lua-toolkit

name: lua-toolkit description: Neovim Lua plugin development playbooks — project architecture, self lazy-loading, vim.g configuration, scoped commands and keymaps, health checks, type-safe tooling, busted testing, and LuaRocks distribution. Use when writing or refactoring a Neovim Lua plugin, designing vim.g/setup config, deciding command/keymap APIs, adding checkhealth, configuring lua-ls/luacheck/stylua/LuaCATS, or setting up busted/nlua tests and SemVer LuaRocks releases.

Lua Toolkit

Authoring and refactoring Neovim Lua plugins targeting LuaJIT/Lua 5.1. Conventions are LuaRocks-first, type-safe, self-lazy-loading, no forced setup(). Neovim-plugin specific; for general embedded Lua, only the tooling and runtime guardrails transfer.

Routing (progressive disclosure)

Route to one mode and load only that reference unless work crosses boundaries. If intent is unclear, ask first.

1. plugin-architecture.md — runtimepath directory model, plugin/ vs lua/ separation, deferred-require loading, no-runtime-entrypoint plugins, util.lua refactoring, global-pollution rules, if jit then ... else fallback.
2. configuration.md — vim.g.<plugin> (table-or-function) config not forced setup(), partial LuaCATS config classes, dict-vs-list vim.tbl_deep_extend behavior, modern vim.validate (0.11+) signature, lua/<plugin>/health.lua checks.
3. loading-and-install.md — self-lazy-loading via plugin/+ftplugin/ (don't rely on the plugin manager), minimal lazy.nvim specs, native-API-over-plenary, lazy = true deps, coroutine build constraints.
4. apis-and-keymaps.md — single scoped command with complete, <Plug> mappings with no default keymaps, buffer-local state, ftplugin vs after/ftplugin.
5. tooling-and-quality.md — LuaCATS + lua-ls as primary correctness tool, .luarc.json ("Lua 5.1"), lua51 .luacheckrc, stylua baseline.
6. plenary-migration.md — replace plenary.job, plenary.path, plenary.scandir, plenary.async, plenary.curl, plenary.test_harness, popup/window helpers, strings, filetype, and logging with native Neovim APIs or focused dependencies.
7. testing-and-distribution.md — busted+nlua (neorocksTest for Nix), stable/nightly CI matrix, vimcats/panvimdoc generation, SemVer .rockspec/luarocks-tag-release.

Core Rules (apply in every mode)

Target Lua 5.1 / LuaJIT 2.1, avoid globals, self-lazy-load, prefer lazy vim.g.<plugin> config over forced setup(), expose one scoped command plus <Plug> mappings, and gate types with LuaCATS/lua-ls. Read core-rules.md when writing or reviewing plugin code.

Reference Implementations

Canonical real-world examples: nvim-best-practices, nvim-lua-nix-plugin-template (Nix CI), rustaceanvim, neotest-haskell.

Cross-Skill Boundaries

Read operating-rules.md for cross-skill boundaries, tooling posture, and reporting rules.

Reporting Rules

Show exact commands and paths. Label snippets executed, syntax checked, or template only.