Devin's core workflow is: Plan (human reviews proposal) → Test (Devin tests itself) → PR (human reviews natively in GitHub). Cursor's BugBot shows inline diffs with Fix/Reject actions. SaaS Factory has an approval gates system (approval_gates table, ApprovalGate component) but the gate only shows contextData as metadata — it doesn't render the actual code diff, changed files, or a before/after preview. A human approving a feature change cannot see what code is being merged without opening GitHub separately. Adding an embedded diff viewer and file-change summary directly in the approval gate UI would close this UX gap and increase confidence in autonomous merges.