Review: Scaffold Rails 8 app + data model (re-review)

Verdict: APPROVED

Previous Findings Resolution

• [x] Database conflict -- RESOLVED. Issue now says "PostgreSQL for dev via docker-compose per rails-base pattern." Constraints section updated. Aligns with rails-base/docker-compose.yml (postgres:17-alpine).
• [x] Dockerfile clarification -- RESOLVED. File Targets entry now reads: "Dockerfile -- production container only (dev uses docker-compose with Harbor base image, no Dockerfile needed)." AC updated to "Production Dockerfile builds successfully."
• [x] Multi-database clarification -- RESOLVED. Constraints section now says "Multi-database (Solid Cache/Queue/Cable) is production config -- dev uses single PostgreSQL database." Matches rails-base/docs/multi-database.md.
• [x] Architecture note -- RESOLVED. arch-domain-lil-beasties note created with full ER diagram (Mermaid), Components table, Key Decisions, and Related links. Active status, tagged architecture. Project page Architecture section links to it.
• [x] Story note -- RESOLVED. story-lil-beasties-collect note exists (was created with the project, predating the first review). Contains Role, Key, Want, So That, Acceptance Criteria, Success Metric, Related Architecture. Active status, tagged user-story. Project page user-stories table links to it correctly.

Template Completeness

• [x] Type -- Feature
• [x] Lineage -- Standalone
• [x] Repo -- ldraney/lil-beasties
• [x] User Story -- present, well-formed
• [x] Context -- thorough, includes data model relationships and UX flow
• [x] File Targets -- 12 files listed (11 to create + 1 Dockerfile for production)
• [x] Acceptance Criteria -- 11 criteria, all verifiable
• [x] Test Expectations -- 4 test items + run command (docker compose run web rails test)
• [x] Constraints -- 5 constraints, clear boundaries
• [x] Checklist -- present
• [x] Related -- references project-lil-beasties and arch-domain-lil-beasties

Traceability

• [x] story:collect label -- Collect Monsters
• [x] story note verified -- story-lil-beasties-collect exists in pal-e-docs, active, properly structured
• [x] story entry on project page -- project-lil-beasties user-stories table has "collect" row linking to story-lil-beasties-collect
• [x] arch:rails-monolith label -- present on board item
• [ ] arch note partial -- arch-domain-lil-beasties exists (domain model), but no arch-rails-monolith note exists. The label references "rails-monolith" as the architecture component, but the backing note covers the domain model, not the monolith architecture itself. This is a minor naming mismatch -- acceptable for a greenfield project where the domain model IS the first architectural artifact. Non-blocking advisory: consider creating arch-rails-monolith when deployment architecture is defined (ticket #5), or relabel to arch:domain-lil-beasties.
• [x] Forgejo issue -- https://forgejo.tail5b443a.ts.net/ldraney/lil-beasties/issues/1, open

File Targets

• [x] All 12 file targets are new files to create -- repo contains only README.md (confirmed via Forgejo API). Greenfield scaffold.
• [x] docker-compose.yml -- source template confirmed at ~/rails-base/docker-compose.yml (postgres:17-alpine, Harbor ruby-rails-build image, port 9999)
• [x] Dockerfile -- clarified as production-only. No template in rails-base (confirmed: ~/rails-base/Dockerfile does not exist), so agent must write from scratch. Acceptable -- production Dockerfile is project-specific.
• [x] Rails models, controller, views, routes, seeds -- standard rails generate targets

Repo Placement

Dependencies

• No blocking dependencies -- this is the first ticket on the board (standalone, foundational).
• Board item #1330 (Integrate Phaser 4 + first island scene) depends on this ticket -- needs Rails app and islands#show view.
• Board item #1332 (Keycloak auth integration) depends on this ticket -- issue references "auth wiring comes in #4, stub for now."
• Dependencies are implicitly documented in constraints ("Root route must redirect to login if unauthenticated (auth wiring comes in #4, stub for now)"). Sufficient for a greenfield project.

Acceptance Criteria

• [x] All 11 criteria are concrete and agent-verifiable
• [x] Test commands are real: docker compose run web rails test
• [x] Multi-database now correctly scoped to production config
• [x] No missing criteria for the stated scope

Blast Radius

• Greenfield project -- no existing consumers affected.
• Database conflict resolved -- now aligned with rails-base platform standard (PostgreSQL for dev).
• No downstream risks for this scaffold ticket.

Decomposition Assessment

• 12 file targets in 1 repo, 11 acceptance criteria, 4 test expectations
• Borderline by raw numbers, but this is a rails new scaffold -- most files are generated by rails commands, not hand-written
• Agent workflow is sequential: copy docker-compose, rails new, generate models, configure routes, write seeds, write tests
• No decomposition needed -- a single focused agent pass with rails generators can complete this

Recommendations