What's built

Every capability below exists because a spec was written for it first, implemented against that spec, and archived once done — the concrete result of the spec-driven approach. Each entry links to its current spec in the repository, the precise, testable statement of what that capability does today.

Capability	What it does
Core ledger	The foundational double-entry ledger: recording transactions without picking debit/credit sides, immutable posted entries (corrections via reversal, never edits), a running register, and an income/expense summary.
Multi-account ledger	Multiple asset and liability accounts, account groups, transfers between accounts, per-account balances and registers, and opening balances.
Account currencies	Each account group has its own currency; net worth is tracked per currency, with no forced conversion.
Home overview	The landing screen: every account (active and archived) with its balance, grouped, plus an overall net position.
Foreign-currency settlement	Cross-currency transfers and foreign-currency transactions, posted at a known rate or provisionally and settled later.
Reference exchange-rate lookup	An optional, off-by-default lookup showing a comparison exchange rate on cross-currency transfers — never used to fill in or validate an amount.
Ledger integrity & signing	The device signing identity, hash-chained signed entries, startup integrity verification, and recovery or migration after a lost key.
OFX statement import	Importing bank/credit-card history from OFX/QFX files, with duplicate detection and categorization before posting.
CSV statement import	Importing statement history from CSV files via an explicit, never-inferred column mapping, with reusable saved profiles.
Import category rules	Saved keyword-to-category rules and bulk categorization on the import preview screen, so a category assigned once keeps applying.
Shared UI components	A small set of reusable widgets — destructive-action confirmation, money entry, entity pickers, status banners — used consistently everywhere that shape of UI appears.
User guide	An accurate, end-user guide covering every shipped screen and flow, never describing planned-but-unbuilt functionality.
Contributor guide	The root-level entry point explaining how to propose and submit a contribution.

This list reflects the specs under openspec/specs/ as of when this page was last updated by hand — see the repository for the current, authoritative list.