Three Prompts: LLM Pine Scripts

LLM Pine Scripts - Professional TradingView indicator library

Introduction

The LLM Pine Scripts project represents a fascinating journey through the realities of platform integration and the importance of honest user communication. Created using just three carefully crafted prompts, this React-based application serves as a comprehensive Pine Script indicator library for TradingView users.

What makes this project particularly interesting isn't just its technical implementation, but the evolution it underwent—from ambitious feature attempts to a refined, honest solution that works within real platform constraints. It's a perfect example of how AI-driven development can navigate complex technical limitations while maintaining professional standards.

The final application showcases 8 professional Pine Script indicators with a clean, modern interface, complete with TradingView chart integration and a transparent approach to platform limitations.

The Three Prompts

Here are the exact prompts that were used to create this project, showing the iterative refinement process:

Prompt 1

@projects/llm-pine-scripts This will be a test ground for indicators, using pine script for trading view, I need this application to be fully working with trading view to view the indicators and a list of indicators to choose from with the concept of being able to purchase in the future



Your job is to execute the task.

Objectives:

- execute the task in a professional and concise manner
- Stay on task, no extra on unnecessary changes
- Don't write any extra content just execute
- Don't ask about editing files, start editing once ready

Execution Rules:

- Follow similar syntax of existing files
- Reuse existing packages/imports, ask before adding packages or running custom terminal commands
- Never start the project or run extra commands, that will be handled on it's own

Prompt 2

Now update in the following order


1. the button to add to trading view is opening the model and a new tab to trading view
2. the indicators should be able to be put into the chart on the page not have to go to a new tab and copy and past

Really review how to get the indicators working on this page...

Prompt 3

Ok, now I want you to remove the custom chart logic, and just show the copy modal, and add info telling the user that they can not view the indicators on this page because of a trading view limitation, this should overhaul the whole concept and only have working features

Prompt Evolution Analysis

Prompt 1 established the foundation with clear objectives: create a professional Pine Script indicator application with TradingView integration and purchase functionality. The emphasis on professional execution and staying focused proved crucial.

Prompt 2 attempted to enhance interactivity by fixing button behavior and enabling direct indicator visualization. This prompt revealed the core challenge: TradingView's embedded widgets have significant limitations that aren't immediately apparent.

Prompt 3 represents a pivotal moment—the decision to prioritize working features over ambitious but non-functional ones. This prompt led to the removal of custom chart logic and the implementation of honest, clear communication about platform limitations.

Technologies Used

The project leverages modern web technologies for optimal performance and user experience:

React 19.1.0 - Latest React with functional components and modern hooks
Vite 7.0.4 - Fast development server and optimized production builds
TradingView Embedded Widget API - Professional chart integration
Pure CSS - Modern styling with Grid, Flexbox, and responsive design
Pine Script v5 - Latest Pine Script syntax for all indicators
ESLint - Code quality and consistency enforcement

Key Features and Functionality

Professional Indicator Library

The application features 8 comprehensive technical indicators organized across four categories:

Trend: Simple Moving Average (SMA), Exponential Moving Average (EMA)
Momentum: Relative Strength Index (RSI), MACD, Stochastic Oscillator
Volatility: Bollinger Bands, Average True Range (ATR)
Volume: Volume Profile

Each indicator includes complete Pine Script v5 code, parameter documentation, and pricing information (ranging from free to $29.99 for premium indicators).

TradingView Integration

The application seamlessly integrates TradingView's professional charting widget, allowing users to:

View real-time market data for any trading symbol
Switch between different financial instruments dynamically
Access professional-grade charting tools

Code Management System

A sophisticated code viewing and management system provides:

Interactive Code Modal: Full-screen Pine Script code viewing
One-Click Copying: Instant code copying with visual feedback
Usage Instructions: Step-by-step TradingView Pine Editor integration guide
Parameter Documentation: Detailed explanations for each indicator parameter

User Experience Features

Real-Time Search: Instant filtering across indicator names and descriptions
Category Filtering: Organized browsing by technical analysis category
Responsive Design: Optimized for desktop and mobile devices
Professional Styling: Modern UI with consistent branding and typography

Implementation Details

Component Architecture

The application follows a clean, modular architecture:

App.jsx                 // Main application state and layout
├── IndicatorCard.jsx   // Individual indicator display
├── CodeModal.jsx       // Pine Script code viewing modal
└── TradingViewWidget.jsx // Chart integration component

Data Management

The indicator database (indicators.js) serves as a centralized repository containing:

Complete Pine Script v5 code for each indicator
Structured metadata (category, pricing, parameters)
Parameter documentation with types and defaults
Category classification system

Styling Approach

Each component maintains its own CSS file for optimal maintainability, following a mobile-first responsive design philosophy with a professional blue and white color scheme.

Challenges and Solutions

Challenge 1: TradingView Platform Limitations

The Problem: TradingView's embedded widgets cannot display custom Pine Script indicators—a fundamental platform constraint not immediately apparent from documentation.

Initial Approach: Attempted to create a custom JavaScript-based charting system with real-time indicator calculations using HTML5 Canvas.

Final Solution: Embraced platform limitations with honest, transparent communication. Added a prominent warning section explaining the constraint and providing clear instructions for proper TradingView Pine Editor usage.

Challenge 2: User Experience vs. Technical Reality

The Problem: Users naturally expect to see indicators directly applied to the embedded chart, creating a disconnect between expectations and technical possibilities.

Solution: Implemented a clear, professional limitation notice with step-by-step workflow guidance, transforming a technical constraint into an educational opportunity.

Challenge 3: Maintaining Professional Standards

The Problem: How to create a professional-looking application while acknowledging significant functional limitations.

Solution: Focused on what works exceptionally well—code viewing, copying, and organization—while being completely transparent about limitations. This honest approach actually enhanced credibility.

Challenge 4: Code Organization at Scale

The Problem: Managing multiple Pine Script indicators with complete metadata, parameters, and pricing information.

Solution: Developed a structured data format that serves as both a database and documentation system, making it easy to add new indicators and maintain existing ones.

Technical Achievements

Despite the platform constraints, the project achieved several notable technical successes:

Complete Pine Script Library: Eight fully functional Pine Script v5 indicators with professional-grade code
Seamless TradingView Integration: Proper implementation of embedded widget with dynamic symbol switching
Professional UI/UX: Modern, responsive design that handles limitations gracefully
Efficient Code Management: Streamlined system for viewing, copying, and understanding Pine Script code
Honest Communication: Clear, professional explanation of platform constraints with actionable guidance

Lessons Learned

This project offers valuable insights for developers working with third-party platform integrations:

Platform Research is Critical

Always thoroughly research platform capabilities and limitations before committing to specific features. What seems possible in marketing materials may have significant technical constraints.

Honest Communication Builds Trust

Transparently communicating limitations, rather than hiding them, actually enhances user trust and provides educational value.

Focus on What Works Well

When faced with platform constraints, doubling down on features that work exceptionally well can create more value than struggling with limitations.

Iterative Refinement is Powerful

The three-prompt evolution shows how iterative refinement can lead to better solutions than initial ambitious attempts.

Conclusion

The LLM Pine Scripts project demonstrates that successful software development isn't always about implementing every desired feature—sometimes it's about creating the best possible experience within real-world constraints.

By embracing TradingView's platform limitations and focusing on honest, transparent communication, the project evolved from an ambitious but partially non-functional application into a professional, trustworthy tool that genuinely serves its users.

The final application successfully provides:

A comprehensive library of professional Pine Script indicators
Seamless code viewing and copying functionality
Clear guidance for proper TradingView integration
A modern, responsive user interface
Honest communication about platform realities

For developers and traders interested in Pine Script development, this project serves as both a practical tool and a case study in navigating platform integration challenges with professionalism and transparency.