Codewalkers/.planning/phases/16-frontend-scaffold/16-02-SUMMARY.md

phase, plan, subsystem, tags, requires, provides, affects, tech-stack, key-files, key-decisions, duration, completed

phase	plan	subsystem	tags	requires	provides	affects	tech-stack	key-files	key-decisions	duration	completed
16-frontend-scaffold	02	infra	typescript trpc monorepo shared-types	phase provides 02-data-layer DB entity types (Initiative, Phase, Plan, Task, Agent, Message) phase provides 01.1-hexagonal-architecture tRPC AppRouter type	@codewalk-district/shared package exporting AppRouter and entity types Type-safe imports for frontend consumers	17-initiative-dashboard 18-initiative-detail 19-agent-inbox 16-03-trpc-client	added patterns shared types package for monorepo type sharing via relative re-exports	created modified packages/shared/package.json packages/shared/tsconfig.json packages/shared/src/index.ts packages/shared/src/trpc.ts packages/shared/src/types.ts package-lock.json	Dropped composite from tsconfig — no build step, consumed directly via TypeScript Set rootDir to ../.. so tsc resolves relative imports into backend source without rootDir violations Added skipLibCheck to avoid drizzle-orm third-party type errors in gel/mysql modules	3min	2026-02-04

Phase 16 Plan 02: Shared Types Package Summary

@codewalk-district/shared package exporting AppRouter and entity types via relative re-exports for frontend consumption

Performance

• Duration: 3 min
• Started: 2026-02-04T17:54:00Z
• Completed: 2026-02-04T17:57:00Z
• Tasks: 1
• Files modified: 6

Accomplishments

• Created packages/shared/ with type-only re-exports for AppRouter and DB entity types
• Frontend can now import types from @codewalk-district/shared instead of reaching into backend internals
• TypeScript compiles cleanly in both shared package and root project
• All 452 existing tests pass with no regressions

Task Commits

Each task was committed atomically:

1. Task 1: Create shared types package - 4a37371 (feat)

Files Created/Modified

• packages/shared/package.json - Package manifest for @codewalk-district/shared
• packages/shared/tsconfig.json - TypeScript config with rootDir set to repo root for relative imports
• packages/shared/src/index.ts - Barrel export of AppRouter and entity types
• packages/shared/src/trpc.ts - Re-exports AppRouter from backend router
• packages/shared/src/types.ts - Re-exports Initiative, Phase, Plan, Task, Agent, Message from schema
• package-lock.json - Updated with workspace linking

Decisions Made

• 16-02: Dropped composite: true from tsconfig since package has no build step (consumed directly via TypeScript)
• 16-02: Set rootDir: "../.." to allow TypeScript to resolve relative imports into backend source without rootDir violations
• 16-02: Added skipLibCheck: true to avoid drizzle-orm third-party declaration errors (gel/mysql modules)

Deviations from Plan

Auto-fixed Issues

1. [Rule 3 - Blocking] Fixed TypeScript rootDir and composite configuration

• Found during: Task 1 (TypeScript compilation verification)
• Issue: Plan specified composite: true but tsc with composite requires all referenced files under rootDir. Relative imports into ../../src/ caused rootDir violations and file-not-in-project errors.
• Fix: Removed composite, set rootDir: "../..", added skipLibCheck: true
• Files modified: packages/shared/tsconfig.json
• Verification: npx tsc --noEmit passes in both shared package and root project
• Committed in: 4a37371 (part of task commit)

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Total deviations: 1 auto-fixed (1 blocking) Impact on plan: Auto-fix necessary for TypeScript compilation. No scope creep.

Issues Encountered

None

User Setup Required

None - no external service configuration required.

Next Phase Readiness

• Shared types package ready for tRPC client wiring in Plan 03
• AppRouter type importable from @codewalk-district/shared
• Entity types importable for component props

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Phase: 16-frontend-scaffold Completed: 2026-02-04