The script host now runs on benilla-lua alone. The vendored C Lua 5.1.5 (`third_party/lua-src`) and mlua are removed, about 17k lines. `vm_parity` checks benilla-lua against the answers the C build recorded on Linux and macOS, and `front_end` checks every corpus chunk's compiled shape against the C build's digest. `GRAMMAR.md` records each grammar change from 5.1, by client address.
A handler's `this`, `event` and `arg1`… are bound in one VM call. An event fire saves and restores `event`, while the handler runner saves only `this` (`0x704d50`).
Ours on the branch: VM fixes from review (hook dispatch counts, registers and frames around a collection, protected-call handlers, library errors) and `vm_parity`'s two-VM leftovers removed.
Tests: the full gate chain on the merged tree, `vm_parity` and `front_end` among them. Live: smoke and a stock-glue login. Load time is level with C Lua, and memory is within 7%.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Co-Authored-By: Sam <samuv.eth@gmail.com>
Mathih13
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