Lands L2 of the agent-first coverage architecture (ADR-020) — the
aggregated trend store.
Script: scripts/coverage/aggregate.mjs (zero-dep Node ESM)
- discoverLcovs: walks packages/* and apps/* for coverage/lcov.info
- normalizeLcov: rewrites SF entries from package-relative (vitest's
output) to repo-relative, so the merged file matches git diff paths
- summarizeLcov: computes statement/branch/function/line percentages
from LF/LH/BRF/BRH/FNF/FNH summary records
- aggregate: merges all lcovs and returns mergedLcov + summary
- Writes coverage/lcov.info (gitignored — large) and
coverage/summary.json (committed — trend via git log -- ...) with
timestamp, short commit SHA, repo + per-package percentages
Test surface: scripts/coverage/aggregate.test.mjs (10 tests, all green)
- Fixtures at __fixtures__/aggregate-pkg-a.lcov +
aggregate-pkg-b.lcov (synthetic, structured to make percentages
deterministic)
- Covers: path normalization (prefix, absolute, double-prefix
avoidance), summary computation (percentages, zero-division,
rounding), discovery (packages + apps, missing dirs), full
aggregation in a tmp repo
Wired:
- root package.json adds "coverage:aggregate" script
- .gitignore restructured: per-package coverage/ stays ignored,
aggregated /coverage/ ignored EXCEPT summary.json (committed for
trend) and .gitkeep markers
L1 allowlist fix folded in (scripts/coverage/diff.mjs):
- The previous (^|/)coverage/ regex accidentally caught
scripts/coverage/* — replaced with anchored patterns
(^coverage/, ^packages/*/coverage/, ^apps/*/coverage/)
- Allowlist scripts/ and turbo/generators/ since they're dev tooling
tested via node --test, outside vitest's v8 lcov pipeline
Smoke-tested end-to-end:
- pnpm coverage:aggregate merged 3 lcovs (auth + media + navigation
from this session's earlier runs), repo coverage 95.22% statements
- pnpm coverage:diff against HEAD~1 with the new merged lcov reports
PASS — all 6 diff files correctly allowlisted
First committed snapshot of coverage/summary.json lands with this
commit, anchoring the trend history at this state.
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.
Description
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