* fix(transactions): allow re-linking a bank tx stranded on a reversed verifikat (#988) A transaction whose journal_entry_id points at a reversed/cancelled entry reads as "utan koppling" in the UI (the transactions page enriches only status='posted' links), yet the re-booking guards treated ANY non-null pointer as "already linked". So a storno'd/corrected transaction could never be linked to another verifikat or re-categorized: the exact symptom in issue #988. Add a shared hasLiveJournalEntryLink() predicate used by every re-booking guard (linkTransactionToJournalEntry, manualLink, categorize-core, and the MCP link stage-check): a pointer at a non-posted entry is treated as re-linkable, and the two optimistic-locked writes now lock on the exact previous pointer (null OR the stale id) instead of always .is(null), so the overwrite goes through race-safely. hasLiveJournalEntryLink fails closed on a read error so a transient blip can't detach a genuinely live link. The source was fixed in #726 (reverseEntry/correctEntry now detach/re-point the tx); this makes the guards self-heal for the pre-#726 backlog and any future best-effort miss. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * fix(transactions): detect 0-row CAS before invoice effects; fix categorize commit test Addresses PR review (CodeRabbit Critical + CI): - link-journal-entry.ts: the tx UPDATE now .select('id') and treats a 0-row result as LINK_TX_TX_ALREADY_LINKED, failing BEFORE any invoice settlement / invoice_payments insert. Without this, a concurrent re-link that lost the CAS would still mark the invoice paid against a transaction we didn't link (same optimistic-lock contract manualLink already enforces). - pending-operations commit route test: the categorize_transaction "already categorized" case now enqueues the hasLiveJournalEntryLink status read (posted = live) so it still returns 409. This was the core-only CI failure: the new liveness read in categorize-core consumed a queued response. - Updated the link happy-path / invoice-race test enqueues to return a row for the now-selecting tx UPDATE. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.8 (1M context) <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. 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; Accounted's Bedrock path defaults to a shorter TTL.
Payload-size watchdog
payload-size.bench.test.ts enforces a tools/list JSON payload ceiling (currently 36,000 tokens, bumped from 32,000 when top-level Tool.title landed on all tools for Claude Connectors Directory readiness). 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-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