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SAGE-MCP

by david-strejc
OverviewInspectNewSchemaRelated ServersScore
Python
Remote
10

🧙 SAGE-MCP: Simple AI Guidance Engine for Claude

Version License Claude Python

Universal AI assistant MCP server with intelligent mode selection, conversation continuity, and smart file handling

SAGE-MCP transforms Claude into a multi-talented development assistant that adapts to your needs. Whether you're debugging code, planning architecture, writing tests, or having a technical discussion, SAGE automatically selects the right approach and model for optimal results.

✨ Key Features

🎯 Intelligent Mode System

  • chat - Natural conversations with context awareness

  • analyze - Deep code analysis and pattern recognition

  • review - Comprehensive code reviews with actionable feedback

  • debug - Systematic debugging and root cause analysis

  • plan - Strategic project planning and architecture design

  • test - Test generation with coverage analysis

  • refactor - Code improvement and modernization

  • think - Deep reasoning with adjustable thinking depth

🔄 Conversation Continuity

  • Seamless multi-turn conversations across different modes

  • Automatic context preservation between tool calls

  • Smart file deduplication - never re-read the same files

  • Thread-based memory system for long-running tasks

🤖 Smart Model Selection

  • Auto mode - Intelligent model selection based on task complexity

  • Support for multiple providers: OpenAI, Anthropic, Google, OpenRouter

  • Model restrictions via environment variables for cost control

  • Thinking depth control: minimal (0.5%), low (8%), medium (33%), high (67%), max (100%)

📁 Intelligent File Handling

  • embedded - Full file content in context (default)

  • summary - Token-efficient summaries for large codebases

  • reference - File storage with ID references

  • Automatic directory expansion and smart deduplication

  • Security validation for all file operations

🌐 Web Search Integration

  • Real-time documentation lookup

  • Best practices and current standards

  • Framework and library research

  • Error and issue investigation

🎨 Mode Specializations

Mode

Temperature

Description

Best For

chat

0.5

Natural conversations with balanced creativity

Q&A, brainstorming, explanations

analyze

0.2

Focused precision for code analysis

Architecture review, pattern detection

review

0.3

Systematic evaluation with consistent standards

Security audits, best practices

debug

0.1

Deterministic analysis for troubleshooting

Error investigation, root cause analysis

plan

0.4

Strategic thinking for project planning

Architecture design, task breakdown

test

0.2

Accurate test generation with edge cases

Unit tests, integration tests

refactor

0.3

Careful improvements preserving functionality

Code modernization, optimization

think

0.7

Creative problem solving with deep reasoning

Complex algorithms, system design

🚀 Quick Start

Installation

# Clone the repository git clone https://github.com/david-strejc/sage-mcp cd sage-mcp # Install dependencies pip install -r requirements.txt # Configure your API keys export OPENAI_API_KEY="your-key-here" export ANTHROPIC_API_KEY="your-key-here" export GOOGLE_API_KEY="your-key-here" export OPENROUTER_API_KEY="your-key-here"

Claude Desktop Configuration

Add to your Claude Desktop MCP settings:

{ "mcpServers": { "sage": { "command": "python", "args": ["/path/to/sage-mcp/server.py"], "env": { "OPENAI_API_KEY": "your-key", "ANTHROPIC_API_KEY": "your-key", "DEFAULT_MODEL": "gpt-4o", "DEFAULT_PROVIDER": "openai" } } } }

📖 Usage Examples

Basic Chat

// In Claude: Use sage tool to explain how async/await works in Python

Code Analysis with Files

// Analyze specific files Use sage tool in analyze mode to review the architecture of ./src/api/ // With model selection Use sage with model gpt-4o to analyze performance bottlenecks in server.py

Multi-turn Conversations

// First turn Use sage to help me design a caching system // Continue the conversation (Claude will auto-continue) Now let's implement the LRU cache we discussed // Files are automatically deduplicated across turns

Deep Thinking Mode

// For complex problems requiring deep reasoning Use sage in think mode with thinking_mode="high" to solve this algorithmic challenge: [problem description]

Smart File Handling

// Token-efficient mode for large codebases Use sage with file_handling_mode="summary" to review the entire project structure // Reference mode for iterative work Use sage with file_handling_mode="reference" to start refactoring the database layer

⚙️ Configuration

Environment Variables

# Provider Configuration DEFAULT_PROVIDER=openai # Default: auto DEFAULT_MODEL=gpt-4o # Default: auto FALLBACK_MODEL=gpt-4o-mini # Fallback for errors # Model Restrictions (optional) ALLOWED_MODELS=gpt-4o,gpt-4o-mini,claude-3-5-sonnet DISALLOWED_MODELS=o1-preview,o1 # Expensive models to exclude # Feature Flags WEBSEARCH_ENABLED=true # Enable web search FILE_SECURITY_CHECK=true # Validate file paths AUTO_MODEL_SELECTION=true # Smart model selection # Token Limits MAX_TOKENS_GPT4O=128000 MAX_TOKENS_CLAUDE=200000 MAX_THINKING_TOKENS_O1=100000

Mode-Specific Temperatures

Default temperatures optimized for each mode:

  • chat: 0.5 - Balanced creativity

  • analyze: 0.2 - Focused precision

  • review: 0.3 - Systematic evaluation

  • debug: 0.1 - Deterministic analysis

  • plan: 0.4 - Strategic thinking

  • test: 0.2 - Accurate test generation

  • refactor: 0.3 - Careful improvements

  • think: 0.7 - Creative problem solving

🔧 Advanced Features

Conversation Continuation

# Start conversation response = sage(mode="chat", prompt="Let's design a web app") # Returns: continuation_id: abc123 # Continue in same mode sage(mode="chat", prompt="What database should we use?", continuation_id="abc123") # Switch modes seamlessly sage(mode="analyze", prompt="Review our database schema", files=["/db/schema.sql"], continuation_id="abc123")

Smart File Handling

# Multiple modes available sage(mode="review", files=["/src", "/tests"], # Auto-expands directories file_handling_mode="embedded", # Full content (default) prompt="Security review") sage(mode="analyze", files=["/large/codebase"], file_handling_mode="summary", # Summaries only (saves tokens) prompt="Architecture overview") sage(mode="debug", files=["/logs"], file_handling_mode="reference", # Store with IDs prompt="Analyze error patterns")

Model Restrictions

# Environment variables for cost control OPENAI_ALLOWED_MODELS=o3-mini,gpt-4o-mini GOOGLE_ALLOWED_MODELS=gemini-2.0-flash-exp,gemini-1.5-pro BLOCKED_MODELS=gpt-4,claude-opus DISABLED_MODEL_PATTERNS=expensive,legacy # Auto mode requires model selection when restricted DEFAULT_MODEL=auto # Forces explicit model choice

Supported Models

Provider

Models

Configuration

OpenAI

gpt-4o, gpt-4o-mini, o1, o3-mini

OPENAI_API_KEY

Anthropic

claude-3-5-sonnet, claude-3-5-haiku

ANTHROPIC_API_KEY

Google

gemini-2.0-flash-exp, gemini-1.5-pro

GOOGLE_API_KEY

OpenRouter

100+ models from all providers

OPENROUTER_API_KEY

Custom/Ollama

llama3.2, mistral, codestral

CUSTOM_API_URL

Complete Configuration Reference

Variable

Description

Example

API Keys

OPENAI_API_KEY

OpenAI API key

sk-...

ANTHROPIC_API_KEY

Anthropic Claude API key

sk-ant-...

GEMINI_API_KEY

/

GOOGLE_API_KEY

Google Gemini API key

AIzaSy...

OPENROUTER_API_KEY

OpenRouter API key

sk-or-...

XAI_API_KEY

xAI (Grok) API key

xai-...

CUSTOM_API_URL

Custom/Ollama API endpoint

http://localhost:11434

CUSTOM_API_KEY

Custom API key (if required)

custom-key

Model Selection

DEFAULT_MODEL

Default model (

auto

for selection)

o3

,

gpt-5

,

auto

Model Restrictions

OPENAI_ALLOWED_MODELS

Allowed OpenAI models

o3,gpt-5

GOOGLE_ALLOWED_MODELS

Allowed Google models

gemini-2.5-pro,gemini-2.5-flash

ANTHROPIC_ALLOWED_MODELS

Allowed Anthropic models

claude-3-5-sonnet

BLOCKED_MODELS

Blocked models (any provider)

gpt-4,o3-mini

DISABLED_MODEL_PATTERNS

Disable by pattern

anthropic,claude,mini

Limits & Performance

MAX_FILE_SIZE

Maximum file size in bytes

5242880

(5MB)

MCP_PROMPT_SIZE_LIMIT

MCP transport limit

50000

MAX_CONVERSATION_TURNS

Max turns per conversation

20

CONVERSATION_TIMEOUT_HOURS

Conversation timeout

3

Memory & Storage

REDIS_URL

Redis connection for memory

redis://localhost:6379/0

REDIS_DB

Redis database number

0

Temperature Overrides

TEMPERATURE_CHAT

Chat mode temperature

0.7

TEMPERATURE_ANALYZE

Analyze mode temperature

0.3

TEMPERATURE_DEBUG

Debug mode temperature

0.2

TEMPERATURE_PLAN

Plan mode temperature

0.4

TEMPERATURE_TEST

Test mode temperature

0.3

TEMPERATURE_REFACTOR

Refactor mode temperature

0.4

TEMPERATURE_REVIEW

Review mode temperature

0.5

TEMPERATURE_THINK

Think mode temperature

0.8

🏗️ Architecture

sage-mcp/ ├── server.py # FastMCP server entry point ├── config.py # Configuration management ├── tools/ │ └── sage.py # Universal SAGE tool ├── modes/ # Specialized AI modes │ ├── base.py # Base mode handler │ ├── chat.py # Conversational mode │ ├── analyze.py # Code analysis mode │ ├── debug.py # Debugging mode │ └── ... ├── providers/ # AI provider integrations │ ├── openai.py │ ├── anthropic.py │ ├── gemini.py │ └── openrouter.py ├── models/ # Model management │ ├── manager.py # Intelligent model selection │ └── config.yaml # Model capabilities └── utils/ # Utilities ├── files.py # File handling ├── memory.py # Conversation memory ├── models.py # Model restrictions └── security.py # Security validation

🧪 Advanced Features

Model Restrictions

Control which models can be used to manage costs:

# Allow only specific models export ALLOWED_MODELS="gpt-4o-mini,claude-3-haiku" # Exclude expensive models export DISALLOWED_MODELS="o1-preview,claude-3-opus"

Conversation Memory

SAGE maintains conversation context across tool calls:

# Automatically continues conversations # Previous context and files are preserved # Smart deduplication prevents re-reading

Custom Providers

Add custom AI providers by implementing the base provider interface:

class CustomProvider(BaseProvider): async def generate(self, messages, **kwargs): # Your implementation pass

🤝 Contributing

We welcome contributions! Please see CONTRIBUTING.md for guidelines.

Development Setup

# Install dev dependencies pip install -r requirements-dev.txt # Run tests pytest # Format code black . ruff check .

📄 License

MIT License - see LICENSE for details.

🙏 Acknowledgments

🔗 Links

SAGE-MCP - Your intelligent AI assistant that adapts to how you work 🧙✨

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