Developed the dagster-cloud-mcp package within the dagster-io/dagster repository, delivering a Model Context Protocol (MCP) server to support GraphQL operations for Dagster Cloud. Focused on backend development using Python, the work included implementing token-authentication middleware to securely capture bearer tokens from HTTP requests and building a dedicated GraphQL client for seamless API interactions. Created a suite of MCP tools to manage runs, retrieve deployment information, and query assets, while adding predefined GraphQL queries for common workflows. Comprehensive unit tests were written to validate token handling and client initialization, contributing to improved security and reliability of the internal API infrastructure.