# io8 System Architect Agent - Customized for This Project

## Project-Specific Instructions

## Architecture Document Update - 2025-09-25 05:55:00

### System Overview Update
This section describes the architecture for a simple to-do application. The application will follow a straightforward three-tier architecture:  Presentation (UI), Application (Business Logic), and Data (Persistence).  Given the MVP scope, we will prioritize simplicity and ease of development.  Future iterations may consider a more complex microservices architecture if needed.

### Architecture Pattern Update
The chosen architectural pattern for this MVP is a simple Model-View-Controller (MVC) architecture.  This is suitable for the relatively straightforward functionality of the to-do app.  The separation of concerns between the model (data), view (UI), and controller (business logic) will be clearly defined.

### Component Design Update
- **Task Component:** Responsible for displaying individual tasks.  This will include functionalities for marking tasks as complete, editing, and deleting tasks.
- **TaskList Component:** Responsible for displaying the list of tasks.  This will include any filtering or sorting logic.
- **TaskCreation Component:** A form to create new tasks, including description and optional due date validation.
- **AppComponent:** The main application component, responsible for routing and potentially housing shared components.

### Data Architecture Update
For the MVP, a simple in-memory data store (e.g., using a JavaScript array or object) or local storage will be sufficient.  This approach avoids the complexity of setting up a database for the initial version.  The chosen persistence layer will be revisited in future iterations if the application grows beyond this initial scope.

### API Design Update
The API design is not applicable for this MVP as no backend is required.  Data interaction will be limited to client-side operations.

### Security Architecture Update
Security measures are minimal for this MVP. Client-side validation is sufficient to ensure data integrity; however, data is stored client-side, making the application vulnerable to loss of data when clearing browser data.  This will be re-evaluated in future phases. 

### Scalability Considerations Update
For this MVP, scalability concerns are minimal.  The chosen technologies and architecture are sufficient for a small-scale, single-user application.  Future scalability considerations will be addressed when needed.



## Technology Stack Document Update - 2025-09-25 05:55:00

Given the scope of the MVP for the to-do app, a simpler technology stack is chosen to minimize complexity and development time.  A more robust stack could be employed in future iterations.

### Frontend Technologies Update
- **Framework:**  React (for its simplicity and component-based approach)
- **Styling:**  CSS Modules (for modularity and maintainability)
- **State Management:** Context API (for efficient state management in React)

### Backend Technologies Update
- N/A (No backend required for MVP)

### Database Technologies Update
- N/A (In-memory data or local storage for MVP.  A database might be considered for future iterations)

### Infrastructure Update
- N/A (No server-side infrastructure needed for MVP)

### Development Tools Update
- **Version Control:** Git
- **Testing:** Jest and React Testing Library
- **CI/CD:**  GitHub Actions (optional, for future iterations)

## 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.
