#region RequirementsChecklist [C:2] [TYPE ADR] [SEMANTICS checklist, validation, requirements]
@BRIEF Quality validation checklist for task-status-center spec — verifies no implementation leakage, measurable criteria, edge case coverage, and semantic alignment with superset-tools constitution.

## Spec Quality Audit

### 1. No Implementation Leakage
- [x] Spec does not mention Python module names, FastAPI routes, or Svelte component names
- [x] Spec describes WHAT operators need (aggregation, filtering, real-time updates) — not HOW to implement
- [x] Key entities (Task, TaskSummary, TaskFilter) are described by domain attributes, not by ORM/SQL schema
- [x] No file paths, class names, or code-level constructs
- [x] `ux_reference.md` mentions `TaskCenterModel` and `TaskDrawer` — but these are existing user-facing concepts documented in README.md and ADR-0006, not implementation leaks

### 2. Measurable Success Criteria
- [x] SC-001: Page load time ≤ 1 second (measurable via browser performance API)
- [x] SC-002: WebSocket event-to-DOM latency ≤ 2 seconds (measurable via timestamp comparison)
- [x] SC-003: Task discovery ≤ 3 clicks/actions (measurable via interaction counting)
- [x] SC-004: UI responsiveness at 100+ tasks — 30 fps (measurable via browser Performance Observer)
- [x] SC-005: WebSocket reconnect ≤ 5 seconds (measurable via connection event timestamps)

### 3. Edge Cases & Recovery
- [x] Mass task completion — batch updates without UI freeze
- [x] WebSocket disconnection — reconnect with indicator, stale data marking
- [x] Large history — pagination + server-side filtering, active tasks prioritized
- [x] Unknown task type — graceful display with "Unknown" label
- [x] AWAITING_INPUT state — visual indicator + action button
- [x] RBAC restriction — viewer sees only authorized tasks
- [x] Page navigation and return — filter state persistence
- [x] Empty system — empty state with navigation hints
- [x] Empty filter result — clear filter recovery

### 4. Constitutional Alignment
- [x] **Principle I (Semantic Contract First)**: Spec uses `#region` anchor format; planned Model will carry GRACE contract
- [x] **Principle II (Decision Memory)**: Spec is decision-free space; `@RATIONALE`/`@REJECTED` will be added in plan phase
- [x] **Principle III (External Orchestrator)**: Feature extends existing task infrastructure without modifying Superset internals
- [x] **Principle V (RBAC)**: TSC-FR-009 enforces RBAC on task visibility
- [x] **Principle VI (Svelte 5 Runes)**: `ux_reference.md` references `.svelte.ts` Model with `$state`/`$derived`/`$effect` — compliant
- [x] **ATTN_2 (Hierarchical IDs)**: FRs use `TSC-FR-NNN` prefix; feature header has 2-level domain grouping
- [x] **ATTN_4 (Fractal Boundaries)**: Spec + ux_reference files are each under 150 lines

### 5. Domain Language
- [x] Uses superset-tools terminology: tasks, plugins, Task Drawer, WebSocket, RBAC
- [x] Task types match existing plugin ecosystem: translation, migration, backup, validation, documentation, git, storage, debug, search, mapper, maintenance, clean_release
- [x] Task statuses match existing system: PENDING, RUNNING, SUCCESS, FAILED, AWAITING_INPUT, AWAITING_MAPPING
- [x] UI terminology consistent with existing Russian-language interface

### 6. Unresolved Markers
- [x] Zero `[NEEDS CLARIFICATION]` markers — all product decisions made with informed defaults
- [x] No unresolved dependencies on future ADRs

### 7. Coverage Summary
| Area | Stories | FRs | Edge Cases | Recovery Paths |
|------|---------|-----|------------|----------------|
| Summary dashboard | US1 | FR-001, FR-002 | Mass completion, disconnected | Reconnect, manual refresh |
| Filtered task list | US2 | FR-003, FR-004, FR-010 | Large history, unknown type | Pagination, reset filters |
| Task drill-down | US3 | FR-005, FR-006, FR-007 | AWAITING_INPUT | Open Drawer, scroll to error |
| RBAC & security | — | FR-009 | No permissions | Graceful omission |
| Real-time updates | — | FR-002, FR-008 | WS disconnect | Auto-reconnect, indicator |
| **Totals** | **3 stories** | **10 FRs** | **7 edge cases** | **6 recovery paths** |

## Validation Result

**STATUS**: ✅ PASSED — Ready for `/speckit.clarify` or `/speckit.plan`

All checks passed. No implementation leakage. Measurable success criteria defined. Edge cases and recovery paths are explicit. All FRs are traceable to at least one user story. No blocking `[NEEDS CLARIFICATION]` markers remain.

#endregion RequirementsChecklist
