gridcraft
GridCraft
Overview
GridCraft is an open-source, clean-room reimplementation of Microsoft Excel's workflow, written in pure
Rust by the ArtCraft team; the source lives at github.com/storytold/gridcraft (README.md). XLSX is the
native format, and an engine-first architecture makes every ribbon button, menu item, dialog, keystroke
and mouse gesture a command that agents can run over a JSON control channel, an MCP server, or the
headless CLI (README.md §"For agents"; AGENTS.md). Maturity is alpha: the core workflow (open
XLSX → edit/format → sort/filter → chart/pivot → print to PDF → save XLSX) works end to end, but the
project's own assessment is ~50% "ready for real work" (ROADMAP.md headline numbers). It runs on macOS
11+, Windows, Linux, BSD and the browser via WebAssembly; this skill was written against release
v0.8.0, the exact commit (823c5658) shipped in the installed app bundle.