Formualizer (Meta Crate)

The formualizer crate is the curated entry point for the Formualizer spreadsheet ecosystem. It re-exports the components required to treat spreadsheets as typed, deterministic programs while letting advanced users opt into individual crates as needed.

Intent

• Provide a single dependency that mirrors the “batteries-included” surface exposed by the CLI and forthcoming Python/Wasm bindings.
• Keep the implementation modular. Internal crates such as formualizer-eval, formualizer-workbook, sheetport-spec, and formualizer-sheetport continue to evolve independently with focused responsibilities.
• Offer feature flags so downstream consumers can slim the dependency graph when they only need a subset of the stack.

Philosophy

1. Contracts first. Spreadsheets plus manifests behave like pure functions. The meta crate ensures those contracts are ergonomic to load, validate, and execute.
2. Deterministic by default. Every exported API favors predictable evaluation, idempotent changes, and auditable data flow.
3. Interoperable layers. The roll-up crate aims to be the stable façade for higher-level runtimes (agent orchestration, automation servers) without hiding the underlying building blocks.

Status

Phase 0/1 (SheetPort spec) is complete. Phase 2 work is in progress to bind manifests to real workbooks and surface runtime utilities. Expect the re-export surface to grow as the runtime stabilizes.