runSubmit did two things at once: fold a call into a Result, and mint an Idempotency-Key for it. Five call sites are reads and had no business minting one — brief.adapter.ts:load, org-template.adapter.ts :list/:load, and stamdata.adapter.ts:list/:load. stamdata.adapter.ts's own docstring already said "Both endpoints are reads … There is no write method" while both called runSubmit; that mismatch is the sharpest evidence, and the reason the baseline's original "~13 mutations" count (derived from the helper's name, not the code) was wrong by five in one direction. Split submit.ts in place: runResult is the try/catch + problemDetail fold with no mint; runSubmit is runResult wrapping withIdempotencyKey. Zero behaviour change for the 8 real mutations (brief save/submit/approve/reject/send/reset, org-template save/publish/rollback) — same fold, same mint, same timing. The five reads now run the fold with no pendingIdempotencyKey touched. submit.spec.ts asserts the split behaviourally via currentIdempotencyKey() (two reads inside the same call agree only when a key was minted and reused) rather than mocking a relative import, matching this repo's existing vitest convention. Verified red without the fix by temporarily reintroducing the mint into runResult. ApplicationsStore.cancel/AdminCasesStore.delete (RB-20) and FeatureFlagStore.set are out of scope and untouched — the latter already calls runSubmit correctly. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Documentation
Docs are split by kind, and kept out of each other's way:
reference/— information. How the system works and why: architecture, decisions (ADRs), the FP/TEA/atomic learning guide, accessibility and UX reference. Stable knowledge, not tied to a sprint.project/— administration. Planning and tracking: the work-package backlog, product requirements (PRDs), and the (superseded) roadmap. This is the moving, process-facing material.
Teaching material that is best read next to the components lives in Storybook, not
here — see the Foundations section (libs/shared/docs/*.mdx, run npm run storybook).
The reference/ docs are the long-form source; the Foundations pages are the condensed,
cross-linked curriculum.
Starting out? Foundations → Learning Path (libs/shared/docs/learning-path.mdx) is a
paced, hands-on three-day route through the codebase; Foundations → Overview
(overview.mdx) is the map of every idea, cross-linked.
reference/ — information
| Doc | What it is |
|---|---|
| architecture/ARCHITECTURE.md | The architecture walkthrough: contexts/layers, state management, parse-don't-validate, the feature recipe, the .NET backend seam. |
| architecture/0001-bff-lite-decision-dtos.md | ADR — BFF-lite endpoints + decision DTOs (backend decides, FE renders). |
| architecture/0002-user-groups-and-bounded-contexts.md | ADR — user groups as actors; identity vs authorization. |
| architecture/0003-cibg-huisstijl.md | ADR — adopt CIBG Huisstijl (vendored Bootstrap 5.2) + the token bridge. |
| architecture/0004-stamdata-as-code.md | ADR — business-tunable reference data as typed, compile-time-validated config (not a production DB). |
| architecture/0005-openzaak-behind-bff.md | ADR — connect to OpenZaak (ZGW APIs) behind the BFF via a config-gated data-source seam; the FE never changes. |
| architecture/0006-test-data-builders.md | ADR — build test data through the production door: type-state builders, reducer replay, and which fixture idiom fits which test. |
| openzaak-integration.md | How the BFF sources cases from OpenZaak (the IZaakSource seam + ZGW client), and how to add the next slice. |
| ../backend/openzaak/README.md | Docker harness for running OpenZaak locally: bring-up, integration test, notifications, teardown. |
| stamdata.md | How stamdata (config-as-code reference data) is laid out, how to add a table with zero UI code, and why coupling stays low. |
| audit-log.md | How the data-minimised authz/PII-reveal audit trail is built, how to audit a new action, and the one-producer-hub coupling. |
| feature-flags.md | How runtime feature flags work (catalog-as-code + runtime state), how to add one, and the hand-wired gating coupling to watch. |
| scaffolding.md | How code generation & scaffolding work: plop generators (gen:value-object/gen:form-machine), the NSwag client (gen:api), showcase snippets, and the skill recipes. |
| roles-and-access.md | The roles/actors + capability model: who can do what, how to switch roles in dev, and what each unlocks. |
| architecture/dependencies.md | Bounded-context + atomic-layer boundaries: the allowed-import rules, how they're enforced (dep:check) and visualized (dep:graph). |
| architecture/dependency-graph.md | Generated mermaid graph of contexts × layers (regenerate with npm run dep:graph). |
| fp-tea-atomic-design.md | Long-form learning guide: FP + The Elm Architecture + atomic design. |
| wcag-checklist.md | Manual WCAG checks automation can't catch (tab order, focus traps, reflow). |
| ui-ux-audit.md | Early UI/UX audit against NL Design System (predates ADR-0003 — read in that light). |
project/ — administration
| Doc | What it is |
|---|---|
| backlog/README.md | The work-package backlog index — the live tracker, with the session protocol. |
| prd/0001-mijn-aanvragen-en-wizardstatus.md | PRD — "Mijn aanvragen": running wizards, application status, document preview. |
| prd/0002-attribute-based-access-control.md | PRD — attribute-based access control in the UI. |
| prd/0003-brief-v2-demo-script.md | Demo script — Brief v2 scenarios mapped to a URL + click path (WP-28). |
| SHOWCASE-ROADMAP.md | Superseded roadmap (absorbed into project/backlog/) — kept for history. |