Danijel Martinek
4b6b61ab4c
Codifies a single source of truth for use-case input/output contracts: - Every use case exports xInputSchema/XInput and xOutputSchema/XOutput from its own file; controllers and tRPC procedures import the same schema. Use case body runtime-validates output via .parse before returning. - Controllers gain a co-located top-level `function presenter` (Lazar-style) that reshapes entity output to view DTO; controller return type = ReturnType<typeof presenter>. - Domain error → TRPCError mapping moves to per-feature integrations/api/procedures.ts via a defineErrorMiddleware factory in core-shared/trpc/. core-shared never enumerates feature errors. - Per-feature public-API surface cleaned: feature root = contracts only (types, errors, schemas, IUseCase aliases, router type); new ./ui subpath holds query builders / components. 30 numbered rules using RFC-2119 MUST/SHOULD language so every enforceable decision is citable from CLAUDE.md and per-feature AGENTS.md during the post-Plan-9 doc-update pass. Includes file-shape templates, migration order (~9 commits), doc-update mapping per rule, and an ADR-013 mandate. Spec: docs/superpowers/specs/2026-05-06-input-output-unification-design.md Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>