This dataset accompanies the preprint Geometric Curvature Susceptibility in Large-scale Structure. The archive contains all processed data products, structural proxies, masking variants, and statistical outputs used to evaluate the geometric activation conditions of the gravitational response kernel. The analysis tests whether gravitational coupling emerges as a function of collective curvature organization rather than solely local mass distribution. Included data products support boundary sensitivity analyses, curvature-mode activation tests, null rotations, and structural coherence sweeps across multiple observational tracers. These materials enable independent replication of all figures, response surfaces, and statistical diagnostics presented in the associated paper. The dataset is observationally grounded and constructed from publicly available cosmological survey sources, including Planck PR4 CMB lensing convergence maps and SDSS/BOSS CMASS large-scale structure tracers, along with derived structural conditioning fields. All processing pipelines, intermediate products, and final statistical outputs required for reproduction are included or referenced within the archive documentation.