diff --git a/TODO.md b/TODO.md
index a2240ce..9d04080 100644
--- a/TODO.md
+++ b/TODO.md
@@ -53,8 +53,11 @@ baseline sheet.
       (Body/Feet/Head/Legs, 10.5k–13.0k verts), 62 joints (8 spine + 8 arm + 2 PT + 30 finger +
       6 leg), 24 shared clips (retarget scope: Idle + Walk), and the material→slot map by mesh
       region (Skin→skin; head hair→hair; body→cloth; legs→pants; feet→accessory).
-- [ ] Choose the initial outfit scope: build the three full GLBs first; only use the 21-part
+- [x] Choose the initial outfit scope: build the three full GLBs first; only use the 21-part
       modular builder if the three looks cannot cover the 12 roles.
+      Decided: the three full GLBs are the canonical-base + silhouette-gate scope. They cover
+      ~3 of 12 roles (casual, hood, vest); jacket/coat/dress/responder/guard need the 21-part
+      modular builder or new clothing at §4. Recorded in `docs/npc-model-sourcing.md`.
 - [ ] Build a canonical `quaternius_base.glb`: one welded, triangulated, grounded 1.81 m
       humanoid with front on Blender −Y, no animation, and a documented bone/part inventory.
 
diff --git a/docs/npc-model-sourcing.md b/docs/npc-model-sourcing.md
index 8e288ea..0246d66 100644
--- a/docs/npc-model-sourcing.md
+++ b/docs/npc-model-sourcing.md
@@ -61,6 +61,14 @@ The Ducz mirror is a browser builder over the same packs; it adds 21
 outfits and a shared skeleton. The three full GLBs are the initial scope; the
 21-part builder is a fallback for role coverage, not the default.
 
+**Initial outfit scope (2026-11-05):** the three full GLBs (`Casual`,
+`Casual_Hoodie`, `Worker`) are the canonical-base and silhouette-gate scope.
+They cover only ~3 of the 12 roles (casual, hood, vest); the jacket, coat,
+dress, responder (firefighter) and guard looks are not in the three GLBs, so
+§4 roster coverage must pull those from the 21-part modular builder or author
+new clothing. Do not start the modular builder until the canonical base passes
+§3.
+
 The first prototype measured 12,518 imported vertices, 3,199 after welding and
 2,423 vertices / 4,654 triangles after a 0.75 decimate. Idle and Walk read well.
 The source is a T-pose with a 62-joint realistic rig, roughly 0.96 m hip,