions, making it difficult to apply changes safely without splitting the file.
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