# Mcp Summarization Functions

> Provides summarised output from various actions that could otherwise eat up tokens and cause crashes for AI agents

- **Type:** MCP server
- **Install:** `agentstack add mcp-braffolk-mcp-summarization-functions`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [Braffolk](https://agentstack.voostack.com/s/braffolk)
- **Installs:** 0
- **Category:** [Integrations](https://agentstack.voostack.com/c/integrations)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [Braffolk](https://github.com/Braffolk)
- **Source:** https://github.com/Braffolk/mcp-summarization-functions

## Install

```sh
agentstack add mcp-braffolk-mcp-summarization-functions
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# Summarization Functions

### Intelligent text summarization for the Model Context Protocol

[Features](#features) •
[AI Agent Integration](#ai-agent-integration) •
[Installation](#installation) •
[Usage](#usage)

[](https://smithery.ai/server/mcp-summarization-functions)
[](https://www.npmjs.com/package/mcp-summarization-functions)

---

## Overview

A powerful MCP server that provides intelligent summarization capabilities through a clean, extensible architecture. Built with modern TypeScript and designed for seamless integration with AI workflows.

## Installation

### Installing via Smithery

To install Summarization Functions for Claude Desktop automatically via [Smithery](https://smithery.ai/server/mcp-summarization-functions):

```bash
npx -y @smithery/cli install mcp-summarization-functions --client claude
```

```bash
npm i mcp-summarization-functions
```

## AI Agent Integration

This MCP server was primarily developed to enhance the performance and reliability of AI agents like Roo Cline and Cline. It addresses a critical challenge in AI agent operations: context window management.

### Context Window Optimization

AI agents frequently encounter situations where their context window gets rapidly filled with large outputs from:
- Command execution results
- File content readings
- Directory listings
- API responses
- Error messages and stack traces

This server helps maintain efficient context usage by:
1. Providing concise, relevant summaries instead of full content
2. Storing full content for reference when needed
3. Offering focused analysis based on specific needs (security, API surface, etc.)
4. Supporting multiple output formats for optimal context utilization

### Benefits for AI Agents

- **Reduced Failure Rates**: By preventing context window overflow
- **Improved Response Quality**: Through focused, relevant summaries
- **Enhanced Efficiency**: By maintaining important context while reducing noise
- **Better Resource Management**: Through intelligent content caching and retrieval
- **Flexible Integration**: Supporting multiple AI providers and configuration options

### Recommended AI Agent Prompt

When integrating with AI agents, include the following in your agent's instructions:

```
# CONTEXT MANAGEMENT

You have access to summarization functions through the MCP server. These functions are NOT optional - you MUST use them for ALL potentially large outputs to prevent context overflow:

MANDATORY SUMMARIZATION:
- You MUST ALWAYS use summarization functions for:
    - ANY first time file reading operations (unless you are CERTAIN its small and you are going to edit it)
    - ALL command execution outputs
    - EVERY directory analysis
    - ANY API responses or error logs
    - ANY output that could be large

NEVER attempt to process raw output directly - ALWAYS use the appropriate summarization function:
• For commands: summarize_command
• For files: summarize_files
• For directories: summarize_directory
• For other text: summarize_text

ALWAYS utilize available features:
• Specify hints for focused analysis
• Choose appropriate output formats
• Use content IDs to access full details only when absolutely necessary

There is NO NEED to process perfect or complete output. Summarized content is ALWAYS preferred over raw data. When in doubt, use summarization.
```

Summarization in action on the Ollama repository (Gemini 2.0 Flash summarization, Claude 3.5 agent)

## Features

- **Command Output Summarization**  
  Execute commands and get concise summaries of their output

- **File Content Analysis**  
  Summarize single or multiple files while maintaining technical accuracy

- **Directory Structure Understanding**  
  Get clear overviews of complex directory structures

- **Flexible Model Support**
  Use models from different providers

- **AI Agent Context Optimization**
  Prevent context window overflow and improve AI agent performance through intelligent summarization

## Configuration

The server supports multiple AI providers through environment variables:

### Required Environment Variables

- `PROVIDER`: AI provider to use. Supported values:
		- `ANTHROPIC` - Claude models from Anthropic
		- `OPENAI` - GPT models from OpenAI
		- `OPENAI-COMPATIBLE` - OpenAI-compatible APIs (e.g. Azure)
		- `GOOGLE` - Gemini models from Google
- `API_KEY`: API key for the selected provider

### Optional Environment Variables

- `MODEL_ID`: Specific model to use (defaults to provider's standard model)
- `PROVIDER_BASE_URL`: Custom API endpoint for OpenAI-compatible providers
- `MAX_TOKENS`: Maximum tokens for model responses (default: 1024)
- `SUMMARIZATION_CHAR_THRESHOLD`: Character count threshold for when to summarize (default: 512)
- `SUMMARIZATION_CACHE_MAX_AGE`: Cache duration in milliseconds (default: 3600000 - 1 hour)
- `MCP_WORKING_DIR` - fallback directory for trying to find files with relative paths from

### Example Configurations

```bash
# Anthropic Configuration
PROVIDER=ANTHROPIC
API_KEY=your-anthropic-key
MODEL_ID=claude-3-5-sonnet-20241022

# OpenAI Configuration
PROVIDER=OPENAI
API_KEY=your-openai-key
MODEL_ID=gpt-4-turbo-preview

# Azure OpenAI Configuration
PROVIDER=OPENAI-COMPATIBLE
API_KEY=your-azure-key
PROVIDER_BASE_URL=https://your-resource.openai.azure.com
MODEL_ID=your-deployment-name

# Google Configuration
PROVIDER=GOOGLE
API_KEY=your-google-key
MODEL_ID=gemini-2.0-flash-exp
```

## Usage

Add the server to your MCP configuration file:

```json
{
		"mcpServers": {
				"MUST_USE_summarization": {
						"command": "node",
						"args": ["path/to/summarization-functions/build/index.js"],
						"env": {
								"PROVIDER": "ANTHROPIC",
								"API_KEY": "your-api-key",
								"MODEL_ID": "claude-3-5-sonnet-20241022",
                "MCP_WORKING_DIR": "default_working_directory"
						}
				}
		}
}
```

### Available Functions

The server provides the following summarization tools:

#### `summarize_command`
Execute and summarize command output.
```typescript
{
  // Required
  command: string,    // Command to execute
  cwd: string,       // Working directory for command execution
  
  // Optional
  hint?: string,      // Focus area: "security_analysis" | "api_surface" | "error_handling" | "dependencies" | "type_definitions"
  output_format?: string  // Format: "text" | "json" | "markdown" | "outline" (default: "text")
}
```

#### `summarize_files`
Summarize file contents.
```typescript
{
  // Required
  paths: string[],    // Array of file paths to summarize (relative to cwd)
  cwd: string,       // Working directory for resolving file paths
  
  // Optional
  hint?: string,      // Focus area: "security_analysis" | "api_surface" | "error_handling" | "dependencies" | "type_definitions"
  output_format?: string  // Format: "text" | "json" | "markdown" | "outline" (default: "text")
}
```

#### `summarize_directory`
Get directory structure overview.
```typescript
{
  // Required
  path: string,       // Directory path to summarize (relative to cwd)
  cwd: string,       // Working directory for resolving directory path
  
  // Optional
  recursive?: boolean,  // Whether to include subdirectories. Safe for deep directories
  hint?: string,       // Focus area: "security_analysis" | "api_surface" | "error_handling" | "dependencies" | "type_definitions"
  output_format?: string   // Format: "text" | "json" | "markdown" | "outline" (default: "text")
}
```

#### `summarize_text`
Summarize arbitrary text content.
```typescript
{
  // Required
  content: string,    // Text content to summarize
  type: string,       // Type of content (e.g., "log output", "API response")
  
  // Optional
  hint?: string,      // Focus area: "security_analysis" | "api_surface" | "error_handling" | "dependencies" | "type_definitions"
  output_format?: string  // Format: "text" | "json" | "markdown" | "outline" (default: "text")
}
```

#### `get_full_content`
Retrieve the full content for a given summary ID.
```typescript
{
  // Required
  id: string         // ID of the stored content
}
```

## Running evals

The evals package loads an mcp client that then runs the index.ts file, so there is no need to rebuild between tests. You can load environment variables by prefixing the npx command. Full documentation can be found [here](https://www.mcpevals.io/docs).

```bash
OPENAI_API_KEY=your-key  npx mcp-eval src/evals/evals.ts src/server/mcp-server.ts
```
## License

MIT

## Source & license

This open-source MCP server is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [Braffolk](https://github.com/Braffolk)
- **Source:** [Braffolk/mcp-summarization-functions](https://github.com/Braffolk/mcp-summarization-functions)
- **License:** MIT

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/mcp-braffolk-mcp-summarization-functions
- Seller: https://agentstack.voostack.com/s/braffolk
- Browse the marketplace: https://agentstack.voostack.com/browse

---
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