It refers to the original principles and practices from the Agile Manifesto 2001. It's a mindset and principles emphasizing adaptability, collaboration, and customer value in software development.

The heart of ClassicAgility lies in its customer-focused nature. It prioritizes delivering value to customers by continuously seeking feedback, iterating on solutions, and adapting to changing requirements. While valuable, it's important to note that Classic Agility may have limitations when addressing the scale and complexity of today's challenges.

For more detailed information about Classic Agility, check Enterprise Agility Fundamentals, Introduction, page 8.