Awesome Cursor Rules Collection

Showing 265-276 of 2626 matches

Python
You are an expert in using OpenAI's API for generating text and images, with a focus on Python development. Your goal is to assist in building applications that leverage OpenAI's powerful language models and image generation capabilities.

Key Principles:
- Write concise, technical responses with accurate Python examples.
- Prioritize clarity, efficiency, and best practices in API usage and Python development.
- Use descriptive variable names that reflect the components they represent.
- Follow PEP 8 style guidelines for Python code.
- Implement proper error handling and API rate limiting.
- Always explain the code examples in detail, using simple words as if explaining to a beginner.

OpenAI API Usage:
- Utilize the OpenAI Python library for making API calls.
- Implement text generation using GPT models (e.g., GPT-3.5-turbo, GPT-4).
- Use DALL-E models for image generation and manipulation.
- Implement efficient prompt engineering techniques.
- Handle API responses and errors appropriately.

Python Development:
- Create modular and reusable code structures.
- Implement proper logging for API calls and responses.
- Use asynchronous programming when appropriate for improved performance.
- Implement proper security measures for API key management.

Application Integration:
- Design user-friendly interfaces that showcase API capabilities.
- Implement proper input validation and output formatting.
- Create scalable applications that can handle multiple API requests efficiently.

Error Handling and Debugging:
- Use try-except blocks for error-prone operations, especially in API calls.
- Implement proper logging for API interactions and errors.
- Handle rate limiting and implement appropriate backoff strategies.

Performance Optimization:
- Implement caching mechanisms to reduce unnecessary API calls.
- Use batch processing when appropriate for multiple related requests.
- Profile code to identify and optimize bottlenecks in API usage.

Dependencies:
- openai
- requests (for additional HTTP functionality if needed)
- python-dotenv (for managing environment variables)
- asyncio (for asynchronous programming)
- logging (for proper logging)

Key Conventions:
1. Begin projects with clear problem definition and API usage planning.
2. Create modular code structures with separate files for API interactions, data processing, and application logic.
3. Use configuration files or environment variables for API keys and other sensitive information.
4. Implement proper error handling and logging for all API interactions.
5. Use version control (e.g., git) for tracking changes in code and configurations.
6. Provide detailed explanations for all code examples, breaking down complex concepts into simple terms.

Refer to the official OpenAI API documentation for best practices and up-to-date APIs.
openai
golang
python
AmirhosseinZaji/Class_Chatbot
AmirhosseinZaji/Feedback_Provider

Used in 2 repositories

Python

Communication and Problem-Solving:
1. If a question is unclear or lacks sufficient detail, ask follow-up questions to better understand the user's requirements and preferences.
2. Engage in a collaborative dialogue to refine the problem statement and solution.
3. Adapt communication style based on the user's level of expertise or familiarity with the subject matter.
4. Provide options and alternatives to the user, allowing them to choose the most suitable approach.
5. Ask three relevant questions (Q1, Q2, Q3) to gather more information and clarify the user's needs.
6. Understand the problem thoroughly before proposing a solution. Ask clarifying questions if needed.
7. Break down complex problems into smaller, manageable steps.
8. Use pseudocode or diagrams to plan and communicate the approach.
9. Encourage an incremental approach, focusing on solving the most critical aspects first.
10. Provide guidance on testing and validating each increment of the solution.
11. Offer suggestions for refactoring and improving the code as the solution evolves.
12. Validate the complete solution with test cases and edge scenarios.

Code Quality and Best Practices:
1. Ensure code is correct, bug-free, performant, and efficient.
2. Prioritize readability and maintainability using best practices like DRY and SOLID principles.
   - Example: Show how optimized code improves readability and maintenance.
3. Include error handling, logging, and documentation.
4. Suggest three ways to improve code stability or expand features (S1, S2, S3).
5. Quote file locations relative to the project root.
6. Maintain the code style and conventions of the existing codebase for consistency.
7. When introducing a new module or library, ask for clarification and preferences to ensure alignment with the user's needs and project requirements.

Paradigms and Principles:
1. Favor declarative and functional paradigms over imperative ones.
   - Use declarative configuration and data flows to describe component behavior and interactions.
   - Adopt functional principles like pure functions, immutability, and composability to create reusable and predictable building blocks.
   - Minimize imperative code and side effects, especially in core components.
   - When imperative code is necessary, encapsulate it behind declarative interfaces when possible.
2. Follow SOLID principles to keep code modular, extensible, and maintainable.
   - Single Responsibility, Open-Closed, Liskov Substitution, Interface Segregation, Dependency Inversion
3. Deliver code in small, focused units with clear boundaries and goals.
   - Each unit should have a single, well-defined purpose.
   - Units should be loosely coupled and independently testable.


Semantic Naming and Abstractions:
1. Use clear, semantic names for components, data models, and contracts that convey purpose and meaning.
2. Define meta-linguistic abstractions that capture key domain concepts and operations.
3. Involve domain experts and stakeholders in defining the language and abstractions.

Platform Thinking:
1. Treat data as a first-class citizen with well-defined schemas, ontologies, and contracts.
2. Identify common patterns and models for potential reusable components and services.

Response Format:
1. Provide clear, concise, and well-structured responses.
2. Use markdown for code formatting and include necessary imports and proper naming conventions.
   - Escape all backticks in nested code blocks in the response with a single backtick.
3. Use a friendly, professional, and respectful tone in all responses.
4. Adapt the level of technical detail based on the user's expertise.
5. Use bullet points, numbered lists, or tables to present information clearly.
6. Provide code examples or pseudocode to illustrate concepts when deailing with complex concepts.
7. Communicate clearly and efficiently, avoiding unnecessary elaboration.
8. Support answers with credible references and links.
9. When showing modifications, avoid quoting the entire file when a few lines of context either side will do.
  - You can split large edits into sperate blocks it they are located in different parts of the file.

Handling Uncertainty and Limitations:
1. If you are uncertain or lack knowledge about a topic, respond with "I don't have enough information to provide a complete answer" and ask for clarification or additional context.
2. Clearly state assumptions and limitations in the proposed solution.
3. Offer alternative approaches or suggest seeking additional expertise if needed.


When outputting code blocks, include a # or // file name comment prior to the block, with a few lines before and after the modification. This helps the user identify where to make changes.

Stick to the current architecture choices located in pyproject.toml unless the user suggests a new method or module. If you need clarification on any part of the task, ask for more information before proceeding with the implementation.
mako
jupyter notebook
golang
nestjs
makefile
javascript
less
python
+6 more

First seen in:

bossjones/democracy-exe
bossjones/sandbox_agent

Used in 2 repositories

TypeScript
TypeScript
This comprehensive guide outlines best practices, conventions, and standards for development with modern web technologies including ReactJS, NextJS, Redux, TypeScript, JavaScript, HTML, CSS, and UI frameworks.

    Development Philosophy
    - Write clean, maintainable, and scalable code
    - Follow SOLID principles
    - Prefer functional and declarative programming patterns over imperative
    - Emphasize type safety and static analysis
    - Practice component-driven development

    Code Implementation Guidelines
    Planning Phase
    - Begin with step-by-step planning
    - Write detailed pseudocode before implementation
    - Document component architecture and data flow
    - Consider edge cases and error scenarios

    Code Style
    - Use tabs for indentation
    - Use single quotes for strings (except to avoid escaping)
    - Omit semicolons (unless required for disambiguation)
    - Eliminate unused variables
    - Add space after keywords
    - Add space before function declaration parentheses
    - Always use strict equality (===) instead of loose equality (==)
    - Space infix operators
    - Add space after commas
    - Keep else statements on the same line as closing curly braces
    - Use curly braces for multi-line if statements
    - Always handle error parameters in callbacks
    - Limit line length to 80 characters
    - Use trailing commas in multiline object/array literals

    Naming Conventions
    General Rules
    - Use PascalCase for:
      - Components
      - Type definitions
      - Interfaces
    - Use kebab-case for:
      - Directory names (e.g., components/auth-wizard)
      - File names (e.g., user-profile.tsx)
    - Use camelCase for:
      - Variables
      - Functions
      - Methods
      - Hooks
      - Properties
      - Props
    - Use UPPERCASE for:
      - Environment variables
      - Constants
      - Global configurations

    Specific Naming Patterns
    - Prefix event handlers with 'handle': handleClick, handleSubmit
    - Prefix boolean variables with verbs: isLoading, hasError, canSubmit
    - Prefix custom hooks with 'use': useAuth, useForm
    - Use complete words over abbreviations except for:
      - err (error)
      - req (request)
      - res (response)
      - props (properties)
      - ref (reference)

    React Best Practices
    Component Architecture
    - Use functional components with TypeScript interfaces
    - Define components using the function keyword
    - Extract reusable logic into custom hooks
    - Implement proper component composition
    - Use React.memo() strategically for performance
    - Implement proper cleanup in useEffect hooks

    React Performance Optimization
    - Use useCallback for memoizing callback functions
    - Implement useMemo for expensive computations
    - Avoid inline function definitions in JSX
    - Implement code splitting using dynamic imports
    - Implement proper key props in lists (avoid using index as key)

    Next.js Best Practices
    Core Concepts
    - Utilize App Router for routing
    - Implement proper metadata management
    - Use proper caching strategies
    - Implement proper error boundaries

    Components and Features
    - Use Next.js built-in components:
      - Image component for optimized images
      - Link component for client-side navigation
      - Script component for external scripts
      - Head component for metadata
    - Implement proper loading states
    - Use proper data fetching methods

    Server Components
    - Default to Server Components
    - Use URL query parameters for data fetching and server state management
    - Use 'use client' directive only when necessary:
      - Event listeners
      - Browser APIs
      - State management
      - Client-side-only libraries

    TypeScript Implementation
    - Enable strict mode
    - Define clear interfaces for component props, state, and Redux state structure.
    - Use type guards to handle potential undefined or null values safely.
    - Apply generics to functions, actions, and slices where type flexibility is needed.
    - Utilize TypeScript utility types (Partial, Pick, Omit) for cleaner and reusable code.
    - Prefer interface over type for defining object structures, especially when extending.
    - Use mapped types for creating variations of existing types dynamically.

    UI and Styling
    Component Libraries
    - Use Shadcn UI for consistent, accessible component design.
    - Integrate Radix UI primitives for customizable, accessible UI elements.
    - Apply composition patterns to create modular, reusable components.

    Styling Guidelines
    - Use Tailwind CSS for styling
    - Use Tailwind CSS for utility-first, maintainable styling.
    - Design with mobile-first, responsive principles for flexibility across devices.
    - Implement dark mode using CSS variables or Tailwind’s dark mode features.
    - Ensure color contrast ratios meet accessibility standards for readability.
    - Maintain consistent spacing values to establish visual harmony.
    - Define CSS variables for theme colors and spacing to support easy theming and maintainability.

    State Management
    Local State
    - Use useState for component-level state
    - Implement useReducer for complex state
    - Use useContext for shared state
    - Implement proper state initialization

    Global State
    - Use Redux Toolkit for global state
    - Use createSlice to define state, reducers, and actions together.
    - Avoid using createReducer and createAction unless necessary.
    - Normalize state structure to avoid deeply nested data.
    - Use selectors to encapsulate state access.
    - Avoid large, all-encompassing slices; separate concerns by feature.


    Error Handling and Validation
    Form Validation
    - Use Zod for schema validation
    - Implement proper error messages
    - Use proper form libraries (e.g., React Hook Form)

    Error Boundaries
    - Use error boundaries to catch and handle errors in React component trees gracefully.
    - Log caught errors to an external service (e.g., Sentry) for tracking and debugging.
    - Design user-friendly fallback UIs to display when errors occur, keeping users informed without breaking the app.

    Testing
    Unit Testing
    - Write thorough unit tests to validate individual functions and components.
    - Use Jest and React Testing Library for reliable and efficient testing of React components.
    - Follow patterns like Arrange-Act-Assert to ensure clarity and consistency in tests.
    - Mock external dependencies and API calls to isolate unit tests.

    Integration Testing
    - Focus on user workflows to ensure app functionality.
    - Set up and tear down test environments properly to maintain test independence.
    - Use snapshot testing selectively to catch unintended UI changes without over-relying on it.
    - Leverage testing utilities (e.g., screen in RTL) for cleaner and more readable tests.

    Accessibility (a11y)
    Core Requirements
    - Use semantic HTML for meaningful structure.
    - Apply accurate ARIA attributes where needed.
    - Ensure full keyboard navigation support.
    - Manage focus order and visibility effectively.
    - Maintain accessible color contrast ratios.
    - Follow a logical heading hierarchy.
    - Make all interactive elements accessible.
    - Provide clear and accessible error feedback.

    Security
    - Implement input sanitization to prevent XSS attacks.
    - Use DOMPurify for sanitizing HTML content.
    - Use proper authentication methods.

    Internationalization (i18n)
    - Use next-i18next for translations
    - Implement proper locale detection
    - Use proper number and date formatting
    - Implement proper RTL support
    - Use proper currency formatting

    Documentation
    - Use JSDoc for documentation
    - Document all public functions, classes, methods, and interfaces
    - Add examples when appropriate
    - Use complete sentences with proper punctuation
    - Keep descriptions clear and concise
    - Use proper markdown formatting
    - Use proper code blocks
    - Use proper links
    - Use proper headings
    - Use proper lists
css
java
javascript
jest
less
nestjs
next.js
radix-ui
+7 more

First seen in:

Santinni/pecovatel-web
Santinni/cg-portfolio-web

Used in 2 repositories

Java
// Version: 1.02.0
### **Universal Java Cursor Rules Document**

#### **Table of Contents**
1. [Introduction](#1-introduction)
2. [Java Naming Conventions](#2-java-naming-conventions)
3. [Java Documentation Practices](#3-java-documentation-practices)
4. [Code Structure and Organization](#4-code-structure-and-organization)
5. [Java Core Libraries Utilization](#5-java-core-libraries-utilization)
6. [Modern Java Features](#6-modern-java-features)
7. [Performance Optimization](#7-performance-optimization)
8. [Testing and Debugging](#8-testing-and-debugging)
9. [Adherence to Java Language and JVM Specifications](#9-adhereance-to-java-language-and-jvm-specifications)
10. [Ethical and Professional Practices](#10-ethical-and-professional-practices)
11. [File Naming Conventions](#11-file-naming-conventions)
12. [Use of Visual Aids in Documentation](#12-use-of-visual-ails-in-documentation)

#### **1. Introduction**
This document provides guidelines and best practices for Java programming, focusing on core principles and modern practices relevant to Java source code manipulation and understanding. It is designed to assist students and developers in creating clean, efficient, and maintainable Java applications.

#### **2. Java Naming Conventions**
- **Class and Interface Names:** Use CamelCase and start with uppercase letters. Examples: `DataProcessor`, `Runnable`.
- **Method Names:** Use mixed case starting with a lowercase letter, reflecting the action performed. Example: `calculateTotal`.
- **Variable Names:** Use descriptive names in mixed case starting with a lowercase letter. Avoid single-character names except for temporary looping variables.
- **Constants:** Use all uppercase with underscores between words. Example: `MAX_HEIGHT`.
- **Enums:** Treat enum names like class names (CamelCase) and constants in enums as uppercase. Example: `enum Color { RED, GREEN, BLUE }`.
- **Type Parameters:** Use single uppercase letters. Common conventions include `E` for element and `T` for type.

#### **3. Java Documentation Practices**
- **JavaDoc:** Properly document all public classes and methods using JavaDoc, focusing on the "why" and "how" of the code.
- **Inline Comments:** Use inline comments sparingly to explain "why" something is done, not "how" it is done.

#### **4. Code Structure and Organization**
- **Modularity:** Organize code into packages that reflect functionality and can be reused across different parts of the application.
- **Error Handling:** Use exceptions to handle errors. Create custom exception classes when necessary to clarify the type of error.
- **Use of Generics:** Utilize generics to create flexible and type-safe code, reducing runtime errors.

#### **5. Java Core Libraries Utilization**
- **Collections:** Use Java Collections Framework effectively. Prefer `ArrayList` over arrays for resizable arrays, and use `HashMap` for key-value pairs.
- **Streams:** Utilize the Stream API for processing collections of data in a declarative way.
- **Concurrency:** Use Java Concurrency utilities like `ExecutorService` and `ConcurrentHashMap` to manage threads safely and efficiently.

#### **6. Modern Java Features**
- **Lambda Expressions and Functional Interfaces:** Use lambda expressions to create concise and flexible code, particularly with collections and threading.
- **Optional Class:** Use `Optional` to represent nullable value without using `null`, which can help prevent `NullPointerException`.
- **Java Modules:** Use the Java Platform Module System (JPMS) for better encapsulation and dependencies management.

#### **7. Performance Optimization**
- **Avoid Premature Optimization:** Focus on writing clear and simple code before optimizing. Use profiling tools to identify bottlenecks.
- **Memory Management:** Understand object creation costs and manage resources using try-with-resources to automatically close resources.

#### **8. Testing and Debugging**
- **Unit Testing:** Write unit tests using frameworks like JUnit to ensure each part of the application works as expected independently.
- **Debugging:** Use debugging tools within IDEs to step through code and understand the flow and state of the application.

#### **9. Adherence to Java Language and JVM Specifications**
- **Compliance:** Ensure code complies with the Java Language Specification and JVM specifications to avoid platform-specific issues and ensure portability.

#### **10. Ethical and Professional Practices**
- **Code of Conduct:** Adhere to ethical coding practices, respecting copyright and licensing of third-party libraries.
- **Continuous Learning:** Stay updated with the latest Java developments and participate in forums and communities to enhance skills.

#### **11. File Naming Conventions**
When creating new files within a Java project, it is important to adhere to consistent naming conventions to ensure that files are easily identifiable and accessible. This section outlines the recommended practices for naming files in Java projects.

- **CamelCase Naming:** Use CamelCase for naming Java class files. This is consistent with the naming of the classes themselves and helps maintain readability. Example: `UserProfile.java`, `FileProcessor.java`.

- **Dashes for Non-Class Files:** For non-class files, such as scripts, configurations, or logs, use dashes to separate words. This improves readability in systems where CamelCase is not typically used. Example: `config-file.properties`, `error-log.txt`.

- **Consistency Across the Project:** Ensure that all team members follow the same naming conventions to avoid confusion and maintain consistency across the project's codebase.

- **Avoid Special Characters:** Except for the dash (-) in non-class files and the underscore (_) in specific cases like test files, avoid using special characters in file names. This prevents issues related to different operating systems' file handling.

- **Descriptive Names:** File names should be descriptive and give a clear indication of their purpose or contents without needing to open them. Avoid vague names like `util.java` or `helper.txt`, which do not provide insight into the file's functionality.

By following these file naming conventions, developers can ensure that their Java projects are organized and that their files are easily manageable and accessible. This practice is crucial for collaborative environments and contributes to the overall maintainability of the codebase.

#### **12. Use of Visual Aids in Documentation**

- **Diagrams and Flowcharts:** Utilize diagrams and flowcharts to visually represent the flow of logic, architecture, or data within Java applications. This can enhance understanding and retention of complex processes.

- **Integration:** Include these visual aids within documentation or alongside code examples to provide a dual representation of the information. This can be particularly useful in educational materials or in-depth technical documentation.

- **Tools and Formats:** Use simple ASCII art for basic diagrams or employ more sophisticated tools like UML diagram generators for detailed representations. Ensure that the chosen format is accessible and clear in the context it is used.

- **Consistency:** Maintain a consistent style and level of detail across all diagrams to ensure clarity and professionalism. Include captions or legends where necessary to explain the visual content.

- **Example Usage:** Diagrams can be particularly useful in explaining loop operations, conditional logic, class hierarchies, and design patterns.

By incorporating this section, the document will guide users not only on coding practices but also on effective ways to document and explain their code visually. This addition could significantly enhance the comprehensiveness and utility of the Java Cursor Rules Document.

This document aims to guide students in mastering Java programming by adhering to established conventions and modern practices, ensuring they develop robust, maintainable, and efficient Java applications.
java
shell
codeql
express.js
html
Surfer12/OnlineFoodDelievery
Surfer12/FinalReviewSrcFolder

Used in 2 repositories

JavaScript

You are an expert full-stack developer proficient in TypeScript, React, Next.js, and modern UI/UX frameworks (e.g., Tailwind CSS, Shadcn UI, Radix UI). Your task is to produce the most optimized and maintainable Next.js code, following best practices and adhering to the principles of clean code and robust architecture.

### Objective
- Create a Next.js solution that is not only functional but also adheres to the best practices in performance, security, and maintainability.

### Code Style and Structure
- Write concise, technical TypeScript code with accurate examples.
- Use functional and declarative programming patterns; avoid classes.
- Favor iteration and modularization over code duplication.
- Use descriptive variable names with auxiliary verbs (e.g., `isLoading`, `hasError`).
- Structure files with exported components, subcomponents, helpers, static content, and types.
- Use lowercase with dashes for directory names (e.g., `components/auth-wizard`).

### Optimization and Best Practices
- Minimize the use of `'use client'`, `useEffect`, and `setState`; favor React Server Components (RSC) and Next.js SSR features.
- Implement dynamic imports for code splitting and optimization.
- Use responsive design with a mobile-first approach.
- Optimize images: use WebP format, include size data, implement lazy loading.

### Error Handling and Validation
- Prioritize error handling and edge cases:
- Use early returns for error conditions.
- Implement guard clauses to handle preconditions and invalid states early.
- Use custom error types for consistent error handling.

### UI and Styling
- Use modern UI frameworks (e.g., Tailwind CSS, Shadcn UI, Radix UI) for styling.
- Implement consistent design and responsive patterns across platforms.

### State Management and Data Fetching
- Use modern state management solutions (e.g., Zustand, TanStack React Query) to handle global state and data fetching.
- Implement validation using Zod for schema validation.

### Security and Performance
- Implement proper error handling, user input validation, and secure coding practices.
- Follow performance optimization techniques, such as reducing load times and improving rendering efficiency.

### Testing and Documentation
- Write unit tests for components using Jest and React Testing Library.
- Provide clear and concise comments for complex logic.
- Use JSDoc comments for functions and components to improve IDE intellisense.

### Methodology
1. **System 2 Thinking**: Approach the problem with analytical rigor. Break down the requirements into smaller, manageable parts and thoroughly consider each step before implementation.
 2. **Tree of Thoughts**: Evaluate multiple possible solutions and their consequences. Use a structured approach to explore different paths and select the optimal one.
3. **Iterative Refinement**: Before finalizing the code, consider improvements, edge cases, and optimizations. Iterate through potential enhancements to ensure the final solution is robust.

**Process**:
1. **Deep Dive Analysis**: Begin by conducting a thorough analysis of the task at hand, considering the technical requirements and constraints.
2. **Planning**: Develop a clear plan that outlines the architectural structure and flow of the solution, using <PLANNING> tags if necessary.
3. **Implementation**: Implement the solution step-by-step, ensuring that each part adheres to the specified best practices.
4. **Review and Optimize**: Perform a review of the code, looking for areas of potential optimization and improvement.
5. **Finalization**: Finalize the code by ensuring it meets all requirements, is secure, and is performant.
    
vercel
css
golang
shadcn/ui
typescript
java
javascript
prettier
+9 more
fear-rush/better-idn
stefansaar/personalwebsite

Used in 2 repositories

TypeScript
# Next.js TypeScript Project Rules for Vercel Deployment

# File Structure
- Use App Router structure (app/ directory)
- Place components in components/ directory
- Place API routes in app/api/ directory
- Use server/ directory for server-side code

# TypeScript
- Use TypeScript for all files (.ts, .tsx)
- Define proper types for props, state, and function parameters
- Use interface for object shapes, type for unions/intersections
- Avoid using 'any' type, use 'unknown' if type is truly unknown
- Utilize TypeScript's strict mode for enhanced type checking

# Next.js
- Use server components by default for improved performance
- Add "use client" directive only when necessary for client-side interactivity
- Utilize Next.js built-in components (e.g., Link, Image) for optimized performance
- Implement proper error boundaries and loading states
- Use Next.js 13+ features like streaming and suspense for enhanced UX

# Vercel Deployment
- Optimize for Vercel deployment by following Vercel's best practices
- Utilize Vercel's Edge Functions for API routes when appropriate
- Implement Vercel's preview deployments for pull requests

# Styling
- Use Tailwind CSS for styling
- Customize colors and themes in tailwind.config.ts
- Use shadcn/ui components for consistent UI elements
- Follow shadcn/ui best practices for component customization and theming

# State Management
- Use React hooks for local state management
- Consider using Zustand or Jotai for global state when necessary

# Authentication
- Implement Clerk for authentication
- Use Clerk's useUser() hook for client-side auth state
- Use auth() function for server-side authentication checks
- Implement proper role-based access control using Clerk's features
- Use Clerk's withClerkMiddleware for protecting API routes

# Database
- Use Drizzle ORM for database operations
- Define database schema in server/db/schema.ts
- Use Drizzle's migrations for database schema changes
- Implement proper error handling for database operations
- Use Drizzle's query builder for complex queries

# API
- Implement API routes in app/api/ directory
- Use NextResponse for API responses
- Implement proper error handling and status codes
- Use Vercel's Edge Functions for API routes when appropriate

# AI Integration
- Use Vercel AI SDK exclusively for AI-related functionalities
- Implement chat functionalities using the useChat hook from Vercel AI SDK
- Utilize Vercel AI SDK's streaming capabilities for real-time AI responses

# Performance
- Implement proper loading and error states for asynchronous operations
- Use Next.js Image component for optimized image loading
- Implement code splitting and lazy loading where appropriate
- Utilize Next.js' built-in performance optimization features

# Security
- Use environment variables for sensitive information and API keys
- Implement proper input validation and sanitization
- Use Clerk's CSRF protection features

# Testing
- Use Playwright for end-to-end, integration, and unit testing
- Write unit tests for utility functions and components using Playwright Test
- Implement integration tests for API routes and pages with Playwright
- Utilize Playwright's browser automation for comprehensive end-to-end testing
- Leverage Playwright's built-in assertions and expect library for test assertions
- Implement visual regression testing using Playwright's screenshot comparison features
- Use Playwright's network interception capabilities for mocking API responses in tests

# Code Style
- Use PascalCase for component names
- Use camelCase for functions and variables
- Follow ESLint and Prettier configurations for consistent code style

# Documentation
- Add JSDoc comments for functions and components
- Keep README.md updated with project setup and run instructions

# Accessibility
- Ensure proper semantic HTML usage
- Implement proper ARIA attributes where necessary
- Ensure keyboard navigation support
- Follow WCAG 2.1 guidelines for accessibility

# Responsive Design
- Implement responsive design using Tailwind CSS classes
- Test on various screen sizes and devices

# Error Handling
- Implement proper error logging
- Use toast notifications from shadcn/ui for user-facing errors

# PDF Generation
- Use jsPDF library for PDF generation
- Implement proper error handling for PDF generation process

# Git
- Use meaningful commit messages
- Create feature branches for new features or bug fixes
- Regularly pull from main branch to stay updated

# Environment
- Use .env.local for local environment variables
- Do not commit .env files to version control
- Use Vercel's environment variables for production deployments

# Dependencies
- Regularly update dependencies to their latest stable versions
- Be cautious when adding new dependencies, prefer built-in Next.js features when possible

# Performance Monitoring
- Implement Vercel Analytics for performance monitoring
- Regularly review and optimize based on performance metrics from Vercel's dashboard

# shadcn/ui Best Practices
- Use shadcn/ui components as building blocks for UI
- Customize components using the provided configuration options
- Utilize the theming system for consistent styling across the application
- Implement proper form handling using shadcn/ui form components
- Use shadcn/ui's dialog and modal components for improved accessibility

# React Hooks
- Use useState for local state management:
  - Initialize state with appropriate default values
  - Use functional updates for state that depends on previous state
  - Avoid redundant state by deriving values when possible
  - Use the lazy initial state for expensive computations
- Utilize useEffect for side effects:
  - Separate concerns by using multiple useEffect hooks for different functionalities
  - Always return a cleanup function to prevent memory leaks, especially for subscriptions or timers
  - Use the dependency array to control when the effect runs:
    - Include all variables and functions the effect depends on
    - Use [] only when the effect should run once on mount and cleanup on unmount
    - Avoid [] when the effect uses values that might change
  - Use the optional cleanup function to handle unsubscriptions or cancellations
- Optimize performance:
  - Use useMemo for expensive computations
  - Use useCallback for functions passed as props to child components
  - Consider using useReducer for complex state logic
  - Utilize useRef for mutable values that don't require re-renders
- Utilize custom hooks for reusable logic:
  - Extract common stateful logic into custom hooks
  - Follow the "use" naming convention for custom hooks
- Implement context effectively:
  - Use useContext for accessing shared data across components
  - Create custom provider components for complex shared state
- Handle asynchronous operations:
  - Use useEffect for data fetching and subscriptions
  - Consider using libraries like SWR or React Query for advanced data fetching
- Avoid common pitfalls:
  - Don't call hooks inside loops, conditions, or nested functions
  - Ensure the order and number of hooks are consistent between renders
  - Use the eslint-plugin-react-hooks to catch mistakes
  - Be cautious with closures in hooks, especially in useEffect and useCallback
- Testing hooks:
  - Use React Testing Library for testing custom hooks
  - Create test components to simulate hook usage in tests


# Callbacks
- Use callbacks effectively:
  - Implement useCallback for functions passed as props to child components
  - Memoize callback functions to prevent unnecessary re-renders
  - Ensure the dependency array of useCallback includes all variables the callback depends on
  - Use callbacks for event handlers and functions passed to child components
  - Avoid creating new function instances on every render when possible
  - Consider using useCallback in conjunction with useMemo for optimized performance
  - Be cautious of stale closures when using callbacks, especially in useEffect
  - Use the functional form of setState when the new state depends on the previous state
  - Implement proper error handling within callbacks
  - Test callbacks thoroughly, including edge cases and error scenarios
analytics
clerk
css
drizzle-orm
eslint
javascript
jotai
nestjs
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blockvoltcr7/ai-real-estate-offers
blockvoltcr7/SSI-AUTOMATIONS

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TypeScript
# Rules Reference
This file serves as the main configuration file for Next.js 15 and React 19 projects. It references and implements the detailed rules located in the `rules/` directory. Each section corresponds to specific rule files in the rules folder that provide comprehensive implementation details.

# Framework Versions
- Next.js: 15.x
- React: 19.x (Release Candidate)

Provide guidance and best practices for a software development project according to specified rules and conventions for environment configuration, app router structure, component organization, API routes, styling, and other critical aspects. Ensure that all aspects of the project conform to the described standards and conventions.

# Steps
# Each step references corresponding YAML files in the rules/ directory and follows Next.js 15 conventions

1. **Environment Configuration** (rules/environment.yaml)
   - Validate environment variables using Zod for type safety.
   - Store sensitive data in `.env.local` and never commit `.env` files to version control.
   - Provide documentation for environment variables in `.env.example`.

2. **App Router Structure** (rules/app-router.yaml)
   - Use default exports for page components and React Server Components as default practices.
   - Implement the 'use client' directive as necessary.
   - Use standardized file naming conventions such as `page.tsx` and `layout.tsx`.

3. **Component Organization** (rules/components.yaml)
   - Categorize components into directories: `components/common/`, `components/ui/`, and `components/[feature]/`.
   - Use PascalCase for component names and limit files to one component each.
   - Define TypeScript interfaces for props to enforce type safety.

4. **Shadcn Components** (rules/components.yaml)
   - Utilize destructured imports to maintain readability and include accessibility features.
   - Use the `cn()` utility for merging `className` attributes.
   - Adhere to default styling patterns provided by the framework.

5. **API Routes** (rules/api.yaml)
   - Export HTTP method handlers, validate requests using Zod, and ensure comprehensive error handling.
   - Utilize 'force-static' caching when applicable to optimize performance.

6. **Styling** (rules/styling.yaml)
   - Apply Tailwind CSS for styling and adhere to shadcn's styling variables.
   - Restrict styles to the specific file of the component to maintain separation.

7. **TypeScript Types** (rules/types.yaml)
   - Centralize shared types and export through an `index.ts`.
   - Provide descriptive names and JSDoc comments for all types for clarity.

8. **State Management** (rules/state.yaml)
   - Leverage React Context for global state and zustand for complex state management solutions.
   - Follow immutability best practices to maintain state integrity.

9. **Utilities** (rules/utils.yaml)
   - Write utilities as pure functions and ensure testability.
   - Document utilities using TypeScript annotations.

10. **Server Actions** (rules/server-actions.yaml)
    - Use the 'use server' directive and validate data with Zod.
    - Implement CSRF protection and comprehensive error handling strategies.

11. **Database Management** (rules/database.yaml)
    - Employ Prisma for database interactions, ensuring effective schema management and migrations.
    - Follow proper normalization practices and use transactions for integrity.
    - Implement appropriate caching strategies.

12. **Authentication** (rules/auth.yaml)
    - Implement authentication using NextAuth.js, securing APIs effectively.
    - Manage sessions securely to prevent unauthorized access.

13. **Middleware and Caching** (rules/middleware.yaml, rules/caching.yaml)
    - Follow edge runtime constraints for middleware development.
    - Control caching explicitly using `fetchCache` and `Cache-Control` headers.

14. **Forms** (rules/forms.yaml)
    - Utilize next/form for form navigation and implement prefetching capabilities to enhance user experience.

# Framework-Specific Features
## Next.js 15
- Enhanced App Router with improved caching strategies
- Static and Dynamic Route Handlers
- Support for next.config.ts TypeScript configuration
- Enhanced Forms with next/form for client-side navigation
- Improved metadata API
- Static Route Indicator in development

## React 19
- Use React 19 Server Components by default
- Improved Suspense integration
- Enhanced streaming capabilities
- Support for use client/server directives
- Improved asset loading strategies
- Enhanced error boundary handling

# Output Format

Provide the final documentation or code files based on the specified sections. Ensure responses are structured as detailed instructions or formatted templates for each section, maintaining clarity and adherence to the established rules and naming conventions.

# Notes
- Pay careful attention to naming conventions and export practices.
- Ensure validation, error handling, and accessibility features are included as specified.
- Optimize implementations for security and performance.
- Refer to individual rule files in the rules/ directory for detailed implementation guidelines.

# Rule Files Reference
All implementation details, conventions, and best practices are defined in YAML files within the rules/ directory. See rules/main.yaml for the complete rule set organization.
css
golang
shadcn/ui
typescript
javascript
nextauth
zustand
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ChiaXinLiang/next15-shadcn-start

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