Develop Neovim Plugins

Build or change a Neovim Lua plugin so that it loads lazily, registers each entry point once, edits the right buffer with correct undo, runs external work asynchronously without corrupting later edits, reports problems as notifications and health results, and is proven by a headless suite that fails on each known defect. Each card in the references gives the definition, Use when and Do not use when conditions, the cost it removes, verification, and a runnable example. Cards cite the Neovim v0.12.5 runtime/doc help; follow them instead of recalling API usage.

Workflow