Worked on the AztecProtocol/aztec-packages repository to deliver comprehensive documentation for the Barretenberg CLI tool, focusing on developer-facing guidance to streamline onboarding and clarify usage. The work involved creating an initial CLI reference in Markdown, detailing global options, subcommands such as check, gates, prove, verify, and write_vk, and providing usage examples alongside backward-compatibility notes for legacy API commands. Emphasizing technical writing and documentation skills, the contribution aimed to reduce support overhead and ensure consistency with previous API behaviors. The documentation enhanced the developer experience by making command-line interactions more accessible and maintaining alignment with established workflows.