Pine Script v6 Language Support - VS Code Extension

Complete Pine Script v6 language support with 100% construct coverage, intelligent IntelliSense, real-time diagnostics, and zero false positives. Community-driven open source project.

🎯 What is This?

A community-driven Visual Studio Code extension for Pine Script v6 developers. Write TradingView indicators and strategies with modern IDE features: intelligent code completion, real-time error detection, and comprehensive language support.

Key Achievement: 100% coverage of Pine Script v6 language constructs (all official language features from TradingView documentation).

Created by: Jaroslav Pantsjoha and the community.

✨ Key Features

🔍 Complete v6 Language Support

✅ All 31 constant namespaces recognized (xloc.*, yloc.*, extend.*, scale.*, display.*, hline.*, barmerge.*, font.*, text.*, order.*, currency.*, dayofweek.*, and more)
✅ All 27 standalone built-ins (ask, bid, time_close, time_tradingday, timenow, etc.)
✅ All 15 keywords (and, or, not, enum, export, import, method, type, var, varip, etc.)
✅ All 21 operators (+, -, *, /, ==, !=, ?:, =>, etc.)
✅ All 21 variable namespaces (barstate.*, syminfo.*, timeframe.*, strategy.*, etc.)
✅ All 22 function namespaces (ta.*, math.*, input.*, str.*, array.*, etc.)

🚫 Zero False Positives

// These are ALL valid v6 code - no errors!
x = xloc.bar_index
y = yloc.price
e = extend.both
s = scale.left
d = display.all
c = currency.USD
p = position.top_center

🎯 Real-Time Diagnostics

Detects undefined functions and variables
Catches missing required parameters
Identifies invalid Pine Script v6 syntax
Warns about too many arguments
Fast validation (< 100ms for typical scripts)

💡 Intelligent IntelliSense

457+ built-in functions with autocomplete
Parameter hints for all major functions
Hover documentation
Namespace-aware completions

📝 Syntax Highlighting

Complete Pine Script v6 syntax support
Built-in variables and constants highlighted
Function calls, keywords, and operators distinguished
Comment and string literal recognition

📦 Installation

From VSIX (Recommended for v0.4.0)

Download the latest release: pine-script-extension-0.4.0.vsix

Install in VS Code:

code --install-extension pine-script-extension-0.4.0.vsix

Reload VS Code:
- Press Cmd+Shift+P (Mac) or Ctrl+Shift+P (Windows/Linux)
- Type: Developer: Reload Window

From VS Code Marketplace (Coming Soon)

Open VS Code
Press Cmd+Shift+X (Mac) or Ctrl+Shift+X (Windows/Linux)
Search for "Pine Script v6 Professional"
Click Install

🚀 Quick Start

1. Create a New Pine Script File

# Create a file with .pine extension
touch my-indicator.pine

2. Start Coding

//@version=6
indicator("My First Indicator", overlay=true)

// Use all v6 features with full IntelliSense
length = input.int(20, "Length")
src = input.source(close, "Source")

// All namespaces recognized
sma = ta.sma(src, length)
ema = ta.ema(src, length)

// Plot with all style constants
plot(sma, "SMA", color.blue, style=plot.style_line)
plot(ema, "EMA", color.red, style=plot.style_linebr)

// Use all position constants
if ta.crossover(ema, sma)
    label.new(bar_index, high, "Buy",
             xloc=xloc.bar_index,
             yloc=yloc.abovebar,
             color=color.green,
             style=label.style_label_up)

3. See Real-Time Validation

Errors appear in the Problems panel
Squiggly underlines show issues inline
Hover for error details

📊 Pine Script v6 Documentation Parity

This extension provides 100% coverage of Pine Script v6 language constructs as documented in the official TradingView Pine Script v6 Reference.

Category	Coverage	Details
Constant Namespaces	31/31 (100%)	All `namespace.constant` patterns recognized
Built-in Variables	27/27 (100%)	All standalone variables (`close`, `ask`, `bid`, etc.)
Variable Namespaces	21/21 (100%)	All `namespace.*` variable patterns
Function Namespaces	22/22 (100%)	All `namespace.function()` patterns
Keywords	15/15 (100%)	All v6 keywords (`and`, `enum`, `export`, etc.)
Operators	21/21 (100%)	All v6 operators (`+`, `-`, `?:`, etc.)

See: V0.4.0 Coverage Analysis for detailed breakdown.

🔧 Parser & Validator Improvements (2025-10-06)

Recent Quality Enhancements (Dev Tools Only):

We've significantly improved the internal validation tool (MCP server) with a 54.1% error reduction:

Baseline: 853 false positive errors
Current: 392 errors remaining
Total improvement: -461 errors (-54.1%)

What was fixed:

✅ If/else indentation-based parsing
✅ For loop iterator variable scoping
✅ Type annotation parsing (int, float, bool, etc.)
✅ Multi-line function body type inference
✅ Built-in function signatures (variadic functions)
✅ All 48 Pine Script v6 namespaces recognized

Note: These improvements are in the development/QA tools only. The published VSCode extension's user-facing features (syntax highlighting, IntelliSense, hover docs) have always worked correctly and remain unchanged.

See: errors-fix.md for complete technical details and SESSION-4-CONTROL-FLOW-SUMMARY.md for latest changes.

🎓 Examples

Example 1: Multi-Timeframe Analysis

//@version=6
indicator("MTF Analysis", overlay=true)

// Request data from higher timeframe
htf_close = request.security(syminfo.tickerid, "D", close,
                             barmerge.gaps_on,
                             barmerge.lookahead_off)

// Plot with display options
plot(htf_close, "Daily Close",
     color=color.blue,
     display=display.all)

Example 2: Strategy with All Features

//@version=6
strategy("Complete Strategy", overlay=true)

// Use all input types
length = input.int(20, "Length")
src = input.source(close, "Source")
trade_type = input.string("Long", "Trade Type",
                          options=["Long", "Short", "Both"])

// Strategy execution
if ta.crossover(close, ta.sma(src, length))
    strategy.entry("Long", strategy.long)

if ta.crossunder(close, ta.sma(src, length))
    strategy.close("Long")

More examples: examples/ directory

🤝 Contributing

We welcome contributions! This is a community-driven project.

How to Contribute

Report Issues: Found a bug or false positive? Open an issue
Suggest Features: Have an idea? Share it in discussions
Submit PRs: Fix bugs, improve docs, add features

See: Contributing Guide for detailed instructions.

Development Setup

# Clone the repository
git clone https://github.com/YourGitHub/pine-script-vscode-extension.git
cd pine-script-vscode-extension

# Install dependencies
npm install

# Build and test
npm run rebuild

# Install locally for testing
code --install-extension build/pine-script-extension-0.4.0.vsix

🤖 MCP Integration - AI-Powered Validation

Status: ✅ Fully Operational (v1.0.0)

This project includes a Model Context Protocol (MCP) server that provides Pine Script v6 validation to AI assistants like Claude Code, Gemini, and other MCP-compatible tools.

What You Get

✅ Validate .pine files directly from Claude Code or other AI assistants
✅ Comprehensive error reporting with line numbers, severity levels, and detailed messages
✅ Zero setup required - automatically configured for VS Code workspace
✅ Works with file paths or code strings - validate files or inline code snippets
✅ Developer-friendly - JSON-RPC 2.0 protocol with full semantic analysis

Quick Start (VS Code + Claude Code)

The MCP server is automatically configured when you open this project in VS Code with Claude Code installed.

Just ask Claude:

"Validate the examples/global-liquidity.v6.pine file"

Features

Real-time validation via AI assistants
Comprehensive validator with semantic analysis (not just syntax checking)
Containerized validation with Docker for CI/CD pipelines
Easy integration with any MCP-compatible client

Documentation

Full MCP docs: MCP-INTEGRATION.md
Test the server: npm run test:mcp
Gemini-specific setup: mcp/README.md (legacy)

Example Output

{
  "source": "File: my-indicator.pine",
  "total_errors": 2,
  "summary": "❌ 2 error(s), 0 warning(s) found",
  "errors": [
    {
      "line": 10,
      "column": 5,
      "message": "Undefined variable 'my_var'",
      "severity": 0
    }
  ]
}

For Developers

# Test the MCP server
npm run test:mcp

# Run QA validation on all examples
npm run qa:pinescript

# Build Docker container
docker build -t pinescript-validator mcp/

🤖 AI Code Assistant - Gemini Pine Script v6 Expert

Want an AI assistant that's an expert in Pine Script v6? We've created a comprehensive context file for Google Gemini!

Features

6,665 official language constructs knowledge
100% v6 syntax mastery with zero false positives
Code generation following TradingView best practices
Anti-repainting patterns and performance optimization
Self-referencing documentation (auto-lookup from TradingView docs)

Quick Setup

Install Gemini CLI:

npm install -g @google-gemini/gemini-cli

Use the expert context:
```
gemini chat --context GEMINI.md
```

Ask Pine Script v6 questions:

> How do I prevent repainting with request.security()?
> Generate a strategy with trailing stop loss
> Optimize this indicator for performance

See: GEMINI.md - Complete Pine Script v6 expert system context

Gemini CLI: https://github.com/google-gemini/gemini-cli

📖 Documentation

For Users

Quick Start Guide - Get started in 5 minutes
Testing Guide - Verify everything works
Syntax Highlighting - Customize colors

For AI/LLM Development

GEMINI.md - Complete Pine Script v6 expert context for Gemini
AI Assistant Guide - Pine Script v6 agent workflows

For Contributors

Contributing Guide - How to contribute
Architecture - Technical decisions
Test Strategy - Testing approach

Project Info

Changelog - Version history
Coverage Analysis - What we validate

🐛 Known Limitations

This extension focuses on syntax validation, not runtime behavior:

✅ What We Validate

Syntax correctness (valid Pine Script v6 code)
Undefined functions/variables/namespaces
Missing required parameters
Too many parameters
Invalid constant references

❌ What We Don't Validate

Type mismatches (int vs float)
Runtime errors (division by zero, etc.)
Logic errors (impossible conditions)
Pine Script runtime limits (max variables, max plots, etc.)

These are intentional limitations - a syntax validator shouldn't predict runtime behavior.

📝 License

This project is licensed under the MIT License - see LICENSE for details.

No Warranty

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. See license for full details.

⚠️ Disclaimer

This is an independent community project and is not affiliated with, endorsed by, or sponsored by TradingView.

Pine Script™ is a trademark of TradingView, Inc.
All TradingView documentation references are for compatibility purposes only
Use at your own risk

🙏 Acknowledgments

TradingView - For creating Pine Script and providing comprehensive documentation
VS Code Team - For the excellent extension API
Contributors - Thank you to everyone who has contributed!

📬 Support

Issues: Report bugs via GitHub Issues
Questions: Ask in GitHub Discussions
Updates: Watch this repo for new releases

Made with ❤️ by the community, for the community.

Happy Trading! 📈

Pine Script v6 IDE Tools

Jaroslav Pantsjoha

Pine Script v6 Language Support - VS Code Extension

🎯 What is This?

✨ Key Features

🔍 Complete v6 Language Support

🚫 Zero False Positives

🎯 Real-Time Diagnostics

💡 Intelligent IntelliSense

📝 Syntax Highlighting

📦 Installation

From VSIX (Recommended for v0.4.0)

From VS Code Marketplace (Coming Soon)

🚀 Quick Start

1. Create a New Pine Script File

2. Start Coding

3. See Real-Time Validation

📊 Pine Script v6 Documentation Parity

🔧 Parser & Validator Improvements (2025-10-06)

🎓 Examples

Example 1: Multi-Timeframe Analysis

Example 2: Strategy with All Features

🤝 Contributing

How to Contribute

Development Setup

🤖 MCP Integration - AI-Powered Validation

What You Get

Quick Start (VS Code + Claude Code)

Features

Documentation

Example Output

For Developers

🤖 AI Code Assistant - Gemini Pine Script v6 Expert

Features

Quick Setup

📖 Documentation

For Users

For AI/LLM Development

For Contributors

Project Info

🐛 Known Limitations

✅ What We Validate

❌ What We Don't Validate

📝 License

No Warranty

⚠️ Disclaimer

🙏 Acknowledgments

📬 Support