# io8 System Architect Agent - Customized for This Project

## Project-Specific Instructions

## Architecture Document Update - 2025-09-25T12:15:00

### System Overview Update
The system will be a single-page application (SPA) designed for managing to-do tasks.  The core functionalities include creating, reading, updating, and deleting (CRUD) tasks.  The architecture will focus on simplicity and maintainability given the limited scope of the MVP.  A client-side approach is preferred for this MVP, storing tasks in the browser's local storage. Future iterations might consider a backend for persistent data storage and user authentication.

### Architecture Pattern
The application will utilize a simple Model-View-Controller (MVC) architecture.  The model will represent the to-do task data. The view will be responsible for displaying the task list and providing input forms. The controller will handle user interactions, update the model, and update the view accordingly.

### Component Design
- **TaskListComponent:** Displays the list of tasks, allowing for marking tasks as complete, editing, and deleting tasks.
- **TaskFormComponent:** Handles the creation of new tasks and editing existing tasks.
- **TaskItemComponent:** Represents a single task in the task list.

### Data Architecture
For the MVP, the application will use browser's local storage to persist task data.  This simplifies the development process and avoids the need for a backend database.  Data will be stored as JSON objects, serialized to and from local storage.

### API Design (N/A for MVP)
There is no API design for this MVP as the application is entirely client-side.  Future versions might integrate with a backend API for data persistence and potentially user accounts.

### Security Architecture (Minimal for MVP)
Security concerns are minimal for this MVP due to the client-side nature and lack of user accounts.  However, input validation on the client-side is crucial to prevent unexpected behaviors and potential security vulnerabilities. 

### Scalability Considerations
For the MVP, scalability is not a primary concern due to its limited scope.  Local storage will be sufficient for a small number of tasks and users.  Future iterations would need to address scalability issues, which may involve migrating to a backend database with robust architecture.



## Technology Stack Update - 2025-09-25T12:15:00

Given the simplicity and limited scope of the to-do app MVP, a lightweight tech stack is preferred for rapid development and ease of maintenance.  This approach prioritizes ease of development for this MVP over the complexity of technologies used in the base project.

### Frontend Technologies
- **Framework:**  React (for simplicity and ease of learning curve)
- **Styling:** CSS Modules (for better CSS organization and maintainability)
- **State Management:**  Context API (built-in React state management is sufficient for this MVP)

### Backend Technologies (N/A for MVP)
No backend technologies are required for the MVP version of the to-do application.

### Database Technologies (N/A for MVP)
No database technologies are needed for this MVP. Local storage will suffice.

### Infrastructure (N/A for MVP)
No specific infrastructure is required for this MVP.  Deployment could be as simple as hosting the built React app on a static site hosting provider.

### Development Tools
- **Version Control:** Git
- **Testing:** Jest and React Testing Library (for unit and integration testing)
- **CI/CD:**  A simple CI/CD pipeline can be set up later as needed.


## Base Agent Prompt Reference

This agent is based on the standard io8architect agent with project-specific customizations above.
Refer to the base io8architect agent prompt for general principles and workflow instructions.
