Agile architecture spikes are exploratory software development techniques that originate from Extreme Programming and are used to assess the effort required to solve a specific problem or explore solutions for existing software issues. These spikes facilitate early testing by identifying unknowns and reducing complexity, thus shifting the testing phase to the left and improving software quality. Although the code generated from spikes is often discarded, the practice provides valuable insights and documentation on potential architectural solutions, helping teams manage risks and refine requirements. Spikes are particularly useful for both developers and QA teams to experiment with different tools and approaches, enabling quick feedback cycles and collaboration to discover effective solutions. This method aligns with Agile's emphasis on experimentation over detailed planning, allowing teams to adapt and refine their processes for better software delivery.