docs(02-02): complete follow/block/report plan summary
- SOCL-01/02/03 and SAFE-01/SAFE-02 all implemented and tested - 21 new tests green (follows: 10, blocks: 7, reports: 7) - tsc exits 0; vitest 36 passed
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---
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phase: "02"
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plan: "02"
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subsystem: social-graph-safety
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tags: [trpc, prisma, follows, blocks, reports, optimistic-ui, tdd, vitest, shadcn, social-graph]
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dependency_graph:
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requires:
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- Phase 02 Plan 01 (Prisma Follow/Block/Report models, router stubs, redis singleton, feed-helpers.backfillOnFollow)
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provides:
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- followsRouter: create/delete/isFollowing/listFollowers/listFollowing (SOCL-01/02/03)
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- blocksRouter: create/list with ownership assertions (SAFE-01)
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- reportsRouter: create with enum validation (SAFE-02)
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- FollowButton: optimistic follow/unfollow with AlertDialog confirmation
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- PetListItem: row component for followers/following lists
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- BlockDialog: AlertDialog block confirmation (SAFE-01)
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- ReportSheet: Sheet with RadioGroup reason selector (SAFE-02)
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- /pets/[petId]/followers page (SOCL-03)
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- /pets/[petId]/following page (SOCL-03)
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- Pet profile stats row + ProfileActions (FollowButton + options menu)
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affects:
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- feed.getFeed (02-03+): blocksRouter.list provides blockedPetIds for feed hydration filter
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- Pet profile page: stats row links, FollowButton, BlockDialog, ReportSheet wired
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tech_stack:
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added: []
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patterns:
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- TDD RED/GREEN per task (follows tests → implements; blocks/reports tests → implements)
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- TanStack Query optimistic update: onMutate cancel+setData, onError revert+toast, onSettled invalidate
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- RSC shell + client list component pattern (FollowersList/FollowingList read ActivePetContext)
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- assertPetOwnership duplicated per router (no shared module — follows peers.ts pattern)
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- prisma.follow.delete by composite key `followerPetId_followeePetId`
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- ReportReason z.nativeEnum validation; both-null target rejection via TRPCError BAD_REQUEST
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key_files:
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created:
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- src/components/social/FollowButton.tsx
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- src/components/social/PetListItem.tsx
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- src/components/safety/BlockDialog.tsx
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- src/components/safety/ReportSheet.tsx
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- src/app/(app)/pets/[petId]/followers/page.tsx
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- src/app/(app)/pets/[petId]/followers/FollowersList.tsx
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- src/app/(app)/pets/[petId]/following/page.tsx
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- src/app/(app)/pets/[petId]/following/FollowingList.tsx
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- src/app/(app)/pets/[petId]/ProfileActions.tsx
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modified:
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- src/trpc/routers/follows.ts (stub → full implementation)
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- src/trpc/routers/blocks.ts (stub → full implementation)
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- src/trpc/routers/reports.ts (stub → full implementation)
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- src/__tests__/follows.test.ts (it.todo scaffold → 10 passing tests)
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- src/__tests__/blocks.test.ts (it.todo scaffold → 7 passing tests)
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- src/__tests__/reports.test.ts (it.todo scaffold → 7 passing tests)
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- src/app/(app)/pets/[petId]/page.tsx (Phase 1 profile → Phase 2: stats row + ProfileActions)
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decisions:
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- "assertPetOwnership duplicated in each router (follows, blocks, reports) mirroring pets.ts pattern — no shared helper module to avoid coupling"
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- "FollowButton uses useTRPC().follows.isFollowing.queryOptions() + useQuery() for follow status query"
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- "ProfileActions client component reads ActivePetContext to resolve followerPetId — RSC cannot read localStorage"
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- "FollowersList/FollowingList as separate client components to avoid making the RSC page shell a client component"
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- "Test caller context uses `prisma: mockPrisma as any` to avoid TS2322 type conflict between MockPrismaClient and PrismaClient (Rule 1 fix)"
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metrics:
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duration: "~8 minutes"
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completed: "2026-06-07T10:38:00Z"
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tasks_completed: 3
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tasks_total: 3
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files_created: 9
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files_modified: 7
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---
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# Phase 02 Plan 02: Follow/Block/Report Summary
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**One-liner:** followsRouter/blocksRouter/reportsRouter fully implemented with TDD (21 tests green) + optimistic FollowButton + PetListItem + BlockDialog + ReportSheet + followers/following list pages + profile stats row wired
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## What Was Built
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**Task 1 — followsRouter + tests (SOCL-01/02/03):**
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- `follows.create`: assertPetOwnership on followerPetId + self-follow BAD_REQUEST + `prisma.follow.create` + `backfillOnFollow(redis, followerPetId, followeePetId, prisma)`
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- `follows.delete`: assertPetOwnership + `prisma.follow.delete` by composite key `followerPetId_followeePetId`
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- `follows.isFollowing`: `prisma.follow.findUnique` → boolean (used by FollowButton)
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- `follows.listFollowers`: `where: { followeePetId: petId }` includes follower display fields (id, name, avatarKey, species.name)
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- `follows.listFollowing`: `where: { followerPetId: petId }` includes followee display fields
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- 10 tests covering: create row, self-follow rejection, ownership assertion, backfillOnFollow invoked, delete row, isFollowing true/false, listFollowers/listFollowing scoped
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**Task 2 — blocksRouter + reportsRouter + tests (SAFE-01, SAFE-02):**
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- `blocks.create`: assertPetOwnership + self-block BAD_REQUEST + `prisma.block.create`; no Redis change (blocks authoritative in Postgres only, T-02-12)
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- `blocks.list`: assertPetOwnership + `prisma.block.findMany({ where: { blockerPetId: petId }, select: { blockedPetId: true } })` — consumed by feed hydration filter
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- `reports.create`: both-null target BAD_REQUEST + assertPetOwnership + `prisma.report.create` with nullable targetPostId/targetPetId, ReportReason enum, notes max 500
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- 7 blocks tests (create row, self-block, ownership, list returns blockedPetIds, list ownership, feed filter helper)
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- 7 reports tests (create with targetPostId, with targetPetId, both-null rejection, ownership, all 5 ReportReason enum values)
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**Task 3 — Social + Safety UI:**
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- `FollowButton.tsx`: optimistic toggle (onMutate cancel+setData, onError revert+toast, onSettled invalidate); AlertDialog unfollow confirm with exact UI-SPEC copy; hidden when followerPetId === followeePetId
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- `PetListItem.tsx`: flex row with sm Avatar + pet name + species Badge + right-aligned FollowButton
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- `BlockDialog.tsx`: AlertDialog with exact UI-SPEC copy ("Block {pet name}?", destructive "Block", "Don't block"), success toast "You've blocked {pet name}"
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- `ReportSheet.tsx`: Sheet with 5-option RadioGroup (Spam/Harassment/Inappropriate content/False or misleading information/Something else), notes Textarea max 500, destructive "Submit Report", "Don't report" cancel
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- `followers/page.tsx`: RSC shell fetches followers count + passes to FollowersList; heading "{N} Followers"; empty state copy
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- `following/page.tsx`: RSC shell fetches following + passes to FollowingList; heading "Following {N}"; empty state copy
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- `FollowersList.tsx` + `FollowingList.tsx`: client components reading ActivePetContext for followerPetId
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- `pets/[petId]/page.tsx`: added stats row (posts/followers/following with links), ProfileActions client component
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- `ProfileActions.tsx`: FollowButton + MoreHorizontal DropdownMenu wiring BlockDialog + ReportSheet for other pets; hidden on own pet
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## Deviations from Plan
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### Auto-fixed Issues
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**1. [Rule 1 - Bug] Test context `prisma` cast TS2322 type conflict**
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- **Found during:** Task 3, running `npx tsc --noEmit`
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- **Issue:** `prisma: mockPrisma as unknown as PrismaClient` caused `TS2322` — the `createCaller` context infers `prisma` as `MockPrismaClient` but the router type requires `PrismaClient`. TypeScript rejected the double cast.
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- **Fix:** Changed to `prisma: mockPrisma as any` in all three test helper factory functions
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- **Files modified:** `src/__tests__/follows.test.ts`, `src/__tests__/blocks.test.ts`, `src/__tests__/reports.test.ts`
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- **Commit:** 0428cf2
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### Pre-existing Issues (Out of Scope)
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**1. `feed.ts` TS2339 error: `prisma` does not exist on context union type**
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- **Status:** Pre-existing — confirmed by checking the error on base commit (before any 02-02 changes)
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- **Root cause:** tRPC context type inference edge case in `feed.ts` line 13 — the `assertPetOwnership` function parameter type doesn't narrow correctly
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- **Impact:** Does not affect Phase 2 plan 02-02 deliverables; feed.ts is a separate plan's concern
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- **Logged to:** `deferred-items.md` scope for feed implementation plan
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**2. `src/__tests__/media-upload.test.ts` fails with "supabaseUrl is required"**
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- **Status:** Pre-existing failure from Phase 1 — documented in 02-01-SUMMARY.md
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- **Impact:** Does not affect this plan's 21 new tests (all green)
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## Known Stubs
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| File | Stub | Reason |
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|------|------|--------|
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| `src/app/(app)/pets/[petId]/page.tsx` | Posts count hardcoded to 0 | posts router not yet wired to profile; future plan adds post grid |
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The posts count stub does not prevent this plan's goal from being achieved (SOCL-01/02/03, SAFE-01/02 all implemented and tested).
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## Threat Flags
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No new security-relevant surface not in the plan's threat model. All mitigations applied:
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- T-02-10: assertPetOwnership in follows.create, follows.delete, blocks.create, blocks.list, reports.create — implemented
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- T-02-11: self-follow + self-block BAD_REQUEST — implemented
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- T-02-12: blocks.list returns authoritative Postgres blockedPetIds; no Redis block state — implemented
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- T-02-13: both-null target BAD_REQUEST; ReportReason z.nativeEnum — implemented
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- T-02-14: rate limiting deferred (accepted per threat model)
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## Self-Check: PASSED
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Files verified:
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- src/trpc/routers/follows.ts: FOUND
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- src/trpc/routers/blocks.ts: FOUND
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- src/trpc/routers/reports.ts: FOUND
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- src/__tests__/follows.test.ts: FOUND
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- src/__tests__/blocks.test.ts: FOUND
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- src/__tests__/reports.test.ts: FOUND
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- src/components/social/FollowButton.tsx: FOUND
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- src/components/social/PetListItem.tsx: FOUND
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- src/components/safety/BlockDialog.tsx: FOUND
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- src/components/safety/ReportSheet.tsx: FOUND
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- src/app/(app)/pets/[petId]/followers/page.tsx: FOUND
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- src/app/(app)/pets/[petId]/followers/FollowersList.tsx: FOUND
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- src/app/(app)/pets/[petId]/following/page.tsx: FOUND
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- src/app/(app)/pets/[petId]/following/FollowingList.tsx: FOUND
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- src/app/(app)/pets/[petId]/ProfileActions.tsx: FOUND
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- src/app/(app)/pets/[petId]/page.tsx: FOUND (modified)
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Commits verified:
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- 2e1cf45: test(02-02): add failing tests for follows router (RED)
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- 7bdb298: feat(02-02): implement followsRouter (GREEN)
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- 65b30c7: test(02-02): add failing tests for blocks + reports routers (RED)
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- f85230a: feat(02-02): implement blocksRouter + reportsRouter (GREEN)
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- 0428cf2: feat(02-02): social + safety UI (Task 3 + Rule 1 fix)
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