diff --git a/resources/boost/skills/material-3-design/SKILL.md b/resources/boost/skills/material-3-design/SKILL.md
index a9d9ae77..e583ee72 100644
--- a/resources/boost/skills/material-3-design/SKILL.md
+++ b/resources/boost/skills/material-3-design/SKILL.md
@@ -9,7 +9,7 @@ description: Material 3 Expressive's design system as Livewire Material implemen
 
 Use this skill when deciding how a screen, panel or control should look or behave — which colour, container, corner, type style, motion, breakpoint or spacing — in an application that requires `nonameweb/livewire-material`, and when reviewing a view against Material 3. The props and slots of each component are in the `livewire-material-development` skill; this one is the design language they implement. The rules an agent must always follow are in the `material-3` guideline; the tables here are what those rules compress.
 
-Every table pairs the M3 name with the library's utility or attribute. The tokens are CSS variables (`--md-sys-color-*`, `--md-sys-typescale-*`, `--md-sys-shape-*`, `--md-sys-elevation-*`, `--md-sys-motion-*`, `--md-sys-state-*`, `--md-ref-typeface-*`) and the utilities read them, so a template names a utility and never a variable or a value.
+Every table pairs the M3 name with the library's utility or attribute. The tokens are CSS variables (`--md-sys-color-*`, `--md-sys-typescale-*`, `--md-sys-shape-*`, `--md-sys-elevation-*`, `--md-sys-motion-*`, `--md-sys-state-*`, `--md-sys-measurement-*`, `--md-ref-typeface-*`) and the utilities read them, so a template names a utility and never a variable or a value.
 
 ## Colour
 
diff --git a/resources/css/tokens/spacing.css b/resources/css/tokens/spacing.css
new file mode 100644
index 00000000..b4ba5b60
--- /dev/null
+++ b/resources/css/tokens/spacing.css
@@ -0,0 +1,32 @@
+/*
+ * Spacing, as M3's measurement scale.
+ *
+ * An 8dp grid where space100 is the base unit, with the nested steps M3 uses below and just above
+ * it: 0.25×, 0.5×, 0.75× and 1.25× (docs/reference/m3/styles-supplement.md § Spacing, "Spacing
+ * scale"). Names are Compose's `md.sys.measurement.space*`. A dp is a CSS pixel, so the values are
+ * px and a larger text size leaves them alone — M3 keeps spacing when text scales to 200%.
+ *
+ * Padding and gaps on the parent, margins only between layout regions. A value between two steps
+ * is a new token in the application's own stylesheet, named by the same multiplier convention
+ * (space225 = 18px), never a literal.
+ */
+
+@layer material.reset, material.tokens, material.base, material.layout, material.components, material.text, material.visibility;
+
+@layer material.tokens {
+    :root {
+        --md-sys-measurement-space25: 2px;
+        --md-sys-measurement-space50: 4px;
+        --md-sys-measurement-space75: 6px;
+        --md-sys-measurement-space100: 8px;
+        --md-sys-measurement-space125: 10px;
+        --md-sys-measurement-space200: 16px;
+        --md-sys-measurement-space300: 24px;
+        --md-sys-measurement-space400: 32px;
+        --md-sys-measurement-space500: 40px;
+        --md-sys-measurement-space600: 48px;
+        --md-sys-measurement-space700: 56px;
+        --md-sys-measurement-space800: 64px;
+        --md-sys-measurement-space900: 72px;
+    }
+}