spb/air Public MIT

The language of accounting: LLMs produce economic events (AIR), a
deterministic compiler (AIC) produces balanced journal entries under
versioned, source-cited ALSL policies.

All six phases complete:
- Phase 0: 9 cited research reports (GST/QST from official sources,
  LLVM architecture, ledger engines, ERP APIs, camt.053/MT940, ...)
- Phase 1: AIR v0.1 schema, provenance graph (accounting SSA),
  double-entry invariant verified after every pass, 21 golden cases
- Phase 2: incremental compilation (content-fingerprint diff,
  reversal + replacement entries)
- Phase 3: QuickBooks backend (100% offline-tested mock transport),
  managed AIR home (hash-chained ledger, document archive)
- Phase 4: LLM ingestion with confidence routing + human approval inbox
- Phase 5: agent syscalls + hash-chained audit log, closed periods
- Phase 6: fusion/netting/duplicate passes, bank reconciliation
  (camt.053, MT940 with integrity check, CSV)

99 offline tests + 2 opt-in live tests. No floats, no rules in code,
append-only everything.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>