Codewalkers/.planning/phases/18-initiative-detail/18-04-SUMMARY.md

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

phase	plan	subsystem	tags	requires	provides	affects	tech-stack	key-files	key-decisions	patterns-established	duration	completed
18-initiative-detail	04	ui	react trpc tanstack-router tailwind	plan provides 18-01 InitiativeHeader, ProgressPanel plan provides 18-02 PhaseAccordion, TaskRow, DependencyIndicator plan provides 18-03 DecisionList, TaskDetailModal	Fully assembled Initiative Detail page with data fetching and component wiring	initiative detail route /initiatives/$id	added patterns PhaseWithTasks helper component for stable hooks PlanTasksFetcher data component	created modified packages/web/src/routes/initiatives/$id.tsx	18-04: PhaseWithTasks helper component pattern solves hooks-in-loops problem for nested data fetching 18-04: PlanTasksFetcher renders null — data-only component for per-plan task fetching with stable hook count 18-04: Task counts aggregated via callback from PhaseWithTasks to page-level state 18-04: DecisionList passed empty array — no backend endpoint for decisions yet 18-04: Phase/task dependencies simplified (empty arrays) for v1 — full dependency resolution deferred	Data-fetching component pattern: render null, report data via callback props Nested tRPC fetching: parent fetches list, child component fetches per-item details	4min	2026-02-04

Phase 18 Plan 04: Initiative Detail Page Assembly Summary

Wire all Phase 18 components into the $id.tsx route with tRPC data fetching, queue actions, and full build verification

Performance

• Duration: 4 min
• Started: 2026-02-04
• Completed: 2026-02-04
• Tasks: 2
• Files modified: 1

Accomplishments

• Replaced placeholder Initiative Detail page with full implementation
• Data fetching via tRPC: getInitiative, listPhases, listPlans (per phase), listTasks (per plan)
• PhaseWithTasks helper component solves the hooks-in-loops problem by giving each phase its own component instance with stable hook count
• PlanTasksFetcher data component fetches tasks per plan and reports upward via callbacks
• Two-column layout: phases on left, progress panel + decisions on right (lg:grid-cols-[1fr_340px])
• Task counts aggregated from PhaseWithTasks children into page-level state for ProgressPanel
• TaskDetailModal opens on task click with phase name, dependencies, and queue/stop actions
• Queue All button dispatches all pending phases; Queue Task button in modal dispatches single task
• Loading/error states matching InitiativeList patterns
• First incomplete phase expanded by default

Task Commits

Each task was committed atomically:

1. Task 1: Wire Initiative Detail page with data fetching and all components - 1e26bfa (feat)
2. Task 2: Verify full build and integration - No code changes needed; all builds passed

Files Created/Modified

• packages/web/src/routes/initiatives/$id.tsx - Full initiative detail page with data fetching, component wiring, queue actions, and modal

Decisions Made

• 18-04: PhaseWithTasks helper component pattern solves hooks-in-loops problem for nested data fetching
• 18-04: PlanTasksFetcher renders null — data-only component for per-plan task fetching with stable hook count
• 18-04: Task counts aggregated via callback from PhaseWithTasks to page-level state
• 18-04: DecisionList passed empty array — no backend endpoint for decisions yet
• 18-04: Phase/task dependencies simplified (empty arrays) for v1 — full dependency resolution deferred

Deviations from Plan

• Skipped instanceof Date checks for serialization — tRPC serializes Date to string over JSON, so String() wrapping is sufficient
• No separate commit for Task 2 since no code changes were needed

Issues Encountered

None

User Setup Required

None — no external service configuration required.

Verification

• npx tsc --noEmit -p packages/web/tsconfig.app.json passes
• npx vite build in packages/web succeeds
• npm run build in root succeeds
• Route registered in routeTree.gen.ts for /initiatives/$id

Next Phase Readiness

• Phase 18 (Initiative Detail) is complete
• Ready for Phase 19 (next phase in ROADMAP)

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Phase: 18-initiative-detail Completed: 2026-02-04