tate is required to have Mixer know what to do with incoming attributes and dispatch to the appropriate infrastructure backends.</p><p>Refer <a href="./mixer-config.html">here</a> for detailed information on Mixer’s configuration model.</p><h2 id="request-phases">Request phases</h2><p>When a request comes in to Mixer, it goes through a number of distinct handling phases:</p><ul><li><p><strong>Supplementary Attribute Production</strong>. Mixer initially runs a globally configured set of adapters that are r