diff --git a/apps/web/src/no-external-fonts.test.ts b/apps/web/src/no-external-fonts.test.ts
index b1797a03..1a4d163c 100644
--- a/apps/web/src/no-external-fonts.test.ts
+++ b/apps/web/src/no-external-fonts.test.ts
@@ -3,6 +3,21 @@ import { readFileSync } from "node:fs";
 import document from "../index.html?raw";
 
 const hearthTokens = readFileSync(new URL("./hearth-tokens.css", import.meta.url), "utf8");
+const styles = readFileSync(new URL("./styles.css", import.meta.url), "utf8");
+
+function cssBlock(selector: string) {
+  const start = styles.indexOf(`${selector} {`);
+  if (start < 0) throw new Error(`Missing CSS rule for ${selector}`);
+  const end = styles.indexOf("}", start);
+  if (end < 0) throw new Error(`Unclosed CSS rule for ${selector}`);
+  return styles.slice(start, end + 1);
+}
+
+function customProperty(block: string, name: string) {
+  const match = block.match(new RegExp(`\\s${name}:\\s*([^;]+);`));
+  if (!match) throw new Error(`Missing ${name}`);
+  return match[1].trim();
+}
 
 describe("production typography boundary", () => {
   it("does not require an external font CDN", () => {
@@ -15,4 +30,35 @@ describe("production typography boundary", () => {
     expect(hearthTokens).toContain("--hearth-azure");
     expect(hearthTokens).not.toMatch(/url\(|https?:\/\/|@import/i);
   });
+
+  it("keeps neutral metadata capsules on the public Hearth scale", () => {
+    const root = cssBlock(":root");
+    const tag = cssBlock(".tag");
+    const tagWrap = cssBlock(".tag-wrap");
+    const reference = cssBlock(".ref-chip");
+
+    for (const rule of [tag, reference]) {
+      expect(rule).toContain("gap: var(--s1)");
+      expect(rule).toContain("font-size: var(--type-xs)");
+    }
+    expect(tag).toContain("padding: 2px var(--s2)");
+    expect(tag).toContain("border-radius: var(--r-sm)");
+    expect(tagWrap).toContain("gap: var(--s1)");
+    expect(reference).toContain("padding: var(--s1) var(--s2)");
+    expect(reference).toContain("border-radius: 999px");
+    expect(customProperty(root, "--s1")).toBe("4px");
+    expect(customProperty(root, "--s2")).toBe("8px");
+    expect(customProperty(root, "--r-sm")).toBe("7px");
+    expect(customProperty(root, "--type-xs")).toBe("11px");
+  });
+
+  it("keeps state, topology selection, and AI suggestion capsules distinct", () => {
+    const state = cssBlock(".state-pill");
+    const filter = cssBlock(".filter-chip");
+    const suggestion = cssBlock(".suggest-chip");
+
+    expect(state).toContain("color: var(--c, var(--s-unknown))");
+    expect(filter).toContain("text-transform: capitalize");
+    expect(suggestion).toContain("border-radius: 999px");
+  });
 });
diff --git a/apps/web/src/styles.css b/apps/web/src/styles.css
index fe9e0816..0af1dd8b 100644
--- a/apps/web/src/styles.css
+++ b/apps/web/src/styles.css
@@ -44,6 +44,10 @@
   --s5: 24px;
   --s6: 32px;
 
+  /* Hearth's compact metadata type role. Geometry continues through the
+     established --s* and --r-* aliases until #222's wider export lands. */
+  --type-xs: 11px;
+
   --shadow: var(--hearth-shadow);
   --t: 140ms cubic-bezier(0.22, 0.61, 0.36, 1);
 
@@ -592,10 +596,12 @@ kbd {
 .tag {
   display: inline-flex;
   align-items: center;
-  gap: 5px;
-  padding: 2px 8px;
-  border-radius: 6px;
-  font-size: 11.5px;
+  /* The 2px block padding is a DockerMap density exception; the shared
+     type, horizontal rhythm, and corner geometry come from Hearth. */
+  gap: var(--s1);
+  padding: 2px var(--s2);
+  border-radius: var(--r-sm);
+  font-size: var(--type-xs);
   color: var(--muted);
   background: var(--surface-2);
   border: 1px solid var(--border);
@@ -622,7 +628,7 @@ kbd {
 .tag-wrap {
   display: flex;
   flex-wrap: wrap;
-  gap: 6px;
+  gap: var(--s1);
 }
 
 .kv {
@@ -1953,12 +1959,12 @@ kbd {
 .ref-chip {
   display: inline-flex;
   align-items: center;
-  gap: 6px;
-  padding: 4px 10px;
+  gap: var(--s1);
+  padding: var(--s1) var(--s2);
   border-radius: 999px;
   background: var(--surface-2);
   border: 1px solid var(--border);
-  font-size: 12px;
+  font-size: var(--type-xs);
   font-weight: 600;
 }