MattssonandClaude Fable 5
fbe4e18730
* feat(mcp): book on custom accounts via account_override; fix kontoplan settings link gnubok_categorize_transaction only spoke a 19-category enum mapping to 21 hardcoded BAS accounts, so company-custom accounts (e.g. VMB) were unreachable from the agent surface even when active in the chart. - add account_override to gnubok_categorize_transaction with v1 REST semantics via a shared helper (lib/bookkeeping/account-override.ts): business-side replacement, class-2 auto-VAT drop with the 2610-2649 moms-line exception, plus a same-account degenerate guard; validated at staging and re-validated at commit - align the gnubok_create_voucher staging gate with the engine's seeding semantics: BAS 2026 accounts merely absent from the chart pass (the engine backfills them at commit) and the preview lists will_activate_accounts with BAS-name fallback; non-BAS unknown and inactive accounts still rejected - stop suggest_categories silently dropping mapping rules whose account is outside the fixed category maps; they surface with the rule's own account and an explanatory match_reason - correct the create_account next-step hint (categorize could never use the new account before; now true via account_override) - point the settings "Kontoplan (BAS)" link at /chart-of-accounts and redirect the orphaned /bookkeeping?tab=accounts URL (tab removed in #850; the deep link never worked after the #854 merge collision) Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(mcp): address review findings on account_override - commit executor rejects a present-but-malformed stored account_override loudly instead of degrading to the category default (CodeRabbit major; the approver approved a preview showing the override account); with commitPendingOperation regression tests - accountToCategory returns null for unknown income accounts so custom income accounts get the same diagnostic as expenses (CodeRabbit minor), with income + reason-accumulation tests (CodeRabbit nit) - pin the class-2 VAT-drop balance invariant with a test through buildTransactionEntryLines (Swedish compliance review: gross booking, never an unbalanced net + missing VAT leg) - account_override description asks the agent to state the actual affärshändelse in notes when overriding (BFL 5 kap description concern) - eventBus.clear() in the two new test suites (CodeRabbit minor) Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(mcp): never guess a moms leg onto an account_override without explicit VAT intent Round-2 Swedish compliance finding: the class-2 VAT drop did not cover margin-scheme (VMB) accounts in class 3/4, which are the override's flagship use case, so a forgotten vat_treatment attached the category default standard_25 and booked an ingående-moms deduction on a transaction where input VAT is not deductible (ML 2023:200). applyAccountOverride now takes explicit VAT intent (vat_treatment or vat_amount present) and books GROSS with no auto-VAT line without it: forgetting the flag under-deducts (lawful), never over-deducts. Both call sites (MCP staging preview, commit core) derive the flag the same way; the tool description states the enforced behavior. Deliberate divergence from v1 REST recorded in DECISIONS.md. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * chore: move stray decision-log entry to the root DECISIONS.md The round-2 entry was appended from the wrong working directory and landed as lib/bookkeeping/__tests__/DECISIONS.md. Co-Authored-By: Claude Fable 5 <noreply@anthropic.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