- TypeScript + Fastify skeleton under project/ (src/modules, shared, infrastructure, app) - scripts/check-module-boundaries.mjs enforcing module public-API rules (tested with fixtures) - GET /health endpoint, error envelope without stack leakage - specs/F-001-scaffold (SPEC/DESIGN/TASKS/TESTS), spec/tech.md dependency justification - 30-ticket MercadoDeVida roadmap in backlog/features.json, spec/roadmap.md - All gates approved: reviewer, security, qa; verify.sh green
32 lines
1.5 KiB
Markdown
32 lines
1.5 KiB
Markdown
# Architect — F-001 Scaffold modular monolith skeleton
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done -> work/artifacts/F-001/architect.md
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## Decision summary
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- Backend skeleton: Node 22 + TypeScript strict + Fastify 5, ESM, tsc build. No framework magic, no aliases (relative imports only) so runtime resolution stays trivial.
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- Composition root: `src/app/build-app.ts` is the only place that wires modules onto the HTTP server.
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- Boundary enforcement: explicit script `scripts/check-module-boundaries.mjs` wired into `lint:boundaries`, tested with fixtures. ESLint additionally blocks deep `@module` style imports is NOT needed because we use no aliases; the script is the single source of truth.
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- Spec-first artifacts at `specs/F-001-scaffold/` (SPEC, DESIGN, TASKS, TESTS).
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## Expected blast radius
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```text
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EXPECTED BLAST RADIUS
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Modules modified: none (greenfield; new project/ skeleton only)
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Modules indirectly affected: none
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Database changes: none
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API changes: adds GET /health
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Events added/changed: none
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Risk level: low
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```
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## Stack justification (boring choices)
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- Fastify: maintained, typed, small, no magic.
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- Vitest: TS-native, same mental model as the test pyramid required by design_prompt.
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- ESLint flat config + Prettier: standard.
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- No ORM, no Redis client, no config framework yet — each arrives with the ticket that needs it.
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## Handoff to implementer
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Follow `specs/F-001-scaffold/TASKS.md` in order. Definition of done for build stage: all five commands green and evidence written to `work/artifacts/F-001/implementer.md`.
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