Smart Context MCP Server 🎯 - AI Context Engineer

🚀 Version 2.0.0 - Major Update! Smart Context has evolved from a file selector to a comprehensive AI Context Engineer that generates complete context packages for LLMs. Transform vague queries into structured, actionable context with code, relationships, and insights.

🎯 What's New in v2.0.0

From File Selector to AI Context Engineer

Smart Context now acts as your personal AI Context Engineer, solving a critical problem: users often don't provide enough context for AI tools to work effectively. Instead of just suggesting files, it now:

• Extracts actual code from functions and relevant sections

• Maps relationships between files through imports/exports

• Recognizes error patterns and suggests fixes

• Generates structured packages optimized for AI consumption

• Works alongside grep to enhance, not replace, traditional search

New Tool: generate_context_package

The flagship feature that transforms any query into a complete context package:

// Before v2.0.0: Just file paths
["src/cart.js", "src/checkout.js"]

// After v2.0.0: Complete context with code
{
  "context": {
    "coreImplementation": {
      "code": "const getTotalPrice = () => { ... }",
      "function": "getTotalPrice",
      "lines": "48-56"
    }
  },
  "relationships": {
    "dependencies": [...],
    "provides": [...]
  },
  "suggestedFix": {
    "pattern": "NaN in calculation",
    "suggestion": "Check if item.price is undefined"
  }
}

Related MCP server: Context+

🚀 Quick Start

New to Smart Context? Follow our 5-minute setup guide to get started right away!

Already familiar with MCP? Jump to Installation below.

✨ Key Features

• 🧠 Semantic Understanding: Uses NLP to understand what you're trying to accomplish, not just keywords

• 🎯 Task-Specific Modes: Automatically adapts strategy for debugging, feature development, and refactoring

• 📊 Full Transparency: See confidence scores and reasoning behind every file recommendation

• 📈 Progressive Loading: Start with immediate context, expand when you need more

• 💬 Conversation Awareness: Remembers what files you've already seen to avoid repetition

• 🔗 Git Integration: Learns from your commit history to predict related files

• 🎓 Learning from Usage: Gets smarter over time by tracking which files actually helped you

• 🛡️ Robust Error Handling:

  • Works with any project (Git or non-Git)

  • Gracefully skips large or problematic files

  • Handles Unicode and special characters

  • Never crashes on file permission issues

• ⚡ Performance Optimized:

  • Fast parallel file processing (~85 files/second)

  • Smart caching for instant responses

  • Configurable limits to control resource usage

  • Memory-efficient for large codebases

📦 Installation

Choose the method that works best for you:

🌟 Method 1: NPM Package (Recommended)

Easiest for most users

npm install -g @crisnc100/smart-context-mcp

🔧 Method 2: Direct from GitHub

For developers who want the latest code

git clone https://github.com/crisnc100/smart-context-mcp.git
cd smart-context-mcp
npm install

🐳 Method 3: Docker (Experimental)

For containerized deployments

docker pull smartcontext/mcp-server:latest
docker run -it -v $(pwd):/workspace:ro smartcontext/mcp-server

📋 Need detailed setup instructions? See our comprehensive Installation Guide for platform-specific instructions.

Usage

For Claude Code CLI (Project-Specific)

Install in your project:

cd your-project
npm install @crisnc100/smart-context-mcp

Create .mcp.json in project root:

{
  "mcpServers": {
    "smart-context": {
      "command": "node",
      "args": ["./node_modules/@crisnc100/smart-context-mcp/src/index.js"],
      "env": {
        "PROJECT_ROOT": "."
      }
    }
  }
}

See CLAUDE_CODE_SETUP.md for detailed instructions.

For Claude Desktop (Global)

IMPORTANT: Smart Context needs to know WHERE your project files are located. You must set PROJECT_ROOT for each project.

For NPM Installation:

{
  "mcpServers": {
    "smart-context": {
      "command": "npx",
      "args": ["@crisnc100/smart-context-mcp"],
      "env": {
        "PROJECT_ROOT": "/path/to/your/project"
      }
    }
  }
}

For Local Installation:

{
  "mcpServers": {
    "smart-context": {
      "command": "node",
      "args": ["/path/to/smart_context_mcp/src/index.js"],
      "env": {
        "PROJECT_ROOT": "/path/to/your/project"
      }
    }
  }
}

For Codex CLI (OpenAI)

IMPORTANT: Codex CLI uses mcp_servers (underscore) rather than mcpServers (camelCase).

For NPM Installation (TOML format):

[mcp_servers.smart-context]
command = "npx"
args = ["-y", "@crisnc100/smart-context-mcp"]
env = { "PROJECT_ROOT" = "/path/to/your/project" }

For Local Installation (TOML format):

[mcp_servers.smart-context]
command = "node"
args = ["/path/to/smart_context_mcp/src/index.js"]
env = { "PROJECT_ROOT" = "/path/to/your/project" }

First Time Setup? Run the setup wizard tool in Claude:

Use the setup_wizard tool to check my Smart Context configuration

🛠️ Available Tools

🎯 setup_wizard - START HERE!

Configure Smart Context for your project. This is your first step!

What it does: Checks your configuration and helps set up Smart Context properly.

Key parameters:

• action: Choose 'check' to verify setup, 'configure' to set up a new project

• projectPath: Where your code lives

• projectName: A friendly name for your project

🚀 generate_context_package - AI Context Engineer (New in v2.0.0!)

Generate a complete context package with code, relationships, and insights for any task.

What it does: Acts as your AI Context Engineer - analyzes your query, extracts actual code, maps dependencies, and provides structured context that helps AI tools understand your codebase better.

Key parameters:

• query (required): Natural language description of your task

• currentFile: The file you're working on (optional)

• tokenBudget: Maximum tokens to use (default: 6000)

Returns: A structured context package containing:

• Understanding: What the AI understood from your query

• Context: Actual code extracted from relevant sections

• Relationships: Import/export dependencies and connections

• Suggested Fix: Pattern-based fix suggestions for common issues

• Summary: Task mode, confidence, and reasoning

Example - Debugging:

// Query: "getTotalPrice returns NaN when cart has items"
{
  "understanding": {
    "problemDescription": "getTotalPrice function returns NaN",
    "concepts": ["pricing", "cart", "calculation"],
    "entities": ["getTotalPrice", "cart", "items"]
  },
  "context": {
    "coreImplementation": {
      "file": "src/context/CartContext.js",
      "function": "getTotalPrice",
      "lines": "48-56",
      "code": "const getTotalPrice = () => {\n  return cartItems.reduce((total, item) => {\n    return total + (item.price * item.quantity);\n  }, 0).toFixed(2);\n};"
    }
  },
  "suggestedFix": {
    "pattern": "NaN in calculation",
    "confidence": 0.8,
    "suggestion": "Check if item.price or item.quantity are undefined/null"
  }
}

Example - Feature Development:

// Query: "add discount code feature to shopping cart"
{
  "understanding": {
    "taskType": "feature",
    "components": ["discount", "cart", "validation"],
    "relatedFeatures": ["pricing", "checkout"]
  },
  "relationships": {
    "dependencies": [
      {"file": "CartContext.js", "imports": ["useState", "useEffect"]},
      {"file": "api/checkout.js", "exports": ["applyDiscount", "validateCode"]}
    ],
    "provides": ["CartProvider", "useCart", "getTotalPrice"]
  }
}

🔍 get_optimal_context - File Selection Tool

Get the most relevant files for any coding task with grep commands.

What it does: Analyzes your task and returns the best files to include in context, plus grep commands to search for specific patterns.

Key parameters:

• task (required): Describe what you're trying to do ("fix login bug", "add new feature")

• currentFile: The file you're currently working on

• targetTokens: How many tokens you want to use (default: 6000)

• progressiveLevel: 1=immediate context, 2=expanded, 3=comprehensive

set_project_scope

Configure file patterns to include/exclude for large projects.

Parameters:

• name: Name for this scope configuration

• includePaths: Glob patterns to include (e.g., "src/**")

• excludePaths: Glob patterns to exclude

• maxDepth: Maximum directory depth

• activate: Whether to activate immediately

record_session_outcome

Provide feedback on which files were actually helpful.

Parameters:

• sessionId (required): Session ID from get_optimal_context

• wasSuccessful (required): Whether the task was completed successfully

• filesActuallyUsed: Array of files that were actually helpful

search_codebase

Semantic search across the codebase.

Parameters:

• query (required): Natural language search query

• limit: Maximum results to return (default: 10)

get_file_relationships

Get files related to a specific file.

Parameters:

• filePath (required): File to find relationships for

• relationshipType: 'import', 'git-co-change', or 'all'

analyze_git_patterns

Analyze git history for file relationships.

Parameters:

• commitLimit: Number of commits to analyze (default: 100)

get_learning_insights

Get insights about learned patterns.

Parameters:

• taskMode: Filter by 'debug', 'feature', or 'refactor'

apply_user_overrides

Apply manual file selection adjustments for learning.

Parameters:

• sessionId: Session ID from get_optimal_context

• added: Files manually added

• removed: Files manually removed

• kept: Files accepted as-is

Example Usage in Claude

// First time setup
Use the setup_wizard tool with action="check"

// Generate complete context package (v2.0.0 - AI Context Engineer)
Use generate_context_package with query="getTotalPrice returns NaN in cart"
Use generate_context_package to understand "how does the authentication system work"
Use generate_context_package for "add email notification when order ships"

// Get relevant files with grep commands
Use get_optimal_context to find files related to "fixing the user authentication flow"

// Search for specific concepts
Use search_codebase to find files containing "websocket connection handling"

// Configure for large projects
Use set_project_scope to only include src/** and exclude test files

How It Works

Version 2.0.0 - AI Context Engineer

Smart Context has evolved from a file selector to a comprehensive AI Context Engineer that:

1. Understands Your Query: Uses NLP to extract intent, concepts, entities, and error patterns

2. Extracts Real Code: Finds and extracts actual functions and code sections, not just file paths

3. Maps Relationships: Analyzes imports, exports, and dependencies between files

4. Suggests Fixes: Recognizes common error patterns (NaN, null, undefined) and suggests solutions

5. Enforces Token Budgets: Intelligently allocates tokens across different context sections

6. Learns From Usage: Tracks which files and code sections actually helped solve problems

Core Process

1. Query Analysis: Deep semantic understanding of your task

2. Multi-Factor Scoring: Files scored on semantic similarity, git history, imports, and learned patterns

3. Code Extraction: Pulls specific functions and relevant code sections

4. Relationship Mapping: Builds dependency graph of your codebase

5. Context Generation: Creates structured package optimized for AI consumption

Task Modes

• Debug Mode: Prioritizes recently changed files, error handlers, and test files

• Feature Mode: Focuses on interfaces, similar features, and type definitions

• Refactor Mode: Includes all usages, dependencies, and related tests

Configuration

The server can be configured through:

1. Configuration file (config/default.json)

2. Local overrides (config/local.json)

3. Environment variables

Configuration Options

{
  "context": {
    "defaultTokenBudget": 6000,
    "minRelevanceScore": 0.3,
    "progressiveLevels": {
      "immediate": 0.6,
      "expanded": 0.4,
      "comprehensive": 0.2
    }
  },
  "fileScanning": {
    "maxFileSize": 1048576,  // 1MB in bytes
    "ignorePatterns": ["node_modules/**", "*.log"]
  },
  "git": {
    "recentChangesHours": 48,
    "defaultCommitLimit": 100
  }
}

Environment Variables

• SMART_CONTEXT_TOKEN_BUDGET - Override default token budget

• SMART_CONTEXT_MIN_RELEVANCE - Minimum relevance score threshold

• SMART_CONTEXT_MAX_FILE_SIZE - Maximum file size to scan (in bytes)

• SMART_CONTEXT_GIT_COMMIT_LIMIT - Number of commits to analyze

Performance Optimization

For large projects:

1. Use Project Scopes: Configure include/exclude patterns with set_project_scope

2. Adjust Token Budget: Lower targetTokens for faster responses

3. Set Relevance Threshold: Increase minRelevanceScore to be more selective

4. Progressive Loading: Start with progressiveLevel: 1 for immediate context

Testing

Run the comprehensive test suite:

# All tests
npm run test:all

# Individual test suites
npm run test:scanner      # File scanning tests
npm run test:performance  # Performance benchmarks
npm run test:error        # Error handling tests
npm test                  # Full validation suite

Available Test Files

• test-final-validation.js - Main validation suite

• test-scanner.js - File scanning functionality

• test-performance.js - Performance benchmarks

• test-error-handling.js - Error handling tests

• test-cross-platform.js - Cross-platform compatibility

• test-mcp-server.js - MCP server functionality

• run-all-tests.js - Test runner for all suites

• Various scenario tests for query styles, edge cases, and real-world usage

📊 Performance

Performance characteristics:

• Scanning: ~85 files/second

• Response: <200ms (warm cache)

• Memory: ~30KB per file

• Accuracy: 85%+ relevance

🔍 How It Works

The Smart Context MCP Server uses a multi-factor scoring system:

1. Semantic Analysis: NLP understanding of your task

2. Import Graph: Traces code dependencies

3. Git History: Analyzes co-change patterns

4. Learning System: Improves from your feedback

5. Task Modes: Adapts strategy for debug/feature/refactor

See TEST_RESULTS_COMPREHENSIVE.md for technical details.

📚 Documentation

• Installation Guide - Platform-specific setup instructions

• Quick Start Guide - Get running in 5 minutes

• Setup Visual Guide - Step-by-step with screenshots

• API Documentation - Complete API reference

• Claude Code Setup - Setup for Claude Code CLI

• Docker Setup - Docker deployment guide

• Test Results - Comprehensive test analysis

• Feedback Analysis - User feedback and improvements

• Improvements v1.0.1 - Latest version improvements

• Troubleshooting - Common issues and solutions

🛠️ Troubleshooting

Common Issues

"No files found"

• Run setup_wizard with action="check" to verify configuration

• Ensure PROJECT_ROOT points to your actual project directory

• Check that the directory contains code files (.js, .ts, .py, etc.)

"Server doesn't appear in Claude"

• Fully restart Claude Desktop (not just reload)

• Check JSON syntax in your config file

• Verify the command path exists

Performance issues

• Use set_project_scope to limit scanning area

• Reduce token budget or increase relevance threshold

See TROUBLESHOOTING.md for comprehensive solutions and Issues for more help.

🤝 Contributing

Contributions are welcome! Please:

1. Fork the repository

2. Create a feature branch (git checkout -b feature/amazing)

3. Commit your changes (git commit -m 'Add amazing feature')

4. Push to the branch (git push origin feature/amazing)

5. Open a Pull Request

See CHANGELOG.md for version history.

📄 License

MIT License - see LICENSE for details.

🙏 Acknowledgments

• Built for the Model Context Protocol

• Inspired by the need for smarter context in LLM-assisted coding

• Pure JavaScript implementation for maximum compatibility

Ready to code smarter? Install Smart Context and let it learn what files matter for your tasks! 🚀