System Requirements Document (SRD)

Project Name: verdant-agent

1. Introduction

The verdant-agent project is an AI-based application designed to provide users with interactive, customizable avatars. This system leverages advanced AI technologies to create a seamless and engaging user experience. The application is tailored to meet the needs of users in Singapore (SG), ensuring locale-specific defaults such as timezone (SGT), currency (SGD), and cultural preferences.

This document outlines the system requirements for the verdant-agent project, including functional and non-functional requirements, user personas, design concepts, and technical specifications.

2. System Overview

The verdant-agent application is a platform that allows users to interact with AI-driven avatars. These avatars can be pre-designed or customizable, depending on user preferences. The system is designed for entertainment and personalization, enabling users to engage with avatars in various contexts, such as virtual events, gaming, or social platforms.

The application will feature:

• AI-based avatars with customizable features and outfits.
• Interactive functionalities powered by advanced AI models.
• A visually appealing and user-friendly interface.
• Support for real-time interactions and updates.

3. Functional Requirements

• As a User, I should be able to select from a range of pre-designed avatars.
• As a User, I should be able to customize avatar features, such as hairstyle, clothing, and accessories.
• As a User, I should be able to interact with avatars in real-time through text or voice input.
• As a User, I should be able to save and load my customized avatars.
• As an Admin, I should be able to manage the library of pre-designed avatars.
• As an Admin, I should be able to monitor and moderate user interactions with avatars.
• As a System, I should provide AI-based responses through avatars, powered by GPT 5.4 for user-friendly interactions.
• As a System, I should support avatar animations and expressions to enhance interactivity.
• As a System, I should ensure data privacy and security for all user interactions and customizations.

4. User Personas

4.1. User

• Description: General users who interact with the application for entertainment or personalization purposes.
• Goals: Customize avatars, interact with AI, and save personalized settings.

4.2. Admin

• Description: Administrators responsible for managing the application and ensuring smooth operation.
• Goals: Manage avatar libraries, monitor user interactions, and ensure compliance with policies.

5. Visuals Colors and Theme

The verdant-agent application will feature a unique and vibrant color palette to reflect its playful and engaging nature:

• Background: #F5F9F2 (Soft Mint Green)
• Surface: #FFFFFF (Pure White)
• Text: #2B2D42 (Deep Charcoal)
• Accent: #FF6F61 (Coral Red)
• Muted Tones: #A8DADC (Pale Aqua)

This palette is designed to create a fresh, modern, and inviting aesthetic that aligns with the application's purpose.

6. Signature Design Concept

The verdant-agent homepage will feature an immersive 3D avatar showcase. Upon landing, users will see a rotating carousel of avatars in a virtual gallery. Each avatar will be displayed in a dynamic pose, with subtle animations like blinking, waving, or shifting expressions.

Key Features:

• Interactive Avatar Selection: Users can click on an avatar to zoom in and view customization options.
• Dynamic Background: A living watercolor effect that shifts hues based on the time of day (e.g., soft blues in the morning, warm oranges in the evening).
• Micro-Interactions: Hovering over elements triggers smooth transitions, such as buttons glowing or avatars responding with a nod.
• Sound Design: Gentle ambient sounds, like soft chimes or nature sounds, enhance the immersive experience.

This bold design ensures that the verdant-agent homepage leaves a lasting impression on users, making it both memorable and engaging.

7. Non-Functional Requirements

• The system must support at least 10,000 concurrent users.
• The application should load within 3 seconds on standard broadband connections.
• The system must comply with Singapore's Personal Data Protection Act (PDPA).
• The application should be accessible on both web and mobile platforms.
• The system must ensure 99.9% uptime reliability.

8. Tech Stack

Frontend

• React for Web
• React Native for Mobile App

Backend

• Python
• FastAPI

Database

• MySQL with Alembic for migrations

AI Models

• GPT 5.4 for user-friendly responses
• Claude 4.6 Opas for academic or coding work
• Google Nano Banana for image generation

AI Tools

• Litellm for LLM Routing
• Langchain

Orchestration

• Docker and docker-compose for local orchestration
• Kubernetes for server-side orchestration

9. Assumptions and Constraints

• Users will primarily access the application from Singapore, so the system will default to SGT timezone and SGD currency.
• The application will require internet connectivity for real-time AI interactions.
• Avatar customization options will initially be limited to predefined templates, with plans for expansion in future updates.
• The system will prioritize data privacy and security, adhering to local regulations.

10. Glossary

• Avatar: A digital representation of a user or character within the application.
• PDPA: Personal Data Protection Act, a Singaporean law governing data privacy.
• LLM: Large Language Model, an AI model designed for natural language processing.
• SGT: Singapore Time, the timezone used in Singapore.
• Customization: The process of modifying an avatar's appearance or features.