Adrian Duminuc contributed to the agntcy/dir and agntcy/docs repositories by building authentication enhancements and improving developer documentation. He implemented API key authentication via JSON files, prioritizing file-based credentials over CLI arguments and environment variables, and refined error handling and output formatting for API key creation. Adrian also clarified CLI documentation, ensuring pull and push commands accurately reflected their operation on records, not agents or models. His work included migrating and improving Markdown documentation, updating usage instructions, and enhancing onboarding materials for the dirctl tool. He primarily used Go, JSON, and Markdown, demonstrating depth in API authentication, CLI development, and technical writing.