* fix(supplier-invoices): self-assess reverse-charge VAT + link payments to vouchers Reverse-charge supplier invoices now carry a per-item reverse_charge_rate (0.06/0.12/0.25). Under omvänd skattskyldighet the supplier charges 0% VAT, so the line vat_rate stays 0 and the buyer self-assesses fiktiv moms at the statutory rate. Centralizes rate resolution (resolveReverseChargeRate) and the ruta 20-24 basis-account guard (isReverseChargeBasisAccount) in vat-entries so the booking engine and review-dialog preview can no longer drift. Adds the link_supplier_invoice_voucher pending operation: mark a leverantorsfaktura paid by linking an existing posted verifikat that debits 2440, with no new journal entry. Exposes find-candidates/link MCP tools and the bulk-reconcile helper, scoped under suppliers:read/write. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * fix(vat): report yearly VAT over the rakenskapsar, not the calendar year Annual VAT (helarsmoms) is filed per beskattningsar/rakenskapsar (SFL 26 kap), which can be extended or shortened up to 18 months. The previous Jan-Dec calendar span silently dropped part of an extended first year. calculateVatDeclaration now accepts a fiscalPeriodId and resolves the period's actual bounds for yearly; monthly/quarterly stay calendar. The reports UI passes the selected fiscal period, defaults the periodicity from the company's moms_period setting, and carries the period into the ruta drill-down. full-archive export threads the period id through too. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * fix(migration): resolve supplier invoice status from payment amounts The provider's lifecycle status and its payment status are computed independently upstream and can contradict each other (e.g. a Fortnox invoice marked booked but fully paid). Both the arcim entity-mapper and the Fortnox mapper now let payment state win: fully paid -> paid, partial -> partially_paid, otherwise the mapped lifecycle status, with credit notes forced terminal. Balance is compared numerically (never strict === 0) so float drift or a residual ore resolves cleanly, and an absent Balance is treated as unpaid. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * fix(enable-banking): only ingest booked transactions to stop re-import drift Pending entries are skipped during sync: a pending row is unstable across syncs (a later 'synka nu' returns it still pending or finally booked, often with a different effective date). Because both the dedup external_id and the content-dedup key are date-derived, that drift minted a new id and re-imported a transaction that already existed - observed in production as the same amount+description landing twice with different dates. Gating the import set on a stable booking_date removes the drift at the source and leaves booked rows' ids byte-identical. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * chore(gitignore): ignore local SIE test fixtures tests/fixtures/sie/ may contain real or scrubbed company data and must never be committed. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * fix(invoice): handle errors during registration journal entry creation and ensure invoice rollback feat(tests): add test for reverse charge rate handling on supplier invoice line items feat(fortnox): ensure paid status reflects zero balance for fully paid invoices chore(migrations): add reverse_charge_rate to supplier_invoice_items and backfill link_supplier_invoice_voucher --------- Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
gnubok MCP server
JSON-RPC 2.0 server exposing the gnubok bookkeeping engine to MCP clients (Claude Desktop, Claude Code, etc.). Endpoint: /api/extensions/ext/mcp-server/mcp. OAuth and stdio bridge live alongside the API surface — see app/api/mcp-oauth/ and packages/gnubok-mcp/.
Tool authoring contract
Enforced by tests in __tests__/ — these are not style preferences, they're guard rails.
additionalProperties: falseon everyinputSchema. Guarded bystrict-schemas.test.ts. Forces clear rejections on hallucinated fields instead of silent ignores.- Descriptions ≤ 280 chars. Guarded by
output-schema.test.ts. NoArgs:/Returns:/Examples:prose — those belong in JSON Schema. Use agent-native hints ("Use to…", "Call X first", "HIGH risk"). - Staged-operation envelope for write tools —
outputSchema: STAGED_OPERATION_SCHEMA(server.ts). Fields:staged, risk_level, actor, message, preview, period_status?, next?. Thestaged: trueboolean is the explicit completion signal; agents must not infer completion from prose. Do NOT introduce a parallel{ success, shouldContinue, output }envelope. period_statusthreading — any tool that ties to a fiscal-period-bound date (categorize, mark paid, create voucher, correct/reverse entry, approve supplier invoice) passesdateForPeriodChecktostagePendingOperation. Response then includesperiod_status: { period_id, status: open|locked|closed, lock_date }so widgets and agents disable writes without round-trips.- Scope mapping — every new tool needs an entry in
lib/auth/api-keys.tsTOOL_SCOPE_MAP. Missing entries default to deny. - Tests for new write tools — add staging-gate coverage to
__tests__/voucher-tools.test.ts(or a sibling) plus executor coverage tolib/pending-operations/__tests__/voucher-executors.test.tsif the tool stages a newoperation_type.
Determinism / cache stability
Tool definitions (name, description, inputSchema, outputSchema, annotations) are declared as static object literals at module load — no timestamps, no UUIDs, no Date/Math.random in the definition layer. This makes the tools/list JSON payload byte-stable across requests, which lets agent-side prompt caches stay warm. Do not introduce per-request non-determinism into the definitions block. Anything time-bound or random belongs inside execute().
For internal Anthropic API usage (today only extensions/general/invoice-inbox/lib/extract-invoice-fields.ts): annotate stable prefixes with cache_control: { type: 'ephemeral' } and log usage.cache_read_input_tokens for hit-ratio observability. The 1h TTL from the agent-native API plan (item 10) requires the direct Anthropic API; gnubok's Bedrock path defaults to a shorter TTL.
Payload-size watchdog
payload-size.bench.test.ts enforces a tools/list JSON payload ceiling (currently 25,000 tokens). If the test fires, the right answer is rarely "raise the ceiling" — instead, trim descriptions or leverage gnubok_search_tools (already deployed; tool definitions can defer to it for discovery rather than enumerating in tools/list).
Where things live
server.ts— the tools array + JSON-RPC dispatchertool-result.ts—withNext(),toToolError()response helpersresources/— read-onlygnubok://URIs (active company, period, recent activity, capabilities, attention items, voucher gaps, chart of accounts, VAT treatments)widgets/— inline HTML widgets (receipt-matcher, vat-review)prompts/— slash-command-style promptsskills/— domain-knowledge skill bodies served viagnubok_load_skill__tests__/— strictness guards + per-tool coverage