Danijel Martinek
4dce1df084
Architecture record for the agent-first coverage initiative seeded by the 2026-05-13 PRD. Captures the durable decisions: - 4-layer architecture (L0 vitest, L1 diff, L2 aggregate, L3 mutation) - Manifest-driven coverage band as single source of truth (vitest + assertFeatureConformance + pnpm coverage:diff all read from it) - Cover-the-diff (changed lines), not cover-the-new-code - Committed coverage/summary.json (no SaaS), trend via git log - Mutation testing scoped to entities + use-cases, on-demand only - Machine-first output format (JSON stdout, human stderr) Glossary gets a new "Coverage" section with 7 entries (coverage band, L0-L3 layers, diff coverage, mutation testing, mutation score, coverage/summary.json), plus two relationship rows and a flagged ambiguity for "coverage" qualifiers. prompt-context.sh hook gets a 9th keyword group — when a prompt mentions coverage / uncovered / lcov / mutation / stryker, the relevant ADR + guide path are injected as additional context for the turn. This is the documentation layer of the coverage epic. Implementation (manifest schema, vitest auto-derive, scripts, boot assertion, mutation tooling) lands in subsequent stories. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Clean Architecture Monorepo Template
Turborepo + pnpm monorepo organised by vertical features, with an agent-first workflow and five conformance gates.
This template is built for agent-driven development. Sandcastle is the orchestration substrate; pnpm work dispatch is the entry point. See ADR-019 for the decision rationale and docs/guides/runbook.md for end-to-end usage.
Start here
Read docs/guides/runbook.md — day-1 onboarding (prerequisites, env vars, daily commands, troubleshooting, Using Sandcastle for agent dispatch).
Quick reference
pnpm install # Install + auto-wire husky pre-commit hooks
pnpm dev # All dev servers (web-next:3000, cms:3001, web-tanstack:3002, storybook:6006)
pnpm test # All tests
pnpm typecheck # TypeScript across all packages
pnpm lint # ESLint (incl. 8 conformance/* rules)
pnpm conformance # Cross-feature event closure
pnpm fallow # Whole-codebase: dead exports, dupes, complexity
pnpm turbo boundaries # Workspace dependency graph
pnpm work status # docs/work/ epic + story state
docker compose up -d # Start PostgreSQL
Documentation map
docs/guides/runbook.md— start hereCLAUDE.md— full conventions referenceAGENTS.md— package map + boundary rulesdocs/guides/conformance-quickref.md— manifest + 5-gate daily referencedocs/architecture/agent-first-workflow-and-conformance.md— full designdocs/architecture/feature-conformance-explainer.html— interactive explainer
Scaffolding
pnpm turbo gen feature <name> # Scaffold a feature (manifest + contracts + tests)
pnpm turbo gen event # Event contract or handler (requires gen core-package events)
pnpm turbo gen job # Background job
pnpm turbo gen realtime # Realtime channel (requires gen core-package realtime)
pnpm turbo gen core-package <name> # Optional core: events / realtime / trpc / ui / audit
pnpm turbo gen core-ui-component <name> # Atomic-design component
Generator-first is non-negotiable — hand-rolled feature/event/job/realtime/component code is rejected by reviewer agents and may fail the CI scaffold-drift check.
Optional packages
Five core packages scaffold on demand:
pnpm turbo gen core-package realtime # Socket.IO realtime layer (ADR-016)
pnpm turbo gen core-package events # Cross-feature events + Payload jobs (ADR-015)
pnpm turbo gen core-package trpc # tRPC server setup
pnpm turbo gen core-package ui # Design system
pnpm turbo gen core-package audit # DPA-compliant audit logging (ADR-018)
See docs/architecture/template-tiers.md for the full tier list.