---
sprint_id: sprint_4
milestone: M1
status: not_started
created_date: 2025-11-05
start_date: 2025-11-06
target_end_date: 2025-11-20
---

# Sprint 4: Story Feature Implementation - UX-Driven Development

**Milestone**: M1 - Core Project Module (User Experience Enhancement)
**Goal**: Implement Story detail page and enhanced Story creation workflows based on comprehensive UX design specifications to provide users with a seamless Epic → Story → Task experience.

## Sprint Context

**Background**:
Following the completion of M1 core backend features (Sprint 1-2) and frontend quality improvements (Sprint 3), UX team delivered comprehensive Story management design specifications on 2025-11-05. The design focuses on consistency with existing Epic pages while introducing innovative Quick Add and enhanced Kanban workflows.

**Current Problem**:
1. **Story detail page does not exist** - Clicking Story cards leads to 404 error
2. **No Story creation from Kanban** - Users cannot create Stories directly from Epic cards
3. **Limited Story form** - Missing acceptance criteria, assignee, and tags fields

**UX Design Documents**:
- Complete specification: `docs/designs/STORY_UX_UI_DESIGN.md` (1,409 lines)
- Summary: `docs/designs/STORY_DESIGN_SUMMARY.md` (488 lines)
- Design phase: 5 phases over 5 weeks

## Diagnosis Report

### Backend Status ✅

**Story API**: 100% Complete
- Controller: `StoriesController.cs` with 6 endpoints
- CQRS: Full Create/Update/Delete/Assign commands
- Queries: GetStoryById, GetStoriesByEpicId, GetStoriesByProjectId
- Multi-tenant: Security verified (Day 15-16)
- Authorization: `[Authorize]` attribute present

**Endpoints Available**:
```
GET    /api/v1/stories/{id}                   - Get Story by ID
GET    /api/v1/epics/{epicId}/stories         - List Epic Stories
GET    /api/v1/projects/{projectId}/stories   - List Project Stories
POST   /api/v1/stories                        - Create Story
POST   /api/v1/epics/{epicId}/stories         - Create Story (nested)
PUT    /api/v1/stories/{id}                   - Update Story
DELETE /api/v1/stories/{id}                   - Delete Story
PUT    /api/v1/stories/{id}/assign            - Assign Story
```

### Frontend Status ⚠️ (Partial)

**✅ Already Implemented**:
1. **Story API Client** (`lib/api/pm.ts`)
   - All CRUD operations: list, get, create, update, delete
   - Status change and assign methods
   - Fully typed with TypeScript

2. **Story Hooks** (`lib/hooks/use-stories.ts`)
   - `useStories(epicId)` - List stories by epic
   - `useProjectStories(projectId)` - List all project stories
   - `useStory(id)` - Get single story
   - `useCreateStory()`, `useUpdateStory()`, `useDeleteStory()`
   - `useChangeStoryStatus()`, `useAssignStory()`
   - Optimistic updates with React Query

3. **Story Form Component** (`components/projects/story-form.tsx`)
   - Create and Edit modes
   - Fields: epicId, title, description, priority, estimatedHours
   - Form validation with Zod
   - Parent Epic selector
   - **Missing**: Acceptance criteria, assignee selector, tags

4. **Story Display in Epic Detail** (`app/(dashboard)/epics/[id]/page.tsx`)
   - Stories list in Epic detail page
   - Story cards with status and priority badges
   - Edit and Delete buttons
   - Create Story dialog
   - **Working**: Story creation and editing from Epic page

5. **Story Types** (`types/project.ts`)
   - Full Story interface defined
   - CreateStoryDto and UpdateStoryDto types
   - All fields properly typed

**❌ Missing Implementation**:
1. **Story Detail Page** - `app/(dashboard)/stories/[id]/page.tsx` does not exist
   - No route configured
   - No Story detail UI
   - Cannot view Story details, Tasks, or Activity

2. **Task Management in Story** - No Task UI components
   - No Task list component
   - No Task creation from Story
   - No Task status updates

3. **Story Quick Add** - No inline creation flow
   - Only full dialog form exists
   - Missing rapid Story creation workflow

4. **Kanban Story Creation** - No Epic card Story creation
   - Cannot add Stories from Kanban
   - Missing contextual creation

5. **Activity Timeline** - No change history component
   - Missing audit log display
   - No real-time activity feed

6. **Enhanced Story Form** - Missing UX fields
   - No acceptance criteria field
   - No assignee selector
   - No tags/labels support

### Gap Analysis Summary

| Feature | Backend | Frontend | Gap |
|---------|---------|----------|-----|
| Story CRUD | ✅ 100% | ✅ 100% | None |
| Story Detail Page | ✅ API Ready | ❌ Missing | **CRITICAL** |
| Task Management | ✅ API Ready | ❌ Missing | **HIGH** |
| Quick Add Story | ✅ API Ready | ❌ Missing | **MEDIUM** |
| Kanban Story Create | ✅ API Ready | ❌ Missing | **MEDIUM** |
| Activity Timeline | ⚠️ Partial | ❌ Missing | **LOW** |
| Acceptance Criteria | ❌ No field | ❌ Missing | **MEDIUM** |
| Assignee Selector | ✅ API Ready | ❌ Missing | **MEDIUM** |

**Priority Assessment**:
- **P0 (Critical)**: Story Detail Page + Task List - Users cannot access Stories
- **P1 (High)**: Enhanced Story Form + Quick Add - Incomplete user experience
- **P2 (Medium)**: Kanban enhancements + Activity Timeline - Nice to have features

## Sprint Objectives

1. **Story Detail Page** - Enable users to view and manage Story details with full Task support
2. **Enhanced Story Form** - Add missing UX fields (acceptance criteria, assignee, tags)
3. **Quick Add Workflow** - Implement rapid Story creation inline form
4. **Task Management** - Build Task list, creation, and status update UI
5. **Kanban Enhancement** - Add contextual Story creation from Epic cards (optional)

## Implementation Strategy

### Phase-Based Approach (5 Phases from UX Design)

**Our Sprint**: Focus on **Phase 1 + Phase 2** (Weeks 1-2)
- Phase 1: Core Story Detail (Week 1) - P0 Critical
- Phase 2: Story Creation & Editing (Week 2) - P1 High
- Phase 3-5: Deferred to future sprints

**Rationale**:
- Deliver immediate value (fix Story page 404 error)
- Iterative approach reduces risk
- Align with UX design phasing
- Team can gather feedback before Phase 3-5

### Reuse Epic Pattern Strategy

**Key Insight**: Story detail page is 85% similar to Epic detail page
- Epic page: `app/(dashboard)/epics/[id]/page.tsx` (534 lines)
- Epic form: `components/epics/epic-form.tsx`
- Epic hooks: `lib/hooks/use-epics.ts`

**Reuse Plan**:
1. Copy Epic detail page structure → Story detail page
2. Adapt Epic form enhancements → Story form
3. Reuse Epic card patterns → Story card component
4. Copy Epic status/priority logic → Story metadata

**Benefits**:
- **Consistency**: Visual and interaction consistency
- **Speed**: 50-60% faster development (reuse code)
- **Quality**: Proven patterns, fewer bugs
- **Maintenance**: Shared components easier to maintain

## Stories

- [ ] [story_1](sprint_4_story_1.md) - Story Detail Page Foundation - `not_started` - **P0 Critical** - 3 days
- [ ] [story_2](sprint_4_story_2.md) - Task Management in Story Detail - `not_started` - **P0 Critical** - 2 days
- [ ] [story_3](sprint_4_story_3.md) - Enhanced Story Form - `not_started` - **P1 High** - 2 days
- [ ] [story_4](sprint_4_story_4.md) - Quick Add Story Workflow - `not_started` - **P1 High** - 2 days
- [ ] [story_5](sprint_4_story_5.md) - Story Card Component - `not_started` - **P2 Medium** - 1 day
- [ ] [story_6](sprint_4_story_6.md) - Kanban Story Creation Enhancement - `not_started` - **P2 Medium** - 2 days (Optional)

**Progress**: 0/6 stories, 0/30+ tasks completed (0%)

## Sprint Scope Summary

### Story 1: Story Detail Page Foundation ⭐ CRITICAL
**Estimated**: 3 days (Day 1-3)
**Owner**: Frontend Team
**Dependencies**: None (API ready)

**Scope**:
- Create `app/(dashboard)/stories/[id]/page.tsx` route
- Implement two-column layout (main content + metadata sidebar)
- Display Story header (title, status, priority badges)
- Show Story description and metadata (assignee, time, dates)
- Display parent Epic card in sidebar
- Add Edit and Delete actions
- Error handling (404, network errors)
- Loading states with skeleton loaders

**Acceptance Criteria**:
- Clicking Story card navigates to `/stories/{id}` page
- Page displays all Story information
- Layout matches Epic detail page consistency
- Responsive design works on mobile/tablet/desktop
- All actions (Edit, Delete) work correctly
- Loading and error states display properly

**Deliverables**:
- Story detail page component
- Story metadata sidebar component
- Story header component
- Route configuration

---

### Story 2: Task Management in Story Detail ⭐ CRITICAL
**Estimated**: 2 days (Day 3-4)
**Owner**: Frontend Team
**Dependencies**: Story 1 (Story detail page must exist)

**Scope**:
- Create Task list component with expandable Task cards
- Implement Task checkbox for quick status toggle
- Add "Add Task" button and inline creation form
- Display Task metadata (priority, assignee, estimated hours)
- Implement Task filtering (status, priority, assignee)
- Add Task sorting options
- Show Task count badge in header
- Empty state when no Tasks exist

**Acceptance Criteria**:
- Tasks display in Story detail page
- Users can create new Tasks inline
- Clicking Task checkbox updates status
- Task filters and sorting work correctly
- Task count updates in real-time
- Empty state shows helpful guidance
- Task creation form validates inputs

**Deliverables**:
- `components/projects/task-list.tsx`
- `components/projects/task-card.tsx`
- `components/projects/task-form.tsx` (inline variant)
- Task hooks integration

---

### Story 3: Enhanced Story Form
**Estimated**: 2 days (Day 5-6)
**Owner**: Frontend Team
**Dependencies**: None (independent enhancement)

**Scope**:
- Add Acceptance Criteria field (checkbox list)
- Implement Assignee selector (searchable dropdown)
- Add Tags/Labels field (multi-select)
- Add Story Points field (optional)
- Enhance form validation
- Add form field descriptions
- Improve form layout (two-column grid)
- Add "Save Draft" functionality (optional)

**Acceptance Criteria**:
- Form includes all new fields
- Assignee selector shows user list
- Acceptance criteria can be added/removed dynamically
- Tags support multi-select
- Form validation works for all fields
- Form saves correctly with new fields
- Backward compatible with existing Stories

**Deliverables**:
- Enhanced `components/projects/story-form.tsx`
- Assignee selector component
- Acceptance criteria editor component
- Tag selector component

---

### Story 4: Quick Add Story Workflow
**Estimated**: 2 days (Day 7-8)
**Owner**: Frontend Team
**Dependencies**: Story 3 (enhanced form patterns)

**Scope**:
- Create inline Story form component (Quick Add variant)
- Add "+ Quick Add" button at top of Stories list
- Implement minimal form (title + priority only)
- Add keyboard shortcut (Cmd/Ctrl + N)
- Auto-reset form after creation
- Add "Add & Create Tasks" button
- Implement form animations
- Show success toast notifications

**Acceptance Criteria**:
- Quick Add button appears in Epic detail Stories section
- Inline form shows with minimal fields
- Story creates on Enter key press
- Form resets and stays open for batch creation
- Keyboard shortcut works globally
- "Add & Create Tasks" navigates to Story detail
- Animations smooth and performant

**Deliverables**:
- `components/projects/quick-add-story.tsx`
- Story form "quick mode" variant
- Keyboard shortcut handler
- Batch creation workflow

---

### Story 5: Story Card Component
**Estimated**: 1 day (Day 9)
**Owner**: Frontend Team
**Dependencies**: Story 1, 2 (understand Story structure)

**Scope**:
- Create reusable Story card component
- Implement three variants (list, kanban, compact)
- Add visual states (hover, selected, dragging)
- Show Story metadata badges
- Add quick actions menu (Edit, Delete, Duplicate)
- Implement card hover effects
- Add Task count indicator
- Support drag-and-drop preparation

**Acceptance Criteria**:
- Story card works in all three variants
- Visual states display correctly
- Quick actions appear on hover
- Card shows all relevant metadata
- Component is reusable across views
- Performance optimized with React.memo
- TypeScript types fully defined

**Deliverables**:
- `components/projects/story-card.tsx`
- Story card Storybook stories (optional)
- Card visual state tests

---

### Story 6: Kanban Story Creation Enhancement (Optional)
**Estimated**: 2 days (Day 10-11)
**Owner**: Frontend Team
**Dependencies**: Story 1, 4 (Story detail + Quick Add patterns)
**Status**: Optional (stretch goal)

**Scope**:
- Add "+ Add Story" button to Epic cards on hover
- Implement inline Story form below Epic card
- Context-bound Story creation (Epic pre-selected)
- Add Story to correct Kanban column by status
- Implement form slide-in animation
- Add "Cancel" and outside-click close
- Update Epic Story count in real-time

**Acceptance Criteria**:
- Hover Epic card shows "+ Add Story" action
- Clicking opens inline Story form
- Form creates Story under correct Epic
- Story appears in appropriate Kanban column
- Epic Story count updates immediately
- Animation smooth and intuitive
- Can cancel or close form easily

**Deliverables**:
- Enhanced Kanban Epic card component
- Inline Story form integration
- Kanban Story creation workflow
- Real-time count updates

---

## Timeline

**Week 1 (Nov 6-8)**: Core Story Detail - P0 Critical
- Day 1-2: Story 1 - Story Detail Page Foundation (Tasks 1-4)
- Day 3: Story 2 - Task Management (Tasks 1-3)

**Week 2 (Nov 11-15)**: Enhanced Creation Workflows - P1 High
- Day 4: Story 2 - Task Management Complete (Tasks 4-6)
- Day 5-6: Story 3 - Enhanced Story Form (Tasks 1-6)
- Day 7-8: Story 4 - Quick Add Workflow (Tasks 1-5)

**Week 3 (Nov 18-20)**: Polish & Optional Features - P2 Medium
- Day 9: Story 5 - Story Card Component (Tasks 1-4)
- Day 10-11: Story 6 - Kanban Enhancement (Optional)

## Definition of Done

- [ ] All P0 and P1 stories completed (Stories 1-4)
- [ ] Story detail page accessible and fully functional
- [ ] Users can create and manage Tasks within Stories
- [ ] Enhanced Story form includes all UX-designed fields
- [ ] Quick Add workflow enables rapid Story creation
- [ ] All acceptance criteria met for completed stories
- [ ] TypeScript types updated for new fields
- [ ] No console errors or warnings
- [ ] Manual testing passed on Chrome/Firefox/Edge
- [ ] Mobile responsive design verified
- [ ] Code reviewed and approved
- [ ] Documentation updated

## Success Metrics

### User Experience Metrics
- **Story Page Load Time**: < 1 second (per UX design target)
- **Task Creation Time**: < 20 seconds (per UX design target)
- **Quick Add Speed**: < 30 seconds (per UX design target)
- **Navigation Clicks**: Epic → Task in < 3 clicks (per UX design)
- **Error Rate**: < 5% (per UX design)

### Code Quality Metrics
- **TypeScript Coverage**: 100% (no `any` types)
- **Component Reusability**: >= 80% (reuse Epic patterns)
- **Performance**: Lighthouse score >= 90 (per Sprint 3 standard)
- **Accessibility**: WCAG 2.1 Level AA compliance (per UX design)

### Completion Metrics
- **P0 Stories**: 2/2 completed (100%) - Story 1, 2
- **P1 Stories**: 2/2 completed (100%) - Story 3, 4
- **P2 Stories**: 1-2/2 completed (50-100%) - Story 5, 6 (optional)
- **Overall Sprint**: 4/6 stories minimum (67%), 6/6 ideal (100%)

## Dependencies

**Prerequisites**:
- ✅ Sprint 1 completed (Frontend Integration)
- ✅ Sprint 2 completed (M1 Backend Features)
- ✅ Sprint 3 completed (Frontend Code Quality)
- ✅ Story API 100% ready (StoriesController)
- ✅ Task API 100% ready (TasksController)
- ✅ UX design complete (STORY_UX_UI_DESIGN.md)

**Technical Requirements**:
- Next.js 15+ (already configured)
- React 19+ (already configured)
- React Query 4.0+ (already configured)
- shadcn/ui components (already available)
- @dnd-kit/core for drag-drop (already installed)

## Risks & Mitigation

### Risk Matrix

| Risk ID | Description | Impact | Probability | Mitigation | Owner |
|---------|-------------|--------|-------------|------------|-------|
| RISK-001 | Task API not fully tested | High | Medium | Backend team verify Task endpoints Day 1 | Backend Lead |
| RISK-002 | Story/Task relationship complexity | Medium | Medium | Reuse Epic/Story pattern, early testing | Frontend Dev |
| RISK-003 | UX design phase 1-2 scope too large | High | Low | Focus on P0/P1 only, defer P2 | Product Manager |
| RISK-004 | Acceptance criteria backend missing | Medium | High | Defer to future sprint if needed | Product Manager |
| RISK-005 | Mobile responsive layout challenging | Medium | Medium | Test early and often on mobile devices | Frontend Dev |

## Related Documents

### UX Design Documents
- [Story UX/UI Design Specification](../designs/STORY_UX_UI_DESIGN.md)
- [Story Design Summary](../designs/STORY_DESIGN_SUMMARY.md)

### Planning Documents
- [Product Roadmap](../../product.md)
- [Sprint 1 Plan](sprint_1.md) - Frontend Integration
- [Sprint 2 Plan](sprint_2.md) - M1 Backend Features
- [Sprint 3 Plan](sprint_3.md) - Frontend Code Quality

### Technical References
- [ProjectManagement Module](../../colaflow-api/src/ColaFlow.Modules.ProjectManagement/)
- [Epic Detail Page](../../colaflow-web/app/(dashboard)/epics/[id]/page.tsx)
- [Story Types](../../colaflow-web/types/project.ts)

## Notes

### Why This Sprint Matters

**For Users**:
- **Fix Critical Bug**: Story links currently lead to 404 errors
- **Complete User Journey**: Epic → Story → Task navigation works end-to-end
- **Faster Workflows**: Quick Add enables rapid Story creation
- **Better Planning**: Acceptance criteria and assignee tracking

**For Product**:
- **UX Design Implementation**: Deliver on comprehensive UX specification
- **Feature Parity**: Story management on par with Epic management
- **User Satisfaction**: Fix reported user complaints about Story access
- **M1 Enhancement**: Improve core project management experience

**For Development**:
- **Reuse Patterns**: 60% code reuse from Epic implementation
- **Consistency**: Maintain design system consistency
- **Quality**: Build on Sprint 3 quality improvements
- **Foundation**: Enable future Phase 3-5 UX enhancements

### Story vs Epic Differences

**Key Distinctions**:
1. **Stories have Tasks**, Epics have Stories
2. **Stories are smaller**, typically 1-2 week effort
3. **Stories have acceptance criteria**, Epics have high-level goals
4. **Stories assignable to individuals**, Epics to teams
5. **Stories more granular tracking**, Epics high-level progress

**Implementation Impact**:
- Story detail shows **Task list** (not Story list)
- Story form includes **acceptance criteria** field
- Story cards show **Task count** (not Story count)
- Story hierarchy: Epic → **Story** → Task

### Backend API Verification Checklist

Frontend team should verify these before Day 1:
- [ ] GET /api/v1/stories/{id} returns Story with all fields
- [ ] GET /api/v1/stories/{id}/tasks returns Task list
- [ ] POST /api/v1/tasks with storyId creates Task correctly
- [ ] PUT /api/v1/stories/{id} accepts all fields (title, description, priority, etc.)
- [ ] DELETE /api/v1/stories/{id} cascades to Tasks
- [ ] Multi-tenant isolation works (cannot access other tenant Stories)

### Future Enhancements (Post-Sprint 4)

**Phase 3 (Future Sprint)**: Task Management Enhancements
- Task drag-and-drop reordering
- Task bulk operations (multi-select)
- Task filters advanced (custom queries)
- Task due dates and reminders

**Phase 4 (Future Sprint)**: Kanban Full Integration
- Story cards in Kanban (alongside Epic cards)
- Story drag-and-drop to change status
- Story grouping options
- Story swimlanes

**Phase 5 (Future Sprint)**: Polish & Accessibility
- Keyboard shortcuts (Cmd/Ctrl + N, 1-4 for status, etc.)
- Screen reader ARIA labels
- Mobile swipe gestures
- Activity timeline component
- Performance optimization

---

**Created**: 2025-11-05 by Product Manager Agent
**Next Review**: 2025-11-13 (mid-sprint checkpoint)
**Sprint Duration**: 3 weeks (15 working days)
**Target Completion**: 2025-11-20
**Minimum Viable**: 2025-11-15 (P0/P1 only, 10 days)
