Index Lua (.lua): functions, methods (table `t.f`/`t:m` defs become methods with a `t::f` receiver), local variables, `require` imports, and call edges.
Vendor the upstream ABI-15 tree-sitter Lua grammar — the tree-sitter-wasms build is ABI 13 and corrupts the shared WASM heap under web-tree-sitter 0.25, dropping nested calls/imports after the first file in a project.
Harden the add-lang skill from this run: add check-grammar.mjs (flags ABI/heap corruption up front), document the DEFAULT_CONFIG.include edit and grammar health-check in SKILL.md, and add Lua repos to the eval corpus.
Colby McHenry
4ffe9229a7