Status: OUT
LSP is the keystone of the entire OO design framework: it connects SOLID's orthogonal axes as the linchpin between the substitutability pipeline and the cohesion pair, validates the wrapping taxonomy's correctness across the structural-behavioral boundary, and simultaneously enables and constrains the pattern ecosystem — making it the single principle whose absence would collapse the most structure.
Three independent structural roles converge on LSP as the maximally load-bearing principle
Depends on (SL): lsp-linchpin-connects-solid-axes, lsp-validates-wrapping-taxonomy, lsp-dual-role-enabling-and-constraining