Toast the Pecans: Place the raw, unsalted pecan halves in a small, dry skillet over medium-low heat. Toast for 3–4 minutes, shaking the pan occasionally, until they become fragrant and darken slightly. Remove immediately to a cool surface to prevent further cooking.
Prepare the Fruit: Rinse the blueberries and raspberries under cool water. Gently pat them completely dry with a paper towel.
Season the Yogurt: In a medium mixing bowl, combine the Greek yogurt, ground cardamom, and vanilla extract. Whisk briskly until the spice is evenly distributed and the yogurt is smooth and creamy.
Assemble the Base: Divide the seasoned yogurt mixture evenly among the three wide, shallow bowls.
Add Texture: Coarsely chop the cooled pecans. Sprinkle the chopped pecans and the granola over the surface of the yogurt in each bowl.
Arrange Fruit: Artfully arrange the fresh blueberries and raspberries over the layer of granola and nuts.
Finish: Drizzle approximately ½ teaspoon of the agave nectar over the top of each bowl just before serving.