A deterministic CLI that generates fully reconciled, double-entry financial datasets. Give your long-running AI agents realistic books to work on, and a ground truth to verify their own output against.
Σ debits = Σ credits in every entry, a ground truth your agents verify against.
5,910.10 = 5,910.10 ✓
Same seed, byte-identical books on every OS. Reproducible evals.
sha256: run 1 == run 2 ✓
A quick fixture or a full year of books, on demand. csv · jsonl · xlsx.
--volume small · medium · large
One run writes a complete double-entry close of 19 CSVs and a manifest.
Real rows from a seeded run. Click any file. Decimals are exact strings (9 fractional digits), never floats. One run writes 19 CSVs plus manifest.json (seeds, row counts, SHA-256 per file).