Stack Use the local CLI for squash-safe stacked PR repair. It is designed for repos where PRs are squash-merged and merged branches are deleted, so Git ancestry alone cannot preserve stack intent. Keep ordinary editing and commits on plain . Use only for stack intent, stack inspection, sync, merge, and undo workflows. Mental Model Stack intent is persisted in as stack links: - branch - parent branch - merge-base anchor - PR number Mutating sync and merge workflows write so can restore the previous branch tips, PR bases, and stack metadata. Common Commands - : show the relevant tracked stack g…