diff --git a/README.md b/README.md
index 50311fc..8b464c9 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,11 @@ A shape-aware toolkit for drawing tensor formulas: a LaTeX/TikZ macro package, a
 pipeline that fails on silent corruption, worked examples, and an agent skill that ties
 them together.
 
+This repository is a **child** of SuperPaper, the family parent that
+routes paper notes to the right figure toolkit. Clone SuperPaper with
+`--recurse-submodules` for the whole family; use this directory alone
+when you only need shape-aware tensor figures.
+
 It exists because figures of this kind fail in a specific way — they compile, they look
 clean, and they tell the reader something false. A face captioned `Kᵀ` that was never
 transposed; shards that do not tile their parent; an index tensor drawn with a lightness