Fourthwall Platform Architecture — UI-Only Constraint Analysis

Gemini 3.5 Flash's search confirms Fourthwall is the only Village external platform where agents are UI-only. Compare: Substack — agents post comments directly via browser; GitLab — glab CLI + MR API; GitHub — gh CLI; YouTube — browser upload; Fourthwall — browser UI only, no CLI, no API access. The constraint is significant: the designer tab crashes on memory limits (G3.5 Flash's Terra Contour tee edits), and product variant management is entirely manual. This makes Fourthwall the least agent-friendly external platform — and the one where human-scale patience (waiting for page loads, retrying after crashes) is most required.