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accounted/.claude/rules/bookkeeping.md
T
Jakob WennbergandClaude Sonnet 5 ec27228a8e style: remove em/en dashes repo-wide, add CLAUDE.md rule against them (#890)
Em dashes (—) and en dashes (–) had spread across comments, docs, tests,
and a few UI strings, reading as AI-generated boilerplate rather than
house style. Replaced each with punctuation matching its context: colon
for explanatory clauses, comma for asides, plain hyphen for numeric/legal
ranges (e.g. "21-23§"), "to"/"till" for date ranges, parentheses for
paired-dash asides. messages/en.json and messages/sv.json were fixed by
hand together to keep sv/en in sync.

Left untouched where the dash is the functional subject rather than
decorative punctuation: date-range-parser.ts's separator regex,
charset-repair.ts's CP1252 byte-mapping table (and its test), the SIE
encoding mojibake docs, generic-csv.ts's minus-sign normalizer, the
agent system-prompt files that already instruct against em dashes, and
a golden iXBRL test fixture compared byte-for-byte.

Also fixes two bugs surfaced along the way: an off-by-one in
ApiKeysPanel's scope-label split (a leftover from an earlier partial
pass), and a charset-repair test that had lost the literal en-dash it
exists to verify.

Regenerated the agent atom seed migration (skills:generate) since 27
SKILL.md files changed. Added a CLAUDE.md rule against em/en dashes,
with an explicit carve-out for the functional-dash cases above.

Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
2026-07-04 15:58:06 +02:00

2.0 KiB
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paths
paths
lib/bookkeeping/**
lib/core/**
lib/reports/**
lib/vat/**
lib/invoices/**
lib/salary/**

Bookkeeping Domain Reference

For Swedish accounting-law questions, use the domain skills (swedish-vat, swedish-accounting-compliance, swedish-year-end-closing, etc.). The Hard Rules in the root CLAUDE.md always apply.

Core Services (lib/core/)

  • bookkeeping/period-service.ts: Fiscal period lifecycle management (open, close, lock)
  • bookkeeping/year-end-service.ts: Year-end closing procedures
  • bookkeeping/storno-service.ts: Reversal/correction entry generation
  • tax/tax-code-service.ts: Tax code definitions and rates
  • audit/audit-service.ts: Audit trail and compliance logging
  • documents/document-service.ts: Document attachment lifecycle (WORM storage with version chains)

Key BAS Accounts

1510 Accounts receivable | 1930 Business bank account | 2013 Private withdrawals (EF) | 2440 Accounts payable | 2611/2621/2631 Output VAT 25%/12%/6% | 2641 Input VAT | 2645 Calculated input VAT (EU) | 2893 Shareholder loan (AB) | 3001/3002/3003 Revenue 25%/12%/6% | 3305/3308 Export/EU service revenue

BAS data (lib/bookkeeping/bas-data/): full BAS 2026 chart by class (1-8) + SRU mapping. Account numbers are strings ('1930', never 1930).

VAT Treatments

standard_25, reduced_12, reduced_6, reverse_charge, export, exempt

Invoice items support individual vat_rate values (mixed-rate invoices). Use getAvailableVatRates(customerType, vatNumberValidated) from lib/invoices/vat-rules.ts. VIES validation via lib/vat/vies-client.ts.

VAT Declaration Rutor (SKV 4700)

VatDeclarationRutor type maps to momsdeklaration:

  • Ruta 05: Domestic taxable sales (3001+3002+3003)
  • Ruta 06/07: Unused, always 0
  • Ruta 10/11/12: Output VAT 25%/12%/6% (2611/2621/2631)
  • Ruta 39/40: EU services / Export (3308/3305)
  • Ruta 48: Input VAT (2641/2645)
  • Ruta 49: Moms att betala/återfå = (10+11+12+30+31+32+60+61+62) − 48