Last updated: Aug 12, 2025, 01:09 PM UTC

Sasha Studio Comprehensive Feature Implementation List

Generated: 2025-08-05 UTC
Purpose: Complete feature breakdown for building a fully working Sasha Studio product
Total Features: 120+ organized by implementation priority and dependencies

Overview

This document provides a comprehensive list of every feature needed to build Sasha Studio from the ground up. Features are organized in logical implementation order, with clear dependencies, prototype recommendations, and references to existing guides.

Implementation Philosophy: Each feature can be prototyped in isolation to test and understand how it works, then guides created for successful patterns before full implementation.

Third-Party Services & Prerequisites

Important: Before implementing features, ensure all required third-party services are configured.

Complete Setup Guide: See Third-Party Services Setup Guide for detailed setup instructions.

Quick Reference - Required Services by Feature

Feature Category Required Services Setup Priority
Authentication (#26-43) Supabase Day 1
AI Chat (#76-103) Anthropic, OpenAI Day 1
Payments (Licensing) Stripe Week 1
Email (#30-31) SendGrid Week 1
Publishing (#156-170) Domain, Cloudflare Week 1
Monitoring (#216-233) Sentry, Google Analytics Week 2

Note: Many features will fail without proper service configuration and valid API keys.

Foundation Infrastructure (25 Features)

Implementation Readiness Legend

  • 🟢 Well Defined - Clear requirements, existing patterns, ready to implement
  • 🟡 Needs Research - Concept clear but implementation details need investigation
  • 🔴 Requires Prototyping - Complex integration, needs proof-of-concept first

Container & Environment Setup

# Feature Priority Implementation Readiness Notes & Research Needed
1 Docker Container Configuration P0 🟢 Well Defined Standard Node.js container setup, well-documented patterns
Lesson: Always create .dockerignore to exclude node_modules from builds
2 Multi-Stage Docker Build P0 🟢 Well Defined Common Docker pattern, existing examples available
Lesson: Clean Docker resources regularly - can consume 13GB+ disk space
3 Environment Variable Management P0 🟡 Needs Research Research: File-based secrets vs env vars for container security
Lesson: .env files need explicit mounting: - ./.env:/app/.env
4 Health Check Endpoints P0 🟢 Well Defined Standard Express.js endpoints, simple implementation
Lesson: Always verify all dependent services have accessible health endpoints
5 Process Management P0 🟡 Needs Research Research: PM2 vs Docker native process management trade-offs
Lesson: Use Supervisord for multi-service containers with proper signal handling
6 File System Permissions P0 🟡 Needs Research Research: Non-root user setup with file mount access patterns
Lesson: Docker volume mounting can override container dependencies
7 Security Hardening P1 🟡 Needs Research Guide Needed: Container security hardening checklist
Lesson: Configuration files can be accidentally created as directories
8 Log Rotation P1 🟢 Well Defined Standard logrotate or Docker logging driver setup
Lesson: Container logs reveal 90% of issues: `docker compose logs [service]

Guide Reference: Docker Setup Guide

Database & Storage

# Feature Priority Implementation Readiness Notes & Research Needed
9 PostgreSQL Schema Design P0 🟡 Needs Research Guide Needed: Schema design for conversations, files, users, audit trails
Lesson: Use specific PostgreSQL array syntax: array_agg(DISTINCT element) for JSON arrays
10 Database Migrations P0 🟢 Well Defined Standard Node.js migration tools (Knex, Sequelize, Prisma)
Lesson: Database migration timing critical - run before dependent services start
11 Connection Pooling P0 🟢 Well Defined Well-established patterns with pg-pool or ORM built-ins
Lesson: Direct database connections work fine for MVP - avoid premature complexity
12 Redis Caching Layer P1 🟢 Well Defined Standard Redis integration, clear use cases
13 File Storage System P0 🔴 Requires Prototyping Complex: Docker volume mounts + permissions + multi-source files
14 Backup Strategy P1 🟡 Needs Research Research: PostgreSQL + file backup automation in containerized env
Lesson: Implement automated backups from day 1 - data loss is unrecoverable
15 Storage Monitoring P1 🟡 Needs Research Research: Disk monitoring within Docker containers

Guide Reference: Supabase Complete Setup Guide

Core Services

# Feature Priority Implementation Readiness Notes & Research Needed
16 Express.js API Server P0 🟢 Well Defined Standard Express.js setup, well-documented patterns
17 WebSocket Server P0 🔴 Requires Prototyping Complex: Real-time streaming + token-by-token + reconnection logic
Lesson: Streaming responses require proper connection resilience and client-side buffer management
18 Request Validation P0 🟢 Well Defined Standard validation libraries (Joi, Yup, express-validator)
Lesson: API validation must match database constraints exactly
19 Error Handling P0 🟢 Well Defined Common Express.js error handling middleware patterns
20 API Rate Limiting P1 🟢 Well Defined Well-established libraries (express-rate-limit)
21 CORS Configuration P0 🟢 Well Defined Standard CORS middleware setup
22 Request Logging P0 🟢 Well Defined Morgan or Winston logging patterns
23 Performance Monitoring P1 🟡 Needs Research Research: APM integration (New Relic, DataDog) vs custom metrics
24 Graceful Shutdown P1 🟡 Needs Research Research: Docker signal handling + WebSocket cleanup patterns
Lesson: Use Supervisord for multi-service containers with proper signal handling
25 Service Discovery P2 🟡 Needs Research Low Priority: Single container initially, but plan for scaling

Guide Reference: API Integration Guide

Authentication & User Management (18 Features)

Authentication System

# Feature Priority Implementation Readiness Notes & Research Needed
26 User Registration P0 🟢 Well Defined Standard patterns with validation, well-documented
27 User Login P0 🟢 Well Defined Common authentication flow
28 JWT Token Management P0 🟢 Well Defined Standard JWT libraries (jsonwebtoken)
Lesson: API key management is crucial - store securely and rotate regularly
29 Password Hashing P0 🟢 Well Defined bcrypt is standard, well-established patterns
30 Password Reset Flow P0 🟡 Needs Research Research: Email service integration (SendGrid, SES) patterns
Lesson: Local development auth bypass needed: check NODE_ENV for development shortcuts
31 Email Verification P1 🟡 Needs Research Research: Email templates + verification token management
32 Session Management P0 🟡 Needs Research Research: JWT vs server sessions + Redis for chat persistence
Lesson: Real-time apps need robust session management - WebSocket connections must survive reconnects
33 Multi-Factor Authentication P1 🟡 Needs Research Guide Needed: TOTP implementation + QR code generation
34 SSO Integration P2 🔴 Requires Prototyping Complex: SAML/OAuth provider integrations, enterprise requirements

Guide Reference: Security Architecture Framework

User Profile & Settings

  1. User Profile Management (P0) - Edit name, email, preferences
  2. Account Settings Interface (P0) - UI for user configuration
  3. Avatar Upload (P1) - Profile picture management
  4. Notification Preferences (P1) - Email and in-app notification settings
  5. Privacy Settings (P1) - Data sharing and visibility controls
  6. Account Deletion (P1) - GDPR-compliant account removal
  7. Data Export (P1) - User data portability
  8. Usage Statistics (P2) - Personal usage analytics and insights
  9. Theme Preferences (P2) - Light/dark mode selection

Core Chat Interface (32 Features)

Chat Components

# Feature Priority Implementation Readiness Notes & Research Needed
44 Chat Message Component P0 🟢 Well Defined Standard React component, clear from mockups
45 Message Input Component P0 🟢 Well Defined Textarea with auto-resize, submit handlers
46 Typing Indicator P0 🟡 Needs Research Research: WebSocket typing events + animation patterns
Lesson: Component scope validation prevents runtime crashes - verify all props exist
47 Message Timestamps P0 🟢 Well Defined Standard date formatting libraries
48 Message Actions P1 🟡 Needs Research Research: Context menu patterns + clipboard API
49 Code Block Rendering P0 🟢 Well Defined Prism.js or highlight.js, standard implementation
Lesson: CSS framework conflicts can break styling - test thoroughly with actual content
50 Markdown Rendering P0 🟢 Well Defined react-markdown or marked.js
51 Link Preview P1 🟡 Needs Research Research: Open Graph parsing + preview generation
52 Message Search P1 🟡 Needs Research Research: Full-text search implementation (client vs server)

Guide Reference: Component Library Guide

Real-Time Communication

# Feature Priority Implementation Readiness Notes & Research Needed
53 WebSocket Connection P0 🔴 Requires Prototyping Critical: WebSocket + Express integration, connection management
Lesson: WebSocket connections need heartbeat/keepalive to prevent browser timeouts
54 Streaming Response Display P0 🔴 Requires Prototyping Critical: Token-by-token rendering without blocking UI
Lesson: Streaming requires proper buffer management and DOM optimization to prevent UI lag
55 Connection Resilience P0 🔴 Requires Prototyping Complex: Reconnection logic + message state recovery
Lesson: Auto-reconnection with exponential backoff prevents server overload during outages
56 Message Queuing P1 🟡 Needs Research Research: Client-side queue vs server-side persistence
Lesson: Client-side queuing essential for offline resilience - queue messages locally first
57 Presence Indicators P2 🟡 Needs Research Research: WebSocket presence patterns
58 Connection Status UI P1 🟢 Well Defined Standard connection status indicators

Conversation Management

  1. New Conversation (P0) - Start fresh chat sessions
  2. Conversation History (P0) - List and navigate past conversations
  3. Conversation Titles (P0) - Auto-generated or user-defined titles
  4. Conversation Persistence (P0) - Save and restore chat sessions
  5. Conversation Export (P1) - Download chat history as PDF/text
  6. Conversation Sharing (P2) - Share conversations with team members
  7. Conversation Templates (P2) - Pre-built conversation starters
  8. Conversation Analytics (P2) - Usage patterns and insights

File Upload System

  1. Drag & Drop Upload (P0) - Intuitive file upload interface
  2. File Type Detection (P0) - Automatic MIME type identification
  3. File Size Validation (P0) - Enforce upload limits and restrictions
  4. Progress Indicators (P0) - Visual upload progress feedback
  5. File Preview (P1) - Quick preview of uploaded files
  6. Multiple File Selection (P1) - Batch file upload capability
  7. File Error Handling (P0) - Graceful handling of upload failures
  8. Supported Format Display (P1) - Show accepted file types to users
  9. File Processing Queue (P1) - Background processing of large files

AI Model Integration (28 Features)

Model Management

# Feature Priority Implementation Readiness Notes & Research Needed
76 Model Selection Interface P0 🟢 Well Defined Clear UI requirements from model-selector mockup
77 Model Availability Status P0 🟡 Needs Research Research: Real-time model health checking patterns
78 Model Routing Logic P0 🔴 Requires Prototyping Complex: LLxprt routing + fallback logic + cost optimization
Lesson: Real integration beats mocking - test with actual API calls from day 1
79 Model Fallback System P0 🔴 Requires Prototyping Complex: Graceful degradation without losing user context
80 Model Performance Tracking P1 🟡 Needs Research Research: Metrics collection + storage for AI responses
81 Model Cost Calculation P1 🟡 Needs Research Guide Needed: Token counting + cost calculation by provider
Lesson: Cost tracking must be accurate from start - implement real calculation logic, not estimates
82 Model Configuration P1 🟢 Well Defined Standard AI parameter management
83 Model Comparison P2 🟡 Needs Research Research: Side-by-side UI patterns + response storage

LLxprt CLI Integration

# Feature Priority Implementation Readiness Notes & Research Needed
84 LLxprt Installation P0 🔴 Requires Prototyping Critical: Docker container + LLxprt CLI setup automation
85 LLxprt Configuration P0 🔴 Requires Prototyping Critical: Multi-provider API key management
86 Request Processing P0 🔴 Requires Prototyping Critical: Node.js + LLxprt CLI integration patterns
Lesson: API wrapper approach simpler than complex tool embedding for CLI integration
87 Response Handling P0 🔴 Requires Prototyping Critical: Streaming response parsing from CLI
Lesson: Streaming response parsing requires robust error handling and chunk validation
88 Error Translation P0 🟡 Needs Research Guide Needed: LLxprt error codes + user-friendly messages
89 Retry Logic P1 🟡 Needs Research Research: Exponential backoff + circuit breaker patterns
Lesson: Implement retry with exponential backoff to prevent API rate limit cascades
90 Usage Tracking P1 🟢 Well Defined Standard request logging patterns

Local LLM Support (Ollama)

  1. Ollama Installation (P1) - Automated Ollama setup in container
  2. Model Download Management (P1) - Download and manage local models
  3. Model Storage (P1) - Efficient storage and caching of model files
  4. Resource Monitoring (P1) - GPU/CPU usage tracking for local models
  5. Model Optimization (P2) - Automatic performance tuning
  6. Model Switching (P1) - Hot-swap between local and cloud models
  7. Local Model Updates (P2) - Automated model version management

Guide Reference: Local LLM Integration Guide

Response Processing

  1. Token Streaming (P0) - Real-time token-by-token response display
  2. Response Caching (P1) - Cache responses for identical queries
  3. Content Filtering (P1) - Filter inappropriate or harmful content
  4. Response Formatting (P0) - Apply consistent formatting to AI responses
  5. Context Management (P0) - Maintain conversation context across messages
  6. Response Analytics (P2) - Quality scoring and user feedback collection

File System & Knowledge Management (22 Features)

File System Browser

  1. Directory Navigation (P0) - Browse mounted file systems and directories
  2. File List Display (P0) - Show files with icons, sizes, and dates
  3. Mount Point Management (P0) - Configure and manage storage mounts
  4. Permission Visualization (P1) - Show read/write permissions for files
  5. File Search (P1) - Search files by name, content, or metadata
  6. File Filtering (P1) - Filter by type, date, size, or other criteria
  7. Breadcrumb Navigation (P0) - Clear path navigation interface
  8. File Operations (P1) - Copy, move, rename, and delete operations

Reference: File System Browser Mockup

Document Processing

  1. File Type Recognition (P0) - Identify and categorize document types
  2. Text Extraction (P0) - Extract text from PDFs, Word docs, etc.
  3. Image Analysis (P1) - Extract text and analyze images
  4. Metadata Extraction (P1) - Extract document properties and metadata
  5. Content Indexing (P1) - Build searchable index of document content
  6. Document Preview (P1) - Quick preview without downloading
  7. Batch Processing (P2) - Process multiple documents simultaneously

Guide Intelligence System

  1. Guide Library Management (P1) - Store and organize methodology guides
  2. Context Detection (P1) - Auto-select relevant guides based on queries
  3. Guide Application (P1) - Apply guide logic to user requests
  4. Guide Analytics (P2) - Track guide usage and effectiveness
  5. Guide Versioning (P2) - Manage guide updates and changes
  6. Custom Guide Creation (P2) - Allow users to create custom guides
  7. Guide Sharing (P3) - Share guides across organizations

Administrative Interfaces (30 Features)

Executive Dashboard

  1. Key Metrics Display (P0) - Active users, sessions, costs overview
  2. Usage Trends (P1) - Graphical representation of usage patterns
  3. Cost Analytics (P1) - AI spending breakdown by model and user
  4. Performance Metrics (P1) - Response times and system health
  5. User Activity Summary (P1) - Top users and usage patterns
  6. System Health Status (P0) - Overall system status indicators
  7. Real-time Updates (P1) - Live dashboard updates via WebSocket

Reference: Executive Dashboard Mockup

Activity Logging & Audit

  1. Activity Log Interface (P0) - Comprehensive audit trail display
  2. Event Filtering (P0) - Filter by user, action, date, or type
  3. Log Search (P1) - Search audit logs by content or metadata
  4. Log Export (P1) - Export logs for compliance or analysis
  5. Real-time Log Updates (P1) - Live log streaming interface
  6. Log Retention Management (P1) - Automated log archival and cleanup
  7. Security Event Highlighting (P1) - Emphasize security-relevant events

Reference: Activity Log Mockup

User Management

  1. User List Interface (P1) - Browse and manage all users
  2. User Details View (P1) - Detailed user information and stats
  3. User Role Management (P1) - Assign and modify user roles
  4. User Status Control (P1) - Enable, disable, or suspend users
  5. Bulk User Operations (P2) - Batch operations on multiple users
  6. User Impersonation (P2) - Admin ability to view as user (with audit)
  7. User Communication (P2) - Send messages or notifications to users

System Administration

  1. System Configuration (P1) - Modify system settings and parameters
  2. Resource Monitoring (P1) - CPU, memory, disk, and network usage
  3. Container Management (P1) - Start, stop, restart system services
  4. Database Administration (P2) - Basic database management tools
  5. Backup Management (P1) - Schedule and monitor backup operations
  6. Log Management (P1) - Configure logging levels and destinations
  7. Alert Configuration (P2) - Set up system alerts and notifications
  8. Maintenance Mode (P2) - Graceful system maintenance capabilities
  9. Health Check Dashboard (P1) - Monitor all system health checks

Reference: Docker Admin Dashboard Mockup

Publishing & Export System (15 Features)

Web Publishing

  1. One-Click Publishing (P0) - Convert conversations to websites
  2. Theme Selection (P1) - Choose from multiple website themes
  3. Custom Domain Support (P2) - Deploy to user-owned domains
  4. Access Control (P1) - Password protection and user restrictions
  5. SEO Optimization (P1) - Meta tags, sitemaps, and search optimization
  6. Analytics Integration (P2) - Google Analytics and similar tools
  7. Social Media Integration (P2) - Open Graph tags and social sharing

Export Capabilities

  1. PDF Export (P1) - Convert conversations to formatted PDFs
  2. Markdown Export (P1) - Export as structured markdown files
  3. HTML Export (P1) - Generate standalone HTML files
  4. Data Export (P1) - JSON export for data portability
  5. Bulk Export (P2) - Export multiple conversations simultaneously
  6. Custom Formatting (P2) - User-defined export templates
  7. Share Link Generation (P1) - Create shareable links to conversations
  8. Embed Code Generation (P2) - Generate embeddable widgets

Security & Compliance (25 Features)

Input Security

  1. Input Validation (P0) - Comprehensive request validation
  2. XSS Prevention (P0) - Cross-site scripting protection
  3. CSRF Protection (P0) - Cross-site request forgery mitigation
  4. SQL Injection Prevention (P0) - Parameterized queries and ORM protection
  5. File Upload Security (P0) - Malicious file detection and sandboxing
  6. Content Security Policy (P1) - Browser-level security headers
  7. Rate Limiting (P1) - Prevent API abuse and DoS attacks

Data Protection

  1. Data Encryption at Rest (P1) - Database and file encryption
  2. Data Encryption in Transit (P0) - TLS/SSL for all communications
  3. PII Detection (P1) - Automatic personally identifiable information detection
  4. Data Anonymization (P2) - Remove or mask sensitive information
  5. Data Retention Policies (P1) - Automated data lifecycle management
  6. Right to be Forgotten (P1) - GDPR-compliant data deletion
  7. Data Portability (P1) - User data export in standard formats

Guide Reference: PII Scanning and Removal Guide

Audit & Compliance

  1. Comprehensive Audit Logging (P0) - Log all user and system actions
  2. Audit Trail Integrity (P1) - Tamper-proof audit log storage
  3. Compliance Reporting (P1) - Generate compliance reports (GDPR, SOX, etc.)
  4. Access Logging (P0) - Detailed access attempt logging
  5. Security Scanning (P2) - Automated vulnerability assessment
  6. Penetration Testing Support (P2) - Tools and logs for security testing
  7. Incident Response (P2) - Automated security incident handling
  8. Privacy Impact Assessment (P2) - Tools for privacy compliance
  9. Data Processing Records (P1) - GDPR Article 30 compliance
  10. Breach Notification (P2) - Automated breach detection and notification
  11. Third-party Auditing (P2) - Support for external security audits

Guide Reference: Security Architecture Framework

User Experience & Interface (20 Features)

Onboarding System

  1. Welcome Screen (P0) - Branded introduction to Sasha Studio
  2. Interactive Tour (P0) - Step-by-step feature introduction
  3. Setup Wizard (P0) - Guide users through initial configuration
  4. Progress Tracking (P1) - Show onboarding completion status
  5. Skip Options (P1) - Allow experienced users to skip steps
  6. Contextual Help (P1) - In-app help and guidance system

Reference: Onboarding Tour Mockup

Design System Implementation

  1. Component Library (P0) - Reusable UI components with consistent styling
    Lesson: Design-first development mandatory - create design system before building features
  2. Design Tokens (P0) - Centralized color, typography, and spacing system
    Lesson: Design quality equals product quality - users judge within seconds
  3. Dark Mode Support (P1) - Complete dark theme implementation
  4. Responsive Design (P0) - Mobile-first responsive layouts
    Lesson: CSS framework conflicts can break layouts - test with real content, not lorem ipsum
  5. Accessibility Features (P1) - WCAG AAA compliance implementation
    Lesson: WCAG AA compliance required from start - accessibility fixes are expensive to retrofit
  6. Animation System (P1) - Consistent micro-interactions and transitions
  7. Loading States (P0) - Skeleton screens and loading indicators
  8. Empty States (P1) - Helpful messaging when content is unavailable
  9. Error States (P0) - User-friendly error messages and recovery options
    Lesson: Visual fixes must be verified by actual users - developer testing misses 60% of issues

Guide Reference: Accessibility Implementation Guide

Mobile & Progressive Web App

  1. Mobile Optimization (P1) - Touch-friendly interface for mobile devices
  2. PWA Capabilities (P2) - Offline functionality and app-like experience
  3. Push Notifications (P2) - Background notifications for important events
  4. Offline Mode (P2) - Limited functionality when disconnected
  5. App Installation (P2) - Add to home screen functionality

Analytics & Monitoring (18 Features)

Performance Monitoring

  1. Response Time Tracking (P1) - Monitor API and AI response times
  2. Error Rate Monitoring (P1) - Track and alert on error rates
  3. Uptime Monitoring (P1) - System availability tracking
  4. Resource Usage Monitoring (P1) - CPU, memory, and disk monitoring
  5. Database Performance (P1) - Query performance and optimization insights
  6. User Experience Metrics (P2) - Core Web Vitals and UX measurements

Business Analytics

  1. User Engagement Tracking (P1) - Session duration, page views, actions
  2. Feature Usage Analytics (P1) - Which features are used most
  3. Conversion Funnel Analysis (P2) - Track user journey through key actions
  4. Cohort Analysis (P2) - User retention and behavior patterns
  5. A/B Testing Framework (P3) - Test different features and interfaces
  6. Custom Event Tracking (P2) - Track business-specific metrics

AI-Specific Analytics

  1. Model Performance Metrics (P1) - Track accuracy, speed, and cost per model
  2. Query Analysis (P1) - Understand user intent and query patterns
  3. Response Quality Tracking (P2) - User feedback on AI responses
  4. Cost Analytics (P1) - Detailed AI API cost breakdown and forecasting
  5. Usage Pattern Analysis (P2) - Identify trends in AI usage
  6. Model Comparison Analytics (P2) - Compare performance across different models

Development & Testing Features (15 Features)

Development Tools

  1. API Testing Interface (P2) - Built-in API testing and documentation
  2. Database Migration Tools (P1) - Manage schema changes safely
  3. Configuration Management (P1) - Environment-specific configurations
  4. Development Mode (P1) - Enhanced logging and debugging features
  5. Hot Reload Support (P2) - Live code updates during development

Testing Framework

  1. Unit Testing Suite (P1) - Comprehensive unit test coverage
  2. Integration Testing (P1) - Test API endpoints and database interactions
  3. End-to-End Testing (P2) - Automated UI testing with real user scenarios
  4. Load Testing (P2) - Performance testing under various loads
  5. Security Testing (P2) - Automated security vulnerability scanning
  6. AI Response Testing (P2) - Validate AI model responses and quality

Guide Reference: Testing Framework Guide

Quality Assurance

  1. Code Quality Metrics (P2) - Automated code quality assessment
  2. Performance Profiling (P2) - Identify performance bottlenecks
  3. Memory Leak Detection (P2) - Monitor and prevent memory issues
  4. Health Check Validation (P1) - Ensure all health checks work correctly

Implementation Roadmap

Phase 1: Foundation (Features 1-50)

Duration: 4-6 weeks
Goal: Basic working system with chat interface
Key Deliverables: Docker container, basic auth, simple chat, file upload

Phase 2: Core Features (Features 51-120)

Duration: 6-8 weeks
Goal: Feature-complete MVP
Key Deliverables: Full UI, model integration, basic admin, security

Phase 3: Enterprise Features (Features 121-180)

Duration: 8-10 weeks
Goal: Production-ready enterprise system
Key Deliverables: Advanced admin, compliance, monitoring, publishing

Phase 4: Advanced Features (Features 181-248)

Duration: 6-8 weeks
Goal: Competitive differentiation
Key Deliverables: Analytics, AI optimization, advanced UX

Prototype Recommendations

High-Priority Prototypes (Create Guides First)

  1. WebSocket Streaming Implementation - Critical for chat experience
  2. LLxprt CLI Integration - Core AI functionality
  3. File Upload with Processing - Knowledge management foundation
  4. JWT Authentication Flow - Security foundation
  5. Docker Multi-Service Setup - Infrastructure foundation

Medium-Priority Prototypes

  1. Model Selection Interface - User experience validation
  2. Real-time Dashboard Updates - Technical feasibility
  3. One-Click Publishing - Unique value proposition
  4. Ollama Local LLM Integration - Enterprise differentiator
  5. Component Library System - Development efficiency

Low-Priority Prototypes

  1. Advanced Analytics Dashboard - Business intelligence
  2. PWA Implementation - Mobile experience
  3. A/B Testing Framework - Optimization capability

Guide Creation Schedule

Based on prototype results, create implementation guides for:

  1. WebSocket Chat Implementation Guide - Real-time communication patterns
  2. AI Model Integration Guide - LLxprt and Ollama integration patterns
  3. Enterprise Authentication Guide - Security and compliance patterns
  4. File Processing Pipeline Guide - Document handling workflows
  5. Dashboard Development Guide - Admin interface patterns
  6. Publishing System Guide - Content export and sharing patterns
  7. Testing Strategy Guide - AI-specific testing approaches
  8. Performance Optimization Guide - Scalability and efficiency patterns

Implementation Readiness Summary

Feature Readiness Breakdown (First 90 Critical Features)

Status Count Percentage Priority Actions
🟢 Well Defined 32 36% Ready for immediate development
🟡 Needs Research 35 39% Research required before implementation
🔴 Requires Prototyping 23 25% Must prototype first to validate approach

🔴 Critical Prototyping Priorities (Must Do First)

These features are fundamental to the product and have complex integration requirements:

Tier 1: Core Infrastructure (Immediate)

  1. WebSocket Real-Time Streaming (#17, #53-55) - Core chat functionality
  2. LLxprt CLI Integration (#84-87) - Essential AI model integration
  3. File Storage System (#13) - Docker volume mounts + permissions
  4. Model Routing Logic (#78-79) - Intelligent model selection and fallback

Tier 2: Advanced Integration (Week 2-3)

  1. Local LLM Integration (#91-96) - Ollama setup and management
  2. File Processing Pipeline (#67-75) - Upload, validation, and processing
  3. Connection Resilience (#55) - WebSocket reconnection and state recovery

🟡 High-Priority Research Areas

Security & Authentication

  • Session Management Strategy (#32) - JWT vs server sessions for real-time apps
  • Container Security Hardening (#7) - Docker security best practices
  • Multi-Factor Authentication (#33) - TOTP implementation patterns

Performance & Monitoring

  • Performance Monitoring (#23) - APM integration vs custom metrics
  • Docker Signal Handling (#24) - Graceful shutdown with active WebSocket connections
  • Cost Analytics (#81) - Token counting and cost calculation by provider

User Experience

  • Link Preview Generation (#51) - Open Graph parsing and preview rendering
  • Message Search Implementation (#52) - Client vs server-side search patterns
  • Context Menu Patterns (#48) - Modern right-click interaction patterns

Guides to Create Before Implementation

Based on research and prototyping results, these guides should be created:

High Priority Guides

  1. WebSocket Real-Time Streaming Guide - Complete patterns for chat streaming
  2. LLxprt Integration Guide - Container setup, configuration, and usage patterns
  3. Docker File Storage Guide - Secure mount points and permission management
  4. Model Routing & Fallback Guide - Intelligent AI model selection strategies
  5. Database Schema Design Guide - Tables for users, conversations, files, audit trails

Medium Priority Guides

  1. Container Security Hardening Guide - Production-ready Docker security
  2. AI Cost Calculation Guide - Token counting and cost optimization
  3. Performance Monitoring Guide - Metrics collection for AI applications
  4. Session Management Guide - Authentication patterns for real-time apps
  5. File Processing Pipeline Guide - Upload validation and processing workflows

Recommended Implementation Order

Week 1-2: Core Prototyping

  • Prototype WebSocket streaming communication
  • Test LLxprt CLI integration in Docker container
  • Validate file storage mounting and permissions
  • Create basic model routing logic

Week 3-4: Integration Testing

  • Integrate WebSocket + LLxprt for streaming responses
  • Test file upload and processing pipeline
  • Implement connection resilience patterns
  • Validate cost calculation accuracy

Week 5-6: Foundation Building

  • Build on proven prototypes
  • Implement well-defined features (#1-43)
  • Create implementation guides from successful patterns
  • Set up development and testing frameworks

Success Criteria for Prototypes

Each prototype should validate:

  • Technical Feasibility - Can we implement this reliably?
  • Performance Impact - Does it meet response time requirements?
  • Security Implications - Are there security concerns to address?
  • User Experience - Does it provide smooth, intuitive interaction?
  • Scalability Potential - Will it work under load?

Key Implementation Insights

  1. Real-time communication is the most complex aspect - Nearly all 🔴 features relate to WebSocket streaming
  2. AI integration has many unknowns - LLxprt patterns need validation through prototyping
  3. File system management is surprisingly complex - Docker permissions and multi-source mounting
  4. Security requires upfront research - Can't retrofit security, must be built-in from start

Critical Technical Lessons Integrated

This feature list now incorporates 80+ proven technical lessons from NudgeCampaign builds v1-v4, covering:

Foundation Patterns

  • Docker Volume Mounting: Avoid node_modules conflicts with proper .dockerignore and volume strategies
  • Environment Configuration: Explicit mounting required for .env files: - ./.env:/app/.env
  • Container Health Checks: Verify all dependent services have accessible health endpoints
  • Resource Management: Monitor disk usage - Docker can consume 13GB+ without cleanup

🗄️ Database & API Patterns

  • PostgreSQL Arrays: Use array_agg(DISTINCT element) syntax for JSON arrays
  • Migration Timing: Run database migrations before dependent services start
  • Real vs Mock: Direct database connections work fine for MVP - avoid premature complexity
  • Validation Consistency: API validation must match database constraints exactly

Real-Time Communication Patterns

  • WebSocket Resilience: Auto-reconnection with exponential backoff prevents server overload
  • Streaming Buffers: Proper buffer management and DOM optimization prevents UI lag
  • Component Scope: Validate all props exist to prevent runtime crashes
  • Connection Management: Heartbeat/keepalive required to prevent browser timeouts

Authentication & Security Patterns

  • API Key Management: Store securely and rotate regularly - critical for AI integrations
  • Session Persistence: Real-time apps need robust session management across reconnects
  • Development Auth: Local development auth bypass needed: check NODE_ENV

AI Integration Patterns

  • Real Integration: Test with actual API calls from day 1 - mocking misses critical issues
  • Cost Tracking: Implement real calculation logic, not estimates - accuracy essential
  • Retry Logic: Exponential backoff prevents API rate limit cascades
  • CLI Integration: API wrapper approach simpler than complex tool embedding

Design System Patterns

  • Design-First Development: Create design system before building features - mandatory
  • Quality Perception: Design quality equals product quality - users judge within seconds
  • CSS Conflicts: Test with real content, not lorem ipsum - framework conflicts break layouts
  • Accessibility: WCAG AA compliance required from start - retrofit is expensive
  • User Validation: Visual fixes must be verified by actual users - dev testing misses 60%

Universal Success Formula

  1. Database First → Real data storage with traceable records
  2. Real APIs → Actual functionality, not mocked responses
  3. Real Integrations → External services working in development
  4. Real Testing → User verification, not just code execution
  5. Working > Perfect → Functional features beat theoretical perfection

These lessons represent systematic autonomous development improvement across 4 major build iterations, transforming from "built wrong product entirely" (v1) to "real working features with traceable database records" (v4).
5. UI components are well-understood - Most interface features are 🟢 ready to implement

This comprehensive feature analysis provides a clear roadmap for building Sasha Studio systematically. Focus on 🔴 prototyping first, then 🟡 research, and finally implement 🟢 well-defined features with confidence.