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@carlo-finance/tax-engine

v0.1.41

Published

Tax calculation engine for personal financial planning

Downloads

4,519

Readme

@carlo-finance/tax-engine

Tax calculation engine for personal financial planning.

Built with Effect — a TypeScript framework for composable, type-safe programs.

Status

Pre-release. Do not depend on this package yet.

How it's shaped

ARCHITECTURE.md — the three-layer chain (model → accounting → engine), the engine's internal subsystem map, the public API contract, and pointers into the specs.

docs/MODULE-AUTHORING.md — the recipe for adding a rule module with metadata, parameter bindings, diagnostics, provenance, tests, fixtures, ADRs, and changesets.

Install

pnpm add @carlo-finance/tax-engine

Develop

pnpm install
pnpm test          # vitest, watch mode
pnpm check         # typecheck (no emit)
pnpm lint          # eslint
pnpm build         # ESM + CJS to ./dist

Run a TypeScript file directly via tsx:

pnpm tsx ./path/to/file.ts

Releasing

Versioning and publishing are managed by Changesets.

  1. After a code change, run pnpm changeset and answer the prompts to record a changelog entry + bump type.
  2. Commit the generated .changeset/*.md file alongside your change.
  3. Merging to main triggers .github/workflows/release.yml, which either opens a "Version Packages" PR or — once that PR is merged — publishes to npm.

License

MIT