When an ungrounded probe encounters sub-argmax candidate tokens with probabilities above a set threshold, Treewalker replaces the chosen token and dispatches new branch prompts to complete those alternate phrases into full association pathways.

flowchart TD
    A["Initial Token: 'Custom'"] --> B["Primary: ' cycling' (65%)"]
    A --> C["Alt: ' running' (25%)"]
    A --> D["Alt: ' soccer' (8%)"]
    B --> E["Path 1: 'Custom cycling jerseys'"]
    C -. Branch Prompt .-> F["Path 2: 'Custom running singlets'"]
    D -. Below Threshold .-> G["Pruned (Threshold >= 10%)"]