KV injection: every draft layer sees the full prefix verified prefix The fastest way to target model one forward pass context features h₁ h₂ h₃ h₄ features → K, V per position anchor MASK MASK MASK MASK block in draft layer 1 draft layer 2 draft layer 3 draft layer 4 draft layer 5 KV KV KV KV KV get to school quickly block out every layer sees the full prefix · injected once per block EAGLE-3 conditions on the last token only, and injects at the first layer only. signal fades in deeper layers