The paper fixes a single table of retrieval-stage constants used throughout the main experiments. Base traversal depths are $d_{\uparrow}^{(0)} = 6$ (ancestor) and $d_{\downarrow}^{(0)} = 2$ (descendant). Level thresholds are $\tau_{\text{low}} = 2$ and $\tau_{\text{high}} = 5$. Contrast thresholds are $\gamma_{\text{low}} = 0.05$ and $\gamma_{\text{high}} = 0.15$. Penalties are $\delta = 0.030$ (global) and $\delta_{\text{child}} = 0.025$ (child). Role-aware quotas for child / bridge / global selections are $1 / 4 / 1$. These constants are held fixed across the main strict-parity experiments so that compared systems differ only in graph policy. The level and contrast thresholds parameterize the adaptive depth gate, while the role-aware quotas parameterize bidirectional prerequisite diffusion.