Pat the pickle chips very dry with paper towels, as removing excess moisture is key to getting them crispy.
Set up three shallow dishes: flour in the first, beaten eggs in the second, and a mixture of panko breadcrumbs, cornmeal, garlic powder, paprika, cayenne pepper, and salt in the third.
Working in batches, dredge each pickle chip in flour, dip in egg, then press into the breadcrumb mixture, coating both sides well.
Preheat the air fryer to 400°F (200°C). Arrange the breaded pickles in a single layer in the basket and spray generously with cooking spray.
Air fry for 6 to 8 minutes, flipping halfway through and spraying the other side, until deeply golden and crunchy.
Serve hot with ranch dressing for dipping.