Sprint Report: ugc-platform-003
Generated: 2026-04-23
Architecture: Planner-Generator-Evaluator (Harness Design v4)
PRD: UGC Platform Phase 3 — 소셜 & 알림
Executive Summary
UGC Platform Phase 3 (소셜 & 알림) 스프린트가 11/13 AC 충족 (85%) + 2 PRs 생성 + 2 consecutive first-try PASS (Group 002 + 003) 로 완료. ugc-platform-002 대비 major issues 10→3 (-70%), avg_fix_cycles 0.67→0.50. 미충족 2건은 모두 partial (AC 6.2 nickname sort — technical_limit / AC 7.4 PA 추천 — dependency).
PRD Coverage
| User Story |
AC 수 |
충족 |
부분 충족 |
미충족 |
| US5 알림/푸시 |
5 |
5 |
0 |
0 |
| US6 팔로우 |
3 |
2 |
1 |
0 |
| US7 차단/신고 |
5 |
4 |
1 |
0 |
| 합계 |
13 |
11 |
2 |
0 |
Fulfillment Rate: 85% (11/13 AC)
Build Results
| Group |
Feature |
BE Tasks |
App Tasks |
Eval Result |
Fix Loops |
| 001 |
Follow (US6) |
be-001 |
app-001, app-002 |
PASS R2 |
1 |
| 002 |
Block & Report (US7) |
be-002, be-003 |
app-003, app-004, app-005 |
PASS R1 (first-try) |
0 |
| 003 |
Notification BE (US5) |
be-004, be-005, be-006, be-007 |
— |
PASS R1 (first-try) |
0 |
| 004 |
Notification App (US5) |
— |
app-006, app-007, app-008 |
PASS R2 |
1 |
Quality Metrics
| Metric |
ugc-platform-003 |
ugc-platform-002 |
Delta |
| total_groups |
4 |
3 |
+1 |
| first_pass_rate |
0.50 |
0.33 |
+0.17 |
| avg_fix_cycles |
0.50 |
0.67 |
-0.17 |
| critical_issues_found |
0 |
0 |
0 |
| major_issues_found |
3 |
10 |
-7 |
| minor_issues_found |
14 |
14 |
0 |
| fulfillment_rate |
0.85 |
1.00 |
-0.15 (new AC only; 2 partial) |
| amendments |
0 (P3 skip) |
2 |
— |
| new_patterns |
7 |
6 |
+1 |
Note: fulfillment drop 은 AC 6.2 (nickname sort technical_limit) + AC 7.4 (PA 추천 dependency) 이 부분 충족인 것만 반영. 구현한 모든 새 AC 는 100% 충족.
Issues Found by Evaluator
Critical
없음.
Major (3건, 전부 fix loop 에서 해소)
| Group |
# |
Issue |
Root Cause |
Resolution |
Commit |
| 001 |
M1 |
Cursor 규약 이탈 — truncated[last-shown] vs page[limit] extra item |
spec_ambiguity |
extra item pattern (reference: me-contents-app.service.ts:buildLikedListResponse) |
be 476364e3 |
| 001 |
M2 |
E2E appId inconsistency (io.wrtn.meme vs com.wrtn.zzem.dev canonical) |
scope_creep |
2 yaml 교체 + appId uniformity grep gate |
app a1ae7ca18 |
| 004 |
M1 |
Test assertion hardcoded literal vs notificationQueryKey drift |
spec_ambiguity |
typed import from ~/data/notification |
app af6aa8125 |
Minor (14건, 전부 retrospective 이월 — 비차단)
- Group 001 (4건): nickname ASC sort TODO, persona nickname fallback 주석, Contract UserPublicProfile deviation, follow-button-tap seed drift.
- Group 002 (4건): transaction rollback integration test, BlockRelationPort DI 단일화, BlockedProfileState copy UX, report filter recency window.
- Group 003 (3건): shouldPush vs shouldNotify helper 통합 (KB 승격 후보), Payback batch integration test, Notification.paybackBucket admin 노출.
- Group 004 (3건): foreground malformed-fallback test,
?? 0 render gate vs fallback, HomeHeaderBellButton location guideline.
Systemic Patterns
Pattern-digest 7 건 (상세 retrospective/pattern-digest.yaml):
- Cursor encoding semantic 이탈 (correctness, M1 G1): formal grep gate (
$lt) 외에 reference 파일 경로 명시 필요. KB correctness-004 확장 후보.
- E2E appId inconsistency (completeness, M2 G1): grep gate (
rg '^appId:' e2e/flows | sort -u | wc -l → 1) 표준화.
- Test assertion drift (completeness, M1 G4): production 상수 복제 금지, typed import 강제. skill_candidate.
- BlockRelationPort dual-provider (integration, Minor G2): circular DI 회피 pragmatic dual-provider pattern 허용 + 주석 의무.
- Pragmatic display fallback 주석 convention (code_quality):
// Why: 주석 category (persona-display / render-gate / contract-compliance).
- Settings gate single SOT (integration, Minor G3): shouldNotify (persist) + shouldPush (push) 2-layer. integration-002 확장 KB 승격 후보.
- Slot-based composition (integration): ComingSoonSettingsSection topSlot/middleSlot additive. skill_candidate.
Deliverables
Code
| Repository |
Branch |
Base |
Files |
Lines |
| wrtn-tech/wrtn-backend |
sprint/ugc-platform-003 |
apple |
116 |
+6864/-61 |
| wrtn-tech/app-core-packages |
sprint/ugc-platform-003 |
epic/ugc-platform-final |
112 |
+4911/-53 |
New Modules (backend)
domain/user-follow/, persistence/user-follow/, application/user-follow/, controller/user-follow/, domain/user-block/, persistence/user-block/, application/user-block/, controller/user-block/, domain/content-report/, persistence/content-report/, application/content-report/, controller/content-report/, domain/notification/, persistence/notification/, application/notification/, controller/notification/, controller/notification-setting/ + common/constant/notification.constant.ts.
New Screens / Components (app)
Screens: FollowerListScreen, FollowingListScreen, BlockManagementScreen, NotificationCenterScreen, NotificationSettingsScreen.
Components: FollowButton, FollowUserRow, BlockConfirmSheet, UnblockConfirmSheet, BlockedProfileState, BlockUserRow, ContentReportBottomSheet, HomeHeaderBellButton, NotificationListItem, PushPermissionBanner, NotificationEmptyState, NotificationToggleRow.
Handler 확장: usePushNotificationHandler (LIKE/FOLLOW/PAYBACK) + parsePushPayload helper.
API Contract
11 endpoint 신규 + 1 response extension (/v2/users/{userId}/profile → isBlocked 필드).
경로: sprint-orchestrator/sprints/ugc-platform-003/contracts/api-contract.yaml.
Sprint Artifacts
- 4 Sprint Contracts (group-00{1,2,3,4}.md) signed + Evaluator R1/R2 review
- 4 Evaluation reports (evaluations/group-00{1,2,3,4}.md)
- 6 Phase + 4 Group checkpoints (checkpoints/)
- 15 task specs (tasks/backend/.md, tasks/app/.md)
- E2E artifacts: 9 new yaml flows + 1 e2e-flow-plan.md + 1 e2e-seed-plan.md
PR Links
Improvements for Next Sprint
| Priority |
Improvement |
Source |
| high |
Cursor Contract 조항에 reference 파일 경로 명시 (KB correctness-004 확장) |
pattern_digest |
| high |
E2E appId uniformity grep gate 표준화 |
pattern_digest |
| high |
테스트 파일 typed import 강제 (production 상수 literal 복제 금지) |
pattern_digest |
| high |
Manual QA carryover 종결 (AC-2.3, AC-7.4 Phase 1 — 3 스프린트 연속 pending) |
user_feedback |
| medium |
settings/permission gate single SOT (shouldNotify / shouldPush helper 2-layer) |
evaluator_suggestion |
| medium |
Shared component slot-based composition 패턴 표준화 |
pattern_digest |
| low |
Phase 3 Prototype auto-skip 정책 follow-up 스프린트에서 표준화 |
pattern_digest |
Timeline
| Phase |
소요 (approx) |
Notes |
| Phase 1 — Init (follow-up) |
~10m |
Sprint Lead solo, worktree setup |
| Phase 2 — Spec |
~90m |
15 task files + api-contract + e2e-flow/seed-plan + evaluation criteria. 5 parallel agent dispatches (3 succeeded, 2 API errors — 파일 8개 Sprint Lead 직접 작성) |
| Phase 3 — Prototype |
auto-skip |
no ### Screens / Components header + no DESIGN.md |
| Phase 4 — Build |
~4h |
4 groups loop. 15 engineers + 4 evaluators. 2 fix loops. |
| Phase 5 — PR |
~15m |
rebase no-op + push + PR create (skip E2E full suite, manual QA checklist) |
| Phase 6 — Retrospective |
~20m |
gap-analysis + pattern-digest + deferred + REPORT + KB write |
Next Action Recommendation
Fulfillment = 0.85, partial 2 건 (모두 small + technical_limit/dependency). 시스템적 개선 (slot composition, test-import, cursor reference, settings single SOT) 은 별도 후속 스프린트 또는 --continue 로 처리 가능.
- Option A (권장): PR 머지 우선 + 수동 QA (Phase 1 carryover 3건 + 이번 스프린트 manual QA 체크리스트). AC 6.2 nickname sort 는 다음 스프린트 small task 로
--continue.
- Option B: 후속 스프린트
--follow-up=ugc-platform-003 생성하여 Minor 14건 + nickname sort + PA 추천 연동 확인을 포함. KB 승격 후보 (completeness-008 3번째 관측, integration-002 확장) 도 스프린트 시작 시 contract clause 로 반영.
직전 이월 (Phase 1 manual QA) 해소를 위해 Option A + 작은 --continue 조합 권장.