# io8 Business Analyst Agent - Customized for This Project

## Project-Specific Instructions

```
.sureai/.io8analyst_agent_yellow_calculator_app_yellow_calculator_app_20251004_113258.md
# io8Analyst Agent Prompt: Yellow Calculator App Project

## Project Context
This project aims to develop a fully functional "yellow calculator app" leveraging an existing Angular Clarity boilerplate. The primary focus is on core arithmetic operations, a distinctive "yellow" user interface, and containerized deployment. As the io8Analyst, your role is critical in defining precise business, functional, and non-functional requirements to guide development.

## Analysis Methodology Specific to this Project

### 1. Requirements Elicitation & Prioritization
- **Source Documents:** The `io8codermaster_breakdown.md` and `io8codermaster_plan.md` are the primary source for initial requirements.
- **Detailed Breakdown:** Systematically break down the "Key Features & Requirements" outlined in the `io8codermaster_breakdown.md` into granular, testable requirements.
- **UI/UX Focus:** Given the "yellow" theme and responsive design are core requirements, pay extra attention to detailing visual and interactive specifications. This includes color codes, contrast, font considerations, and responsive behavior.
- **Prioritization:** Assign High/Medium/Low priority to requirements based on the project goal of delivering a functional MVP quickly.

### 2. Business Analysis Framework
- **Project Goal Alignment:** Ensure all derived requirements directly support the overarching goal: "To develop a fully functional 'yellow calculator app' leveraging the cloned Angular Clarity boilerplate project. The app will provide core arithmetic operations with a distinctive yellow-themed user interface, packaged for containerized deployment."
- **Value Proposition:** The calculator provides a basic utility with a unique aesthetic (yellow theme) and modern tech stack (Angular, Clarity, Docker).
- **Stakeholder Identification:** The primary "stakeholder" is the end-user needing a basic calculator and the developers who will implement and maintain it. Requirements should cater to ease of use and maintainability.

### 3. Requirements Analysis Approach
- **Functional Decomposition:** Break down the calculator's operations (addition, subtraction, etc.) into discrete functions.
- **State Management Considerations:** Analyze how the calculator's state (current input, previous number, operator) will be managed. While the `io8codermaster_breakdown` mentions state management as optional for the boilerplate, the calculator's logic will necessitate a clear state model.
- **Error Condition Analysis:** Specifically analyze "division by zero" and "invalid input sequences." Define exact behaviors and user feedback for these scenarios.
- **UI/UX Specification:**
    - **Color Palette:** Define primary, secondary, and accent "yellow" colors (hex codes, RGB values) for buttons, display, and background to ensure consistency. Specify text color for readability against yellow.
    - **Layout:** Detail button grid layout, display size, and font properties.
    - **Responsiveness:** Specify breakpoints or general guidelines for how the layout adapts to mobile, tablet, and desktop.
    - **Visual Feedback:** Describe expected button press animations or highlights.

### 4. User Story Development Strategy
- **Perspective:** Focus on the "user" (someone needing to perform calculations).
- **Structure:** Use the standard "As a [type of user], I want [some goal] so that [some reason]" format.
- **Acceptance Criteria:** Each user story must have clear, measurable acceptance criteria that define when the story is complete and correctly implemented.
- **Examples:**
    - As a user, I want to press number buttons so that the numbers appear on the display.
    - As a user, I want to press the addition button after entering a number so that I can add another number.
    - As a user, I want to press the equals button so that I can see the result of my calculation.
    - As a user, I want the calculator to be predominantly yellow so that it matches the app's aesthetic.

## Customized io8Analyst Workflow for "Yellow Calculator App"

1.  **Analyze `io8codermaster_breakdown.md` and `io8codermaster_plan.md`:** Thoroughly review the project goal, key features, and milestones specifically for the "Yellow Calculator App" section.
2.  **Define Core Calculator Requirements:**
    *   **Input:** Numeric digits (0-9), decimal point.
    *   **Operations:** Add, Subtract, Multiply, Divide.
    *   **Control:** Clear (C), Equals (=).
    *   **Display:** Current input, result.
3.  **Specify "Yellow" Theming:**
    *   **Color Palette:** Research and propose specific hex codes for primary yellow, secondary yellow, text color on yellow, and background colors.
    *   **Consistency:** Ensure the yellow theme is applied consistently across all interactive elements and the overall app.
    *   **Contrast:** Recommend sufficient contrast for accessibility.
4.  **Detail Responsiveness:**
    *   **Layout:** How button grid and display adapt to small vs. large screens.
    *   **Font Sizes:** Scaling of numbers and operators.
5.  **Document Error Handling:**
    *   **Division by Zero:** Define specific display message (e.g., "Error," "Cannot divide by zero").
    *   **Invalid Sequences:** Specify how to prevent or alert (e.g., "Invalid input," reset state).
6.  **Create / Append `analysis_document.md`:**
    *   Add a detailed project overview for the calculator.
    *   Perform business analysis, user requirements extraction, functional and non-functional requirements breakdown, user stories, and business rules, all tailored to the calculator.
7.  **Create / Append `requirements_document.md`:**
    *   Formalize functional requirements (FR-XXX) with clear descriptions, acceptance criteria, and priority.
    *   Formalize non-functional requirements (NFR-XXX) covering performance, security (if applicable), usability, and look & feel (yellow theme).
    *   Include data requirements and interface requirements specific to the calculator.
8.  **Ensure Traceability:** Link all requirements back to the `io8codermaster_breakdown.md` where appropriate.
9.  **Prepare for Next Agents:** Provide highly detailed and actionable requirements for the `io8architect` to design the system and `io8developer` to implement.
```
{
  "analysis": "## Analysis Document\nGenerated: 2025-10-04T11:45:38\n\n### Project Overview - Yellow Calculator App\nThis project aims to develop a fully functional \"yellow calculator app\" by leveraging the existing Angular Clarity boilerplate project. The core objective is to deliver a robust calculator with essential arithmetic operations (addition, subtraction, multiplication, division), a distinct yellow-themed user interface, and responsive design, prepared for containerized deployment using Docker.\n\n### Business Analysis - Yellow Calculator App\n*   **User Need:** The fundamental business need is to provide a reliable, easy-to-use digital calculator for everyday arithmetic tasks. This satisfies a universal requirement across various user segments.\n*   **Market Context:** While numerous calculator apps exist, this project differentiates itself through its specific \"yellow\" branding as a core requirement and its foundation on a modern Angular Clarity boilerplate, showcasing best practices in frontend development and containerization.\n*   **Value Proposition:** For end-users, it offers a visually distinct and functional tool. For developers, it serves as an example of extending an Angular Clarity boilerplate with custom, theme-driven functionality and a clear path to containerized deployment.\n*   **Monetization/Value:** As an extension of an open-source boilerplate, its value is primarily in demonstrating capabilities, accelerating similar future developments, and potentially offering a customizable base for branded internal tools.\n\n### User Requirements - Yellow Calculator App\nBased on the `io8codermaster_breakdown.md`:\n*   **Core Arithmetic:** Users need to perform addition, subtraction, multiplication, and division operations.\n*   **Basic Control:** Users must be able to clear the current input/result and trigger calculations with an equals operation.\n*   **Numeric Input:** Users require buttons for digits 0-9 and a decimal point for fractional numbers.\n*   **Display:** The app must clearly show the numbers being entered and the results of calculations.\n*   **Visual Theme:** The calculator must have a predominant \"yellow\" color scheme for interactive elements and the overall interface.\n*   **Responsiveness:** The layout should adjust to work well on different screen sizes (mobile, tablet, desktop).\n*   **Intuitive UI:** The button layout should be easy to understand and use, with clear readability.\n*   **Error Feedback:** The app needs to handle specific errors like division by zero gracefully.\n*   **Containerized Deployment:** The final application should be deployable via Docker.\n\n### Functional Requirements - Yellow Calculator App\n*   **Numeric Input:** Allow users to input single-digit numbers (0-9).\n*   **Decimal Input:** Allow users to input a decimal point.\n*   **Arithmetic Operations:** Implement functions for addition, subtraction, multiplication, and division.\n*   **Clear Operation:** Provide a function to clear the current input or reset the calculator's state.\n*   **Equals Operation:** Execute the pending arithmetic operation and display the result.\n*   **Display Management:** Update the display to show current input and calculation results.\n*   **Error Handling (Division by Zero):** Detect and display a specific error message when division by zero occurs.\n*   **Input Validation:** Prevent or correct invalid input sequences (e.g., multiple consecutive operators).\n\n### Non-Functional Requirements - Yellow Calculator App\n*   **Performance:** The calculator should respond to user input instantaneously without noticeable lag.\n*   **Usability:** The interface should be intuitive and easy for new users to understand and operate. Button presses should provide clear visual feedback.\n*   **Look & Feel:** The application must adhere strictly to a predominantly \"yellow\" color scheme, as defined by specific color codes, across all UI elements (buttons, display background, theme).\n*   **Responsiveness:** The UI layout must dynamically adapt and maintain functionality and aesthetics across various screen sizes (mobile, tablet, desktop) without distortion.\n*   **Accessibility:** Text and numbers on the display and buttons must be clearly readable, ensuring sufficient contrast with the yellow theme.\n*   **Portability:** The application must be containerized using Docker, enabling consistent deployment across different environments.\n*   **Maintainability:** The codebase should be well-structured, modular, and adhere to Angular best practices, leveraging the Clarity boilerplate effectively.\n\n### User Stories - Yellow Calculator App\n*   **As a user, I want to press number buttons (0-9) so that the corresponding digits appear on the display.**\n    *   **Acceptance Criteria:** When I press '5', '5' is displayed. When I press '1' then '2', '12' is displayed.\n*   **As a user, I want to press the decimal point button so that I can input decimal numbers.**\n    *   **Acceptance Criteria:** When I input '1', '.', '5', '1.5' is displayed. Only one decimal point can be entered per number.\n*   **As a user, I want to press an operator button (+, -, *, /) after a number so that I can perform an arithmetic operation.**\n    *   **Acceptance Criteria:** After '5' is entered and '+' is pressed, '5' remains visible (or stored), and the calculator is ready for the next number.\n*   **As a user, I want to press the equals button (=) after entering a second number and an operator so that I can see the calculation result.**\n    *   **Acceptance Criteria:** Entering '5', '+', '3', '=' displays '8'.\n*   **As a user, I want to press the Clear button (C) so that I can reset the calculator to its initial state.**\n    *   **Acceptance Criteria:** After any input, pressing 'C' clears the display and resets all internal values to zero.\n*   **As a user, I want the calculator to prevent division by zero so that I don't get an invalid result.**\n    *   **Acceptance Criteria:** When '5', '/', '0', '=' is entered, the display shows \"Error\" or \"Cannot divide by zero\".\n*   **As a user, I want the calculator interface to be predominantly yellow so that it provides a distinctive visual experience.**\n    *   **Acceptance Criteria:** All calculator buttons, display background, and primary UI elements utilize the specified yellow color scheme.\n*   **As a user, I want the calculator to adapt its layout to different screen sizes so that I can use it comfortably on my phone or desktop.**\n    *   **Acceptance Criteria:** The button grid and display scale appropriately when the browser window is resized or on different devices.\n*   **As a user, I want to receive visual feedback when pressing buttons so that I know my input has been registered.**\n    *   **Acceptance Criteria:** Each button press triggers a distinct visual change (e.g., brief highlight, shadow effect).\n\n### Business Rules - Yellow Calculator App\n*   **BR-001: Division by Zero:** Division operations where the divisor is zero must result in an error state, not an infinite value or crash.\n*   **BR-002: Operator Precedence:** Operations are executed in the order they are entered (left-to-right) without complex mathematical operator precedence.\n*   **BR-003: Single Decimal Point:** A number can contain only one decimal point.\n*   **BR-004: Display Length:** The display should handle a reasonable number of digits (e.g., up to 10-12 digits) before truncating or using scientific notation (initial MVP might not include scientific notation).\n*   **BR-005: Input Sequence:** Multiple consecutive operator presses should either be ignored or replace the previous operator, not accumulate.\n",
  "requirements": "## Requirements Document\nGenerated: 2025-10-04T11:45:38\n\n### Functional Requirements - Yellow Calculator App\n\n#### FR-001: Numeric Input\n-   **Description:** The system shall allow users to input single-digit numbers (0-9) by clicking corresponding buttons.\n-   **Acceptance Criteria:**\n    -   When a numeric button is clicked, its digit appears on the display.\n    -   Consecutive numeric clicks append digits to the current number displayed.\n    -   Leading zeros for non-decimal numbers are suppressed (e.g., '05' becomes '5').\n-   **Priority:** High\n\n#### FR-002: Decimal Point Input\n-   **Description:** The system shall allow users to input a decimal point for fractional numbers.\n-   **Acceptance Criteria:**\n    -   When the decimal point button is clicked, a '.' appears on the display, appended to the current number.\n    -   Only one decimal point can be entered per number.\n-   **Priority:** High\n\n#### FR-003: Addition Operation\n-   **Description:** The system shall perform addition of two numbers.\n-   **Acceptance Criteria:**\n    -   Upon clicking the '+' button, the first number is stored, and the display is cleared or indicates readiness for the second number.\n    -   Upon clicking '=', the sum of the two numbers is calculated and displayed.\n-   **Priority:** High\n\n#### FR-004: Subtraction Operation\n-   **Description:** The system shall perform subtraction of two numbers.\n-   **Acceptance Criteria:**\n    -   Upon clicking the '-' button, the first number is stored, and the display is cleared or indicates readiness for the second number.\n    -   Upon clicking '=', the difference of the two numbers is calculated and displayed.\n-   **Priority:** High\n\n#### FR-005: Multiplication Operation\n-   **Description:** The system shall perform multiplication of two numbers.\n-   **Acceptance Criteria:**\n    -   Upon clicking the '*' button, the first number is stored, and the display is cleared or indicates readiness for the second number.\n    -   Upon clicking '=', the product of the two numbers is calculated and displayed.\n-   **Priority:** High\n\n#### FR-006: Division Operation\n-   **Description:** The system shall perform division of two numbers.\n-   **Acceptance Criteria:**\n    -   Upon clicking the '/' button, the first number is stored, and the display is cleared or indicates readiness for the second number.\n    -   Upon clicking '=', the quotient of the two numbers is calculated and displayed.\n-   **Priority:** High\n\n#### FR-007: Clear (C) Operation\n-   **Description:** The system shall provide a 'Clear' function to reset the calculator to its initial state.\n-   **Acceptance Criteria:**\n    -   Upon clicking the 'C' button, the display shows '0' (or empty), and all internal calculation states are reset.\n-   **Priority:** High\n\n#### FR-008: Equals (=) Operation\n-   **Description:** The system shall execute the pending arithmetic operation and display the final result.\n-   **Acceptance Criteria:**\n    -   Upon clicking the '=' button, the stored operation is performed using the current display value as the second operand.\n    -   The calculated result is displayed.\n-   **Priority:** High\n\n#### FR-009: Display Input and Result\n-   **Description:** The system shall continuously display the current input or the result of a calculation.\n-   **Acceptance Criteria:**\n    -   The display area clearly shows the digits being entered.\n    -   After an operation, the result is prominently displayed.\n    -   Numbers are formatted appropriately (e.g., standard decimal notation).\n-   **Priority:** High\n\n#### FR-010: Error Handling - Division by Zero\n-   **Description:** The system shall gracefully handle attempts to divide by zero.\n-   **Acceptance Criteria:**\n    -   If a division by zero is attempted, the display shows an error message (e.g., \"Error\" or \"Cannot divide by zero\").\n    -   The calculator should reset or allow a clear operation after the error.\n-   **Priority:** High\n\n#### FR-011: Invalid Input Sequence Prevention\n-   **Description:** The system shall prevent or gracefully handle sequences of invalid operator inputs.\n-   **Acceptance Criteria:**\n    -   Clicking multiple operator buttons consecutively (e.g., '+', then '-') should result in the last clicked operator replacing the previous one, not concatenating.\n    -   Entering an operator without a preceding number should not cause an error, but wait for a number.\n-   **Priority:** Medium\n\n## Non-Functional Requirements - Yellow Calculator App\n\n#### NFR-001: Performance (Responsiveness)\n-   **Description:** The calculator UI must respond to user interactions (button clicks) without noticeable delay, and calculations should be processed instantly.\n-   **Acceptance Criteria:**\n    -   Button clicks register and update the display within 100ms.\n    -   Basic arithmetic calculations complete within 50ms.\n-   **Priority:** High\n\n#### NFR-002: Usability (Intuitive Layout)\n-   **Description:** The calculator's button layout and overall design must be intuitive and easy to use for new users.\n-   **Acceptance Criteria:**\n    -   Buttons are clearly labeled with numbers and operators.\n    -   The arrangement of buttons follows standard calculator conventions (e.g., numbers in a grid, operators on the side).\n    -   Visual feedback (e.g., a brief hover/active state) is provided on button presses.\n-   **Priority:** High\n\n#### NFR-003: Accessibility (Readability of Yellow Theme)\n-   **Description:** The chosen yellow color scheme must ensure sufficient contrast for all text and numbers to be clearly readable.\n-   **Acceptance Criteria:**\n    -   Text/number colors against the yellow background meet WCAG AA contrast ratio guidelines (at least 4.5:1).\n    -   Font sizes for display and buttons are legible on all supported devices.\n-   **Priority:** Medium\n\n#### NFR-004: Look & Feel (Yellow Color Scheme)\n-   **Description:** The calculator application shall predominantly feature a \"yellow\" color scheme for its user interface, including buttons, display background, and overall theme elements.\n-   **Acceptance Criteria:**\n    -   The primary background color for the calculator is yellow (e.g., #FFD700 - Gold, #FFFF00 - Yellow, specific hex code to be confirmed by Architect).\n    -   All interactive buttons (numbers, operators, clear, equals) incorporate shades of yellow or highly contrasting colors that complement yellow.\n    -   The display background is yellow or a complementary color, ensuring numbers are clearly visible.\n-   **Priority:** High\n\n#### NFR-005: Responsiveness\n-   **Description:** The calculator's layout and functionality must adapt gracefully to various screen sizes, from mobile phones to desktop monitors.\n-   **Acceptance Criteria:**\n    -   The button grid resizes proportionally, maintaining button aspect ratios.\n    -   Display font size scales to remain readable on smaller screens.\n    -   No horizontal scrolling required on standard mobile devices (portrait mode).\n    -   Utilizes Angular Clarity's responsive layout features where applicable.\n-   **Priority:** High\n\n#### NFR-006: Portability (Docker Containerization)\n-   **Description:** The application must be deliverable as a Docker container, enabling consistent deployment.\n-   **Acceptance Criteria:**\n    -   A `Dockerfile.frontend` exists that successfully builds the Angular application into a Docker image.\n    -   The application can be run locally via `docker-compose up` using `docker-compose.yml` and `nginx.conf` configurations.\n-   **Priority:** High\n\n## Data Requirements - Yellow Calculator App\n\n*   **DR-001: Current Input Value:** Stores the number currently being entered by the user.\n*   **DR-002: Previous Operand:** Stores the first number entered in a binary operation (e.g., '5' in '5 + X').\n*   **DR-003: Current Operator:** Stores the pending arithmetic operator (e.g., '+', '-', '*', '/').\n*   **DR-004: Result:** Stores the outcome of a calculation.\n*   **DR-005: Display Value:** Represents the string value currently shown on the calculator's display.\n\n## Interface Requirements - Yellow Calculator App\n\n*   **IR-001: Calculator Grid Layout:** The calculator shall feature a grid-based layout for number and operator buttons, following conventional calculator designs.\n*   **IR-002: Display Area:** A clear, prominent display area at the top of the calculator for showing input and results.\n*   **IR-003: Button Styling:** Buttons shall be designed with a predominantly yellow theme, contrasting text/symbols, and visual feedback on press.\n*   **IR-004: Font Readability:** Fonts used for numbers and operators on buttons and the display shall be clear, bold, and easily readable.\n*   **IR-005: Theming Integration:** The yellow theme must be integrated into the Angular Clarity boilerplate's SCSS structure, potentially overriding or extending Clarity's default styling to achieve the desired look.\n*   **IR-006: Input Focus:** The display area should visually indicate it is ready for input (e.g., blinking cursor if applicable, though not strictly required for MVP)."
}
```

## Base Agent Prompt Reference

This agent is based on the standard io8analyst agent with project-specific customizations above.
Refer to the base io8analyst agent prompt for general principles and workflow instructions.
