Worked on the dagger/dagger repository to enhance Rust SDK configuration handling by introducing a new Config builder and refining timeout semantics. Leveraging Rust and backend development expertise, implemented robust management of timeout and execute_timeout fields, establishing a default connect timeout of 10 seconds while removing the default execute timeout. Developed a deprecation path for Config::new in favor of the builder pattern, improving configuration flexibility. Expanded test coverage with targeted unit and integration tests to validate timeout behaviors and ensure Config::default aligns with builder defaults. Addressed GraphQL error parsing and restored default timeout behavior, contributing to improved reliability and stability.