Files

Lukas May 51c26d6d19 docs(21-05): create summary and update state for code splitting & performance

Add 21-05-SUMMARY.md documenting route-based code splitting results
(582 KB -> 454 KB main chunk + route-level chunks) and PlanTasksFetcher
useEffect fix. Update STATE.md to plan 5/6 with new decisions.

2026-02-05 09:06:13 +01:00

3.1 KiB

Raw Blame History

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

21-polish-integration

vite

tanstack-router

code-splitting

performance

react

phase	provides
21-01	ErrorBoundary, toast infrastructure

phase	provides
21-02	Skeleton loading states

phase	provides
21-03	Navigation links, mobile responsive

Route-based code splitting via TanStack Router autoCodeSplitting

PlanTasksFetcher render loop fix (setState-during-render eliminated)

21-polish-integration

added

patterns

autoCodeSplitting for route-level lazy loading

modified

packages/web/vite.config.ts

packages/web/src/routes/initiatives/$id.tsx

autoCodeSplitting: true on TanStackRouterVite plugin — automatic route splitting without manual .lazy.tsx files

PlanTasksFetcher onTasks moved to useEffect to prevent setState-during-render loops

autoCodeSplitting handles route chunk boundaries automatically — no manual lazy route files needed

3min

2026-02-05

Phase 21 Plan 05: Code Splitting & Data-Fetching Performance Summary

Route-based code splitting and PlanTasksFetcher render loop optimization

Performance

Duration: 3 min
Started: 2026-02-05
Completed: 2026-02-05
Tasks: 2
Files modified: 2

Accomplishments

Enabled autoCodeSplitting: true on TanStackRouterVite plugin, splitting monolithic 582 KB bundle into route-level chunks
Main vendor chunk reduced to 454 KB (below 500 KB warning threshold)
Route chunks: initiative detail (~13 KB), inbox (~13 KB), dashboard (~65 KB), dialog (~38 KB)
Fixed PlanTasksFetcher calling onTasks during render, moved to useEffect with proper dependency array

Task Commits

Each task was committed atomically:

Task 1: Add route-based code splitting via TanStack Router lazy routes - 1530d7a (feat)
Task 2: Optimize PlanTasksFetcher render loop in initiative detail - c66d7ec (fix)

Files Created/Modified

packages/web/vite.config.ts - Added autoCodeSplitting: true to TanStackRouterVite plugin options
packages/web/src/routes/initiatives/$id.tsx - Moved onTasks callback from render body to useEffect in PlanTasksFetcher

Decisions Made

Used autoCodeSplitting: true instead of manual .lazy.tsx file convention — the plugin handles splitting automatically
PlanTasksFetcher data flow changed from synchronous render-time callback to useEffect-based callback

Deviations from Plan

None - plan executed exactly as written. The autoCodeSplitting option was available in the installed version of @tanstack/router-plugin (^1.158.0), so manual .lazy.tsx splitting was not needed.

Issues Encountered

None

User Setup Required

None - no external service configuration required.

Next Phase Readiness

Plan 21-05 complete, ready for 21-06
Bundle split into multiple route-level chunks
No setState-during-render warnings in PlanTasksFetcher

Phase: 21-polish-integration Completed: 2026-02-05

3.1 KiB Raw Blame History