PineScript MCP Documentation Server

AI-optimized Model Context Protocol (MCP) server for PineScript v6 development, providing comprehensive documentation access, style guide adherence, and code review capabilities specifically designed for AI coding agents.

Performance Metrics: 4,277x faster data access through memory-first architecture with <15ms response times.

Quick Start (2 minutes)

Installation & Verification:

# 1. Install and connect
npm install git+git@github.com:iamrichardD/mcp-server-pinescript.git
claude mcp add pinescript-docs node ./node_modules/mcp-server-pinescript/index.js

# 2. Verify connection
claude mcp list  # Should show "pinescript-docs: Connected ✓"

# 3. Test validation (this code has deliberate errors)
claude -p "Use pinescript_review to check: //@version=6
indicator('RSI Test', shorttitle='RSI_INDICATOR_WITH_LONG_TITLE', overlay=false, precision=15)
plot(ta.rsi(close,14))"

# Expected: 2 errors detected in <15ms with actionable fixes

Verification Indicators:

• Error detection: SHORT_TITLE_TOO_LONG (39 chars > 10 limit)
• Error detection: INVALID_PRECISION (15 > max allowed 8)
• Performance: Sub-15ms response times
• Output: Structured JSON with severity levels and fix suggestions

Core Capabilities

Documentation Search (pinescript_reference):

• Semantic search with synonym expansion across 457 functions + 427 variables
• Streaming delivery for large result sets via JSON chunks
• Enhanced keyword matching for technical terms

Code Review (pinescript_review):

• Directory support for entire PineScript projects
• Multi-format output (JSON, Markdown, streaming)
• Severity filtering (errors, warnings, suggestions)
• Real-time streaming for large codebases
• 9 validation rules with 100% test coverage

Basic Usage Commands

Code Validation:

claude -p "Use pinescript_review to check this code: [your PineScript code]"

Documentation Research:

claude -p "Use pinescript_reference to search 'array functions'"

Project Review:

claude -p "Use pinescript_review with source_type=directory, directory_path=./src"

Performance Verification:

time claude -p "Use pinescript_reference to search 'ta.sma'"
# Target: <15ms total response time

Integration Setup

Claude Desktop Integration - Add to @claude_desktop_config.json:

{
  "mcpServers": {
    "pinescript": {
      "command": "node",
      "args": ["/path/to/mcp-server-pinescript/index.js"]
    }
  }
}

Local Development Mode:

git clone https://github.com/iamrichardD/mcp-server-pinescript.git
cd mcp-server-pinescript && npm install && npm start
# Should show: "PineScript MCP Server ready with preloaded documentation!"

Performance & Architecture

Performance Characteristics:

• Response Times: 5-15ms for typical queries (70-85% faster than baseline)
• Memory Usage: ~12MB RAM with 555KB preloaded documentation
• Data Access: 0.0005ms average (4,277x faster than file I/O)
• Concurrency: High request throughput without file system contention

Design Patterns:

• Memory-first architecture with all documentation preloaded at startup
• Zero file I/O eliminates disk bottlenecks during request processing
• Streaming optimization for JSON chunk delivery of large datasets
• Hash-based lookups provide O(1) performance for documentation access

Development Workflow

Core Commands:

npm start                    # Start server (TypeScript)
npm run dev                  # Development mode with watch
npm test                     # Run all tests (617+ tests, <2ms atomic execution)
npm run quality:check        # Quick quality validation
npm run quality:fix          # Fix all quality issues
npm run build               # Build TypeScript
node comprehensive-test.js   # End-to-end integration test

Integration Testing:

# Run comprehensive end-to-end validation
node comprehensive-test.js

# Expected output:
# ✅ Data Foundation: 457 functions + 427 variables loaded
# ✅ Search Performance: <15ms (sub-1ms typical)  
# ✅ Validation Rules: SHORT_TITLE_TOO_LONG, INVALID_PRECISION detection
# ✅ Syntax Compatibility: Pine Script v6 validation working
# ✅ Overall Performance: All operations <15ms threshold

Version Management:

./scripts/set-session-type.sh [patch|minor|major]  # Set session type
npm run release:prepare                             # Prepare release
ln -sf ../../.githooks/* .git/hooks/               # Setup git hooks

Troubleshooting

Connection Issues:

• "command not found: claude" → Install @Claude Code CLI
• "Module not found" → Run npm install in project directory
• "Connection refused" → Verify server running and MCP registration path

Performance Issues:

• Slow responses (>50ms) → Check for "preloaded documentation" in startup logs
• Memory errors on large files → Use format=stream parameter
• No validation errors shown → Verify with known error patterns

Quick Diagnostics:

# Verify preloading performance
claude -p "Show pinescript_reference response time for 'indicator' search"

# Test streaming capability  
claude -p "Use pinescript_review with format=stream on large file"

# Check validation rules
claude -p "List available pinescript_review validation rules"

Documentation Structure

This project uses multi-audience documentation for optimal usability:

• @USER-GUIDE.md - Comprehensive integration guide for developers
• @MAINTAINER.md - Contributor and project maintenance documentation
• @AGENT.md - Universal agent configuration and architecture patterns
• @.project/AI-INTEGRATION.md - AI systems and MCP client integration

For detailed usage examples, advanced configuration, and production deployment patterns, see @USER-GUIDE.md.

Requirements & Quality

System Requirements:

• Node.js 18+ required
• Memory: ~12MB RAM (minimal requirements)
• AI Clients: Claude Desktop, Claude Code CLI, Cursor IDE
• API Access: Firecrawl API key (maintainers only for documentation updates)

Quality Metrics:

• Test reliability: 100% pass rate (617-658 tests)
• Response consistency: <2ms variation in execution
• Performance regression: Continuous monitoring prevents degradation
• Zero tolerance: All tests must pass before commits

Contributing

MIT License - see LICENSE file for details.

Contributing Process:

1. Fork the repository
2. Create a feature branch
3. Run quality checks: npm run quality:check
4. Submit pull request with passing tests

For issues and feature requests, please use the GitHub issue tracker.

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Performance Demonstration: This server demonstrates production-ready Agile Coaching + Atomic Testing + TypeScript Architecture with measured 4,277x performance improvements through memory-first design and streaming optimization.