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Add audit, roadmap, hardening, and QA docs
Introduce four comprehensive documentation files: AUDIT.md (full-codebase audit with metrics, risks, and top priorities), EXPANSION_ROADMAP.md (prioritized expansion and release milestones), HARDENING_AND_PERFORMANCE.md (performance quick fixes, hardening checklist, scalability plans), and QA_STRATEGY.md (test pyramid, CI gates, and test inventory). These docs (dated 2026-04-16) capture production-readiness actions, timelines, and recommended fixes to move the project from engineering-complete to production-ready.
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‎docs/AUDIT.md‎

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# Taskdeck Comprehensive Audit
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**Date:** 2026-04-16
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**Scope:** Full-stack analysis across architecture, security, performance, testing, CI/CD, documentation, and operational readiness
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**Method:** 8 parallel deep-dive agents + manual codebase review
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---
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## Executive Summary
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Taskdeck is a **mature, well-engineered product** at the end of its core build phase. Phase 4 is 97% complete with ~7,070 automated tests, 30 ADRs, 27 CI workflows, and 338 documentation files across a 160K+ line codebase. The project has transitioned from feature development to platform expansion.
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| Dimension | Rating | Key Strength | Critical Gap |
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|-----------|--------|--------------|-------------|
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| Backend Architecture | 9/10 | Clean Architecture enforced by tests | Only 1 EF migration in history |
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| Frontend Architecture | 7/10 | TypeScript 9/10, Routing 9/10 | 3 views >1,500 lines, no error boundary |
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| Test Coverage | 9/10 | 7,070+ tests, property-based, mutation | Some E2E flakiness in extended matrix |
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| Security Posture | 7.5/10 | All 37 controllers authorized, CSP, rate limiting | SSRF gap in webhooks, no RBAC |
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| CI/CD & DevOps | 8/10 | Advanced multi-lane topology with SBOM | No SAST, basic production readiness |
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| Performance | 6.5/10 | Lazy loading, virtual scroll, performance marks | No response compression, missing indexes |
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| Documentation | 8.5/10 | 338 docs, 30 ADRs, user manual, ops runbooks | No config reference, no data model docs |
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| Issue Backlog | 9.5/10 | 96.2% close rate, zero P1 open | Tracker checkboxes stale |
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| **Overall** | **8/10** | **Production-quality engineering** | **Production deployment gaps** |
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---
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## Codebase Metrics
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| Metric | Value |
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|--------|-------|
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| Backend C# source files | 539 (81,359 lines) |
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| Frontend TS/Vue files | 392 (78,712 lines) |
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| API Controllers | 37 |
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| EF Core Migrations | 40 |
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| Architecture Decision Records | 30 |
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| Documentation files | 338 |
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| CI/CD Workflows | 27 |
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| Total automated tests | ~7,070+ |
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| Backend tests | ~4,530+ |
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| Frontend unit tests | ~2,463+ |
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| E2E Playwright scenarios | 61+ |
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| Open GitHub issues | 14 |
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| Closed GitHub issues | 356 |
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| Merged PRs | 452 |
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| TODO/FIXME markers in code | 2 (entire codebase) |
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| `any` usage in TypeScript | 0 in production code (8 in test mocks) |
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---
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## 1. Backend Architecture
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### Strengths
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- **Clean Architecture rigorously enforced** — Architecture tests verify Domain has no Infrastructure/API dependencies, Application cannot depend on API/Infrastructure
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- **Domain model quality** — Private setters, invariant enforcement via domain exceptions, proper aggregate patterns
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- **37 controllers all secured** — `[Authorize]` on every controller except HealthController (by design)
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- **Workers excellent** — Proper `BackgroundService`, graceful cancellation, SemaphoreSlim concurrency, retry with configurable backoff, heartbeat registry
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- **Async patterns correct** — No sync-over-async anywhere except one `WorkspaceService.Result` call
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- **33 repositories** with generic `Repository<T>` base, consistent `AsNoTracking()` for reads
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- **82 database indexes** across all entity configurations
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### Issues
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| Severity | Issue | Location |
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|----------|-------|----------|
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| CRITICAL | Only 1 EF migration in source control — fresh environments cannot bootstrap | `backend/src/Taskdeck.Infrastructure/Migrations/` |
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| CRITICAL | No configuration validation at startup (`ValidateOnStart()`) | `Program.cs`, all settings classes |
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| HIGH | No API versioning strategy — breaking changes have no compatibility path | All controllers |
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| MEDIUM | MCP mode duplicates DI registration from web mode | `Program.cs` lines 72-91 |
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| MEDIUM | No value objects for Email/Username — validation scattered | Domain entities |
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| MEDIUM | No connection timeout or retry policy on DbContext | `DependencyInjection.cs` |
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| LOW | FluentValidation referenced but no validators found | `.csproj` |
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### Production Readiness: 75%
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---
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## 2. Frontend Architecture
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### Strengths
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- **TypeScript: 9/10** — `strict: true`, 0 `any` in production, proper type narrowing, 23 type definition files
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- **Routing: 9/10** — Auth guards, feature flag gates, lazy loading (16 of 18 views), demo mode support
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- **API layer: 8/10** — 25+ focused modules, centralized interceptors, X-Request-Id tracing
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- **Composables: 18 reusable** — keyboard shortcuts, virtual list, performance marks, error mapping, etc.
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- **UI primitives: 17 Td* components** with WAI-ARIA foundation (Reka UI base)
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- **Design tokens** — `--td-*` CSS variable system with Obsidian/Ember theme
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### Issues
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| Severity | Issue | Details |
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|----------|-------|---------|
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| CRITICAL | Views over 1,500 lines | ReviewView (1,659), InboxView (1,527), AutomationChatView (1,523) |
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| CRITICAL | No error boundary | Component render errors crash entire app |
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| HIGH | No request retry/backoff | Network failures not recovered gracefully |
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| HIGH | Modals oversized | StarterPackCatalogModal (1,253), CardModal (681) |
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| HIGH | No responsive design strategy | Only 8 media queries — mobile board view broken |
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| MEDIUM | JWT stored in localStorage | Vulnerable to XSS (mitigated by CSP) |
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| MEDIUM | No loading skeleton consistency | TdSkeleton exists but not used in all views |
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| MEDIUM | No offline mutation queue | Changes made while offline are lost |
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| MEDIUM | Virtual scrolling in only 2 of 16 list views | ReviewView, ActivityView need it |
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| LOW | No session timeout warning | Token expires silently |
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### Production Readiness: 65%
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---
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## 3. Security Posture
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### Strengths
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- **All 37 controllers have `[Authorize]`** — verified by architecture tests
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- **JWT with proper validation** — signature verification, `iat` tracking, token invalidation middleware
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- **BCrypt password hashing** (v4.1.0)
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- **CSP headers** — `script-src 'self'` (no unsafe-inline for scripts), X-Frame-Options DENY
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- **Rate limiting** — 4 policies (auth/IP, hot-path/user, capture-write/user, note-import/user)
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- **OWASP baseline documented** — security headers, rate limiting, dependency policy
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- **GDPR data portability** — full export + account deletion with PII anonymization
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- **MFA available** — TOTP with recovery codes, config-gated
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### Issues
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| Severity | Issue | Impact |
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|----------|-------|--------|
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| HIGH | Dev JWT secret in `appsettings.Development.json` | Violates zero-secrets-in-code principle |
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| HIGH | SSRF not protected for webhook/LLM provider URLs | Could access internal services |
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| HIGH | No encryption at rest for SQLite database | Sensitive data accessible with file access |
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| MEDIUM | No role-based authorization (RBAC) | All authenticated users have equal access |
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| MEDIUM | No vulnerability disclosure policy (`SECURITY.md`) | No responsible disclosure path |
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| MEDIUM | `style-src 'unsafe-inline'` in CSP | Allows inline style injection |
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| MEDIUM | No distributed rate limiting | Multi-instance bypasses in-process limits |
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| MEDIUM | Audit trail retention unbounded | Grows indefinitely |
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| LOW | No OAuth scope validation | Scope claims not checked |
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| LOW | Console.error exposes API error details | DevTools visible |
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### Overall Risk Level: MEDIUM (0 Critical, 3 HIGH, 8 MEDIUM, 5 LOW)
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---
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## 4. Performance & Scalability
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### Current Capacity: ~5-10 MAU (monthly active users)
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### Quick Wins (1-5 hours each)
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| Issue | Impact | Effort |
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|-------|--------|--------|
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| **No response compression** — 5-10MB responses uncompressed | 90% bandwidth reduction | 1 hour |
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| **Missing database indexes** — AuditLog, LlmRequest, Card | 10-100x query speedup on large tables | 1 hour |
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| **Sync I/O in WorkspaceService** — `.Result` blocking async | Prevents thread pool starvation | 30 min |
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| **No pagination on board list** — returns ALL boards | Blocks team-scale (100+ boards) | 2 hours |
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| **AuditLog in-memory filtering** — should be SQL-level | 50ms+ per activity load eliminated | 2 hours |
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### Architectural Bottlenecks
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| Bottleneck | Current State | Scaling Target |
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|------------|--------------|----------------|
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| SQLite single writer | ~20 DAU before visible latency | PostgreSQL migration (ADR-0023 accepted) |
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| Single-process workers | No redundancy, no horizontal scaling | Extract to separate service |
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| No query result caching | Every page load = 5-10 DB queries | Cache capture summary, board lists |
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| Board detail payload | 5-10MB for 1000-card board | Projection DTOs for list views |
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| SignalR in-memory | Single instance only | Redis backplane ready (ADR-0025) |
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### Existing Optimizations (Positive)
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- Lazy route splitting (16/18 views)
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- Virtual scrolling (Inbox, Activity)
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- `AsNoTracking()` consistent on reads
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- Hard result limits on all queries
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- Performance marks with budget enforcement
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- PWA with Workbox caching strategy
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### With Quick Fixes: ~50+ MAU achievable before major rewrites needed
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---
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## 5. Testing
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### Test Inventory
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| Category | Count | Coverage |
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|----------|-------|----------|
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| Backend Domain tests | ~833+ | Entity invariants, state machines, property-based (FsCheck) |
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| Backend Application tests | ~1,799+ | Services, DTO fuzz, validators, orchestrator |
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| Backend API integration | ~1,135+ | 37 controllers, authz matrix, error contracts, adversarial inputs |
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| Backend Architecture | 8 | Layer boundary, controller rules |
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| Backend CLI | 4 | Contract verification |
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| Frontend unit (Vitest) | ~2,463+ | 200+ test files across stores, views, components, composables, API |
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| Frontend E2E (Playwright) | 61+ | Smoke, capture loop, onboarding, cross-browser, validation slices |
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| Load tests (k6) | Board-heavy profile | 20 VUs, 90s, advisory only |
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| Mutation tests (Stryker) | Domain + captureStore/boardStore | Weekly, non-blocking, 60/80/0 thresholds |
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| Visual regression | 7 tests | `toHaveScreenshot()` with 0.5% threshold |
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| Container integration | 20 tests | Testcontainers PostgreSQL |
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| Property-based | 211+ tests | FsCheck (backend), fast-check (frontend) |
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| Concurrency stress | 35+ tests | SemaphoreSlim barriers for true simultaneity |
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### Test Quality Strengths
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- Two rounds of adversarial review per PR (47 review-fix commits in one wave alone)
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- Cross-user isolation tests across all API boundaries
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- Golden-path integration test (capture -> triage -> proposal -> board)
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- 175-step manual authz validation checklist (28 controllers)
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- Manual validation slices C/D/E with 45+25+25 scenario catalogs
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### Test Gaps
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- Frontend views >1,000 lines are harder to test thoroughly
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- Virtual scrolling not tested under load
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- No performance regression tests in CI gate
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- E2E cross-browser is advisory, not required
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---
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## 6. CI/CD & Operations
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### CI Topology (Advanced)
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| Workflow | Trigger | Purpose |
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|----------|---------|---------|
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| `ci-required.yml` | PR/push/merge | **Gate**: docs, arch, backend, frontend, container, E2E |
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| `ci-extended.yml` | Label/manual | Cross-browser, load test, mutation, visual regression |
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| `ci-nightly.yml` | Schedule | Full regression, cross-browser, load, container images |
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| `nightly-quality.yml` | Schedule | Coverage, dependency security signals |
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| `mutation-testing.yml` | Weekly | Stryker.NET + Stryker JS (non-blocking) |
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| `ci-release.yml` | Tag/release | SBOM/provenance, container artifacts |
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| `release-security.yml` | Tag/release | Dependency inventory, vulnerability reports |
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| `cd-staging-gate.yml` | Release | 4-phase blue/green with manual approval |
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### Operations Maturity
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| Area | Rating | Key Evidence |
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|------|--------|-------------|
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| Release process | Advanced | Blue/green, SBOM, 4-phase staging |
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| Dependency management | Advanced | Dependabot, severity SLAs, grouped updates |
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| Incident response | Intermediate | Runbooks exist, rehearsal cadence, drill scripts |
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| Observability | Intermediate | OpenTelemetry baseline, Sentry optional |
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| Infrastructure | Basic | Terraform single-node, no CI validation |
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| Docker deployment | Intermediate | Multi-stage Dockerfiles, no health checks in compose |
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| Production readiness | Basic | Missing migration safety, secrets rotation, alerting |
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### Critical Gaps for Production
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1. No SAST (static analysis security testing) in CI
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2. No database migration validation in CI
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3. No Terraform `plan` validation in CI
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4. No secrets detection (Gitleaks or equivalent)
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5. No monitoring/alerting rules defined
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6. No on-call runbook or escalation policy
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7. Docker containers run as root (no USER instruction)
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---
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## 7. Documentation
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### Inventory: 338 files across 11+ directories
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| Area | Rating | Notes |
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|------|--------|-------|
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| User-facing docs | 9/10 | START_HERE, 9-chapter manual, FAQ, help guides |
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| API documentation | 8/10 | 7 endpoint docs, Swagger UI, error contracts |
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| Architecture (ADRs) | 9.5/10 | 30 decisions with index, all current |
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| Operations docs | 9/10 | Deployment, DR, incident, cost, release checklist |
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| Testing guide | 9/10 | Comprehensive totals, category breakdown, commands |
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| Security docs | 8/10 | OWASP, secrets, rate limiting, redaction, incidents |
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| Configuration reference | 4/10 | No appsettings.json schema, no env var docs |
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| Data model reference | 3/10 | No entity docs, no ERD |
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| Contributor guide | 7.5/10 | Split across AGENTS.md, CLAUDE.md; no CONTRIBUTING.md |
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| **Overall** | **8.5/10** | Strong governance, targeted gaps |
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---
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## 8. Issue Backlog
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| Metric | Value |
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|--------|-------|
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| Total issues created | 763 |
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| Closed | 356 (96.2% close rate) |
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| Open | 14 (all strategic expansion) |
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| Priority I open | 0 |
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| Priority II open | 7 (strategy trackers, GTM) |
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| Priority III open | 2 (brand, legal) |
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| Priority IV open | 4 (voice capture, connectors, MCP hardening, user research) |
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| Priority V open | 1 (backlog index) |
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| Stale issues | 0 |
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| Duplicate issues | 0 |
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| Open PRs | 2 (#841 integrations, #822 E2E) |
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### Hygiene Items
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- Wave tracker checkboxes (#531-#544) not updated for delivered items
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- #107 (OPS-13) may be superseded by #531 strategy tracker system
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- No GitHub milestones configured (should map to v0.1.0-v1.0.0 release plan)
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---
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## Top 10 Priorities (Recommended Order)
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### Tier 1: Before Any External User (This Week)
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1. **Enable response compression** — 90% bandwidth savings, 1 hour effort
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2. **Add missing database indexes** — AuditLog, LlmRequest, Card — 1 hour
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3. **Fix sync I/O in WorkspaceService** — replace `.Result` with `await` — 30 min
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4. **Add SSRF protection for webhook URLs** — block private IP ranges — 2 hours
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5. **Remove dev JWT secret from `appsettings.Development.json`** — 15 min
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### Tier 2: Before Production Launch (This Month)
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6. **Decompose oversized views** — ReviewView, InboxView, AutomationChatView — 8 hours each
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7. **Implement error boundary** — catch render errors with fallback UI — 2 hours
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8. **Add configuration validation at startup** — `ValidateOnStart()` — 4 hours
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9. **Add API response pagination** — board list, audit, activity — 4 hours each
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10. **Create `SECURITY.md`** vulnerability disclosure policy — 1 hour
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### Tier 3: v0.1.0 Release Prerequisites
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- Self-contained single-file executable (packaging)
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- PostgreSQL migration path tested
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- Docker health checks and resource limits
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- CONTRIBUTING.md and configuration reference docs
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- GitHub milestones for v0.1.0-v0.2.0
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- Responsive design for mobile (8+ breakpoints needed)
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---
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## Conclusion
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Taskdeck is an **impressively engineered product** with production-quality architecture, comprehensive testing, and mature documentation. The core build is effectively complete — what remains is the bridge from "engineering project" to "product people use."
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The 14 open issues are all strategic expansion work. The codebase is clean (2 TODOs in 160K lines), well-tested (7,070+ automated tests with adversarial review), and thoroughly documented (30 ADRs, 338 doc files).
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**The primary risk is not code quality — it's operational readiness.** Response compression, database indexes, configuration validation, and error boundaries are the gap between "works locally" and "works in production." All are addressable in days, not weeks.
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The project is ready to ship v0.1.0 with targeted fixes from Tier 1 and Tier 2 above.

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