Notes. Parameters in the first block are inputs to the P(k) emulator, and all use flat priors denoted by their lower and upper limits [lower, upper]. We sample over five cosmological parameters: S₈, Ω_c and Ω_b (the density parameters for cold dark matter and baryonic matter, respectively); h (the dimensionless Hubble parameter); and n_s (the spectral index of the primordial power spectrum). Additional inputs to the power spectrum emulator include four fixed cosmological parameters: Ω_K (the energy density parameter associated with spatial curvature); w₀ and w_a (describing the equation of state of dark energy and its redshift evolution); and ∑m_ν (the total mass of all families of neutrinos). We also sample over the baryon feedback parameter from HMCODE2020 log₁₀(T_AGN/K). Parameters in the second block are implemented within additional COSMOSIS modules, and are used in the intrinsic alignment model (A_IA,  b_IA, and log₁₀(⟨M⟩⁽ⁱ⁾)) or our redshift distribution bias mitigation (δz⁽ⁱ⁾). These sets of parameters are specified with multivariate Gaussian priors denoted by 𝒩(μ_x, C_x), where μ is the vector of prior means and C is the related covariance matrix. Values of μ_IA, x are given in Appendix B. Values of μ_z, diag(C_δz) are given in Table 1, and the correlation matrix of C_δz is shown in Fig. 3.