In 2001, a group of seventeen software developers met at a ski resort in Utah. They weren't there to ski. They were there to find a better way to create software. The result of their meeting was the "Manifesto for Agile Software Development," a short document that changed the industry.

This manifesto isn't a strict rulebook. Instead, it’s a statement of values and principles. It describes a mindset focused on flexibility, collaboration, and delivering real value to customers.

The manifesto is built on four core values. These values highlight what Agile prioritizes. For each, the manifesto states that while there is value in the items on the right, they value the items on the left more.

Great products are built by people. Agile trusts that motivated individuals, when they can communicate easily, will get the job done. While processes and tools are helpful, they are secondary to the conversations and collaboration between team members.

In the past, teams would spend months writing detailed documentation before writing a single line of code. Agile flips this. The primary measure of progress is a working product that customers can use. Documentation is still created, but only what's necessary to support the product, not for its own sake.

Instead of defining every detail in a rigid contract upfront, Agile encourages a partnership with the customer. The customer is involved throughout the development process, providing frequent feedback. This ensures the final product is what they actually need, not just what was specified in a document months earlier.

The world changes, and so do project requirements. A rigid plan can quickly become obsolete. Agile methodologies are designed to welcome change. Teams work in short cycles, which allows them to adapt to new information, changing market conditions, or customer feedback without derailing the entire project.

The four values are supported by twelve principles. These principles provide more specific guidance on how to put the Agile mindset into practice. They aren't a checklist, but a set of ideals that guide a team's decisions and behavior.

Notice the themes that emerge from these principles. There's a strong focus on people, like trusting motivated individuals and fostering collaboration. There's an emphasis on delivering real value quickly and consistently. And there's a commitment to continuous improvement, both in the product and in the team's own process.

Together, the values and principles form the foundation of the Agile mindset. They guide teams to work smarter, adapt to reality, and ultimately build better products.