swaitsandClaude Opus 5.5
b5af21bb0e
Every statement export rendered life-of-ledger totals under whatever date range or as-of label was asked for, and the P&L and balance sheet XLSX were totals-only. Now: - books.profit_and_loss / books.balance_sheet and the csv, json, xlsx, pdf exports and CPA package all use core's profit_and_loss_for_period and balance_sheet_as_of, with a line per account. The tools keep their totals and add revenue/expense/asset/liability/equity account lines. An omitted start is the first posted entry, never "0001-01-01". - ledger-import::report lays a statement out once (section, line, subtotal, total) for every renderer, with one exact amount formatter: thousands separators, negatives in parentheses, no floats. XLSX keeps numeric cells with an accounting number format, named sheets, company header, totals with borders; the trial balance gains its totals row. - ledger-mcp reads wanderbooks.toml (next to --data-dir, or --books-toml): company name for headers, fiscal_year_start for the CPA package's fiscal year to date (end derived; Feb 29 rejected), and [books] receipt_threshold, which the server had been ignoring. config.json's receipt_policy still wins when set. New dependency: toml 1.x (already in the lockfile via another crate). - Store::journal_seq(); every report notes the journal seq it reflects. Tests: company.rs unit tests (fiscal years incl. a July start, scaffold parsing, bad settings); report.rs formatting tests; an MCP stdio test with --books-toml (threshold 5.00 enforced, February-only P&L with account lines, start defaults to the first entry, as-of balance sheet). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MtYEaR6M6Ybdhm6X98BWNu
wanderbooks
Canonical double-entry bookkeeping, rebuilt from scratch. The engine is verified against oracles, parity is tracked automatically, and the primary interface is AI-first: you talk to an agent, the agent drives the books through MCP. Self-hosted, no rent.
What it is
ledger-core— the semantics engine. Exact decimal money, five account types, balanced journal entries, immutable posted log with reversing entries, trial balance, P&L, balance sheet, indirect-method cash flow, fixed-asset register with straight-line depreciation.ledger-store— durable storage. The source of truth is an append-only, hash-chained JSONL journal; SQLite is a disposable projection rebuilt from it; receipts live in a content-addressed blob store. Drafts are durable, corrupt projections self-heal.ledger-mcp— the AI-first interface. 27 MCP tools over stdio or Streamable HTTP: draft → preview → post workflow, server-side receipt policy (>$25), anti-splitting detection, asset management, digest for human review, plus read-only resources for dashboards.ledger-import— QuickBooks interop. Import bank/credit-card CSVs and chart-of-accounts CSVs; export IIF journal entries (for QuickBooks Desktop) and XLSX reports.
Verification
This is the storytold way applied to accounting: agents verify against oracles, never ship what they haven't demonstrated.
- 70 workspace tests: invariant tests encoding accounting law, golden-file report snapshots, property tests (proptest), end-to-end MCP stdio tests.
- Mutation testing via cargo-mutants; fuzzing via cargo-fuzz (11.5M+ executions, zero crashes).
- GnuCash is the behavioral oracle (never a code source — clean room, MIT OR Apache-2.0).
Status
Parity is 12 of 12 against the spreadsheet workflow it replaces
(docs/capability-parity.md). The parallel-run plan
(docs/parallel-run.md) is written; the Google Sheet stays the system of
record until a clean month and explicit cutover approval.
See plan/STATUS.md for where things stand and
plan/roadmap.md for where it's going.
Quickstart
cargo test # whole suite
cargo run -p ledger-cli -- init ~/books/acme # scaffold a books dir: mise.toml + AGENT.md
cargo run -p ledger-mcp -- --data-dir /tmp/books # MCP server over stdio
Then cd ~/books/acme: mise trust && mise install, mise run build,
mise run mcp-add, and start claude — the agent onboards from AGENT.md.
Layout
crates/ledger-core/ # engine: money, accounts, journal, ledger, reports
crates/ledger-store/ # journal + SQLite projection + blob store
crates/ledger-mcp/ # MCP server: 27 tools, resources, receipt policy
crates/ledger-import/ # QBO CSV import, IIF/XLSX export
docs/ # requirements, architecture, oracle, parity, glossary
plan/ # STATUS.md, roadmap.md
AGENTS.md # operating manual for agents working here
License
MIT OR Apache-2.0. See LICENSE-MIT and LICENSE-APACHE.