* feat(reconciliation): skattekonto bridge engine, sync-time twin proposals, account-keyed facade The engine half of the reconciliation page (design: Avstämningsmotorn). - lib/reconciliation/skattekonto-reconciliation.ts: getSkattekontoReconciliationStatus anchors at the saldo snapshot and returns the bridge (saldo hos Skatteverket, händelser som saknas, 1630-rader utan händelse, ignorerade, ingående skillnad, bokfört), the item buckets the page shows (proposed, unmatched external, unmatched ledger, matched, ignored, upcoming), opening_difference, unexplained_difference (0,00 by construction when data is consistent), dead-link handling (a link to a reversed/draft entry counts as unlinked and is flagged), awaiting_external for ledger lines within 5 days of the snapshot, staleness, and a window that scopes item lists without hiding older rows. Core reads skattekonto_transactions and the extension's snapshot row directly; no @/extensions import. - lib/reconciliation/gl-balance.ts: one ledger-balance helper with the trial-balance predicate status IN (posted, reversed). The drift check summed posted only, which misstated 1630 for any company with a storno on the account; skattekonto-drift.ts now delegates to the helper. - Proposals at sync: migration 20260823120000 adds suggested_journal_entry_id / suggested_at (ON DELETE SET NULL, partial index on open rows); the sync calls refreshSkattekontoProposals after the upsert. findMatchSuggestionsBulk now assigns one-to-one across rows (AGI period first, then nearest date) and falls back to an entry whose 1630 lines net to the amount (split lines); a proposal is never a link. - lib/reconciliation/service.ts + schemas.ts: the account-keyed facade (bank:<cash_account_id> | skattekonto | manual:NNNN) with listReconciliationAccounts (enabled cash accounts folded per IBAN, skattekonto when configured) and getAccountStatus dispatching to the bank engine or the new one; shared Zod shapes for the v1 registry, MCP schemas and the UI (PR 2). Tests: identity on a mixed fixture, storno pair, stale snapshot, awaiting window, window scoping, failed ledger read, live-linked entries never proposed; matcher one-to-one and split-line cases; proposal refresh writes/clears; service dedupe and dispatch. No UI in this PR. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(reconciliation): roundOre instead of inline öre rounding (guard ratchet) The antipattern ratchet counts Math.round(x*100)/100; the new engine used it in five places. Switch to roundOre from @/lib/money and ratchet the baseline down by the three occurrences this removes net of the matcher rewrite. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * feat(reconciliation): three doors over one engine: dashboard routes, v1 API and MCP tools for account-keyed reconciliation PR 2 of the Avstämning build (design: Avstämning via API och MCP). Every door calls lib/reconciliation/{service,items,actions}.ts; none re-implements a link. - lib/reconciliation/items.ts: listAccountItems per account_key, the page's buckets (proposed, unmatched_external, unmatched_ledger, matched, ignored, upcoming), limit/offset; skattekonto from the engine, bank from the scoped transactions + unlinked GL lines (netted per entry). - lib/reconciliation/actions.ts: matchPairs (pairs or use_proposals, dry run, partial success with codes), unmatchLink, setItemIgnored; emits reconciliation.matched / reconciliation.unmatched. - lib/skatteverket/skattekonto-link.ts: canonical core link semantics for a skattekonto row (single line or entry net on 1630, live-link guard, race-safe update, unlink, ignore); the extension keeps its own matchSkattekontoToEntry until its tests are ported. - Dashboard routes /api/reconciliation/accounts[...]: list, status, items, links (POST), links/{linkId} (DELETE), items/{itemId}/ignore (POST); apply directly (a human clicked). - v1 routes /api/v1/companies/{id}/reconciliation/accounts[...]: same six, withApiV1, new scopes reconciliation:read / reconciliation:write (write is a staging scope for SoD), Idempotency-Key + dry_run on writes, registered for OpenAPI, load-routes, skills/accounted-api regenerated. Legacy bank routes and their transactions:* scopes unchanged. - MCP: gnubok_get_reconciliation_status takes account_key (legacy bank path untouched), new gnubok_list_reconciliation_items (default catalog), gnubok_reconcile_match (stages reconciliation_match, preflight = status) and gnubok_reconcile_unmatch (stages reconciliation_unmatch), both search-only to stay under the tools/list payload ceiling; gnubok_link_transaction_to_journal_entry moved to search. Executors in commit.ts; risk tiers medium/low; migration pair 20260823130000/130001 adds the two op types to the CHECK constraint (value list = live prod as of 2026-08-23 + the two); close_period loadout updated. Tests: service/actions/items/link unit tests, v1 route tests (401/403/400/404/ happy, idempotency, dry run), dashboard route tests, MCP tool tests + the guard suite (payload ceiling, descriptions, staging meta, qualified ids). Guards and apiskill:check green; no type errors in changed files. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(reconciliation): refresh the v1 spec snapshot and keep the ignore update readable by the phantom-column guard The six new v1 reconciliation endpoints and the two new scopes were not recorded in the spec snapshot, and setSkattekontoRowIgnored updated through one conditional payload, which the phantom-column scanner cannot read (ceiling 380 -> 381). Two literal payloads instead; snapshot updated. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> --------- Co-authored-by: Jakob Wennberg <311770904+jakobwennberg-oss@users.noreply.github.com> Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
Accounted MCP server
JSON-RPC 2.0 server exposing the Accounted bookkeeping engine to MCP clients (Claude Desktop, Claude Code, etc.). Endpoint: /api/extensions/ext/mcp-server/mcp. Add ?tool_namespace=accounted for the Accounted tool names. Requests without it retain the legacy Gnubok namespace. OAuth and stdio bridges live alongside the API surface: see app/api/mcp-oauth/, packages/accounted-mcp/, and the compatibility package in 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; Accounted's Bedrock path defaults to a shorter TTL.
Payload-size watchdog
payload-size.bench.test.ts enforces a tools/list JSON payload ceiling. If the test fires, the right answer is rarely "raise the ceiling". Instead, trim descriptions or set specialized wide tools to catalogVisibility: 'search'. Those tools remain discoverable with full schemas through gnubok_search_tools and callable through tools/call without bloating the default catalog.
Where things live
server.ts: the tools array + JSON-RPC dispatchertool-result.ts:withNext(),toToolError()response helpersresources/: read-onlyAccounted://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