MCP WorkBoard CrunchTools

A secure MCP (Model Context Protocol) server for WorkBoard OKR and strategy execution platform.

Overview

This MCP server is designed to be:

• Secure by default - Comprehensive threat modeling, input validation, and token protection
• No third-party services - Runs locally via stdio, your API token never leaves your machine
• Cross-platform - Works on Linux, macOS, and Windows
• Automatically updated - GitHub Actions monitor for CVEs and update dependencies
• Containerized - Available at quay.io/crunchtools/mcp-workboard built on Hummingbird Python base image

Naming Convention

Component	Name
GitHub repo	crunchtools/mcp-workboard
Container	quay.io/crunchtools/mcp-workboard
Python package (PyPI)	mcp-workboard-crunchtools
CLI command	mcp-workboard-crunchtools
Module import	mcp_workboard_crunchtools

Why Hummingbird?

The container image is built on the Hummingbird Python base image from Project Hummingbird, which provides:

• Minimal CVE exposure - Built with a minimal package set, dramatically reducing attack surface
• Regular updates - Security patches applied promptly
• Optimized for Python - Pre-configured with uv package manager
• Production-ready - Proper signal handling and non-root user defaults

Features

User Management (4 tools)

• workboard_get_user - Get a user by ID or the current authenticated user
• workboard_list_users - List all users (Data-Admin role required)
• workboard_create_user - Create a new user (Data-Admin role required)
• workboard_update_user - Update an existing user

Goal Management (2 tools)

• workboard_get_goals - Get all goals for a user
• workboard_get_goal_details - Get details for a specific goal

Installation

With uvx (Recommended)

uvx mcp-workboard-crunchtools

With pip

pip install mcp-workboard-crunchtools

With Container

podman run -e WORKBOARD_API_TOKEN=your_token \
    quay.io/crunchtools/mcp-workboard

Configuration

Getting a WorkBoard API Token

1. Log in to your WorkBoard instance
2. Navigate to Admin Settings > API Configuration
3. Generate a JWT API token
4. Copy the token immediately - store it securely

Add to Claude Code

claude mcp add mcp-workboard \
    --env WORKBOARD_API_TOKEN=your_token_here \
    -- uvx mcp-workboard-crunchtools

Or for the container version:

claude mcp add mcp-workboard \
    --env WORKBOARD_API_TOKEN=your_token_here \
    -- podman run -i --rm -e WORKBOARD_API_TOKEN quay.io/crunchtools/mcp-workboard

Usage Examples

Get Current User

User: Who am I in WorkBoard?
Assistant: [calls workboard_get_user with no args]

List All Users

User: List all WorkBoard users
Assistant: [calls workboard_list_users]

Get User Goals

User: Show me goals for user 12345
Assistant: [calls workboard_get_goals with user_id=12345]

Get Goal Details

User: Get details on goal 67890 for user 12345
Assistant: [calls workboard_get_goal_details with user_id=12345, goal_id=67890]

Security

This server was designed with security as a primary concern. See SECURITY.md for:

• Threat model and attack vectors
• Defense in depth architecture
• Token handling best practices
• Input validation rules

Key Security Features

1. Token Protection

   • Stored as SecretStr (never accidentally logged)
   • Environment variable only (never in files or args)
   • Sanitized from all error messages

2. Input Validation

   • Pydantic models for all inputs
   • Positive integer validation for IDs
   • Email validation for user creation

3. API Hardening

   • Hardcoded API base URL (prevents SSRF)
   • TLS certificate validation
   • Request timeouts
   • Response size limits

4. Automated CVE Scanning

   • GitHub Actions scan dependencies weekly
   • Automatic issues for security updates
   • Dependabot alerts enabled

Development

Setup

git clone https://github.com/crunchtools/mcp-workboard.git
cd mcp-workboard
uv sync

Run Tests

uv run pytest

Lint and Type Check

uv run ruff check src tests
uv run mypy src

Build Container

podman build -t mcp-workboard .

License

AGPL-3.0-or-later

Contributing

Contributions welcome! Please read SECURITY.md before submitting security-related changes.

Links

• WorkBoard API Documentation
• FastMCP Documentation
• MCP Specification
• crunchtools.com