diff --git a/apps/app/.eslintrc.cjs b/apps/app/.eslintrc.cjs
index 5d74d343..ee51fb29 100644
--- a/apps/app/.eslintrc.cjs
+++ b/apps/app/.eslintrc.cjs
@@ -306,7 +306,13 @@ module.exports = {
       // same `type` so both src/components/forms/** and src/components/Icon.vue
       // are captured before the generic `components` catch-all.
       { type: 'components-foundation', pattern: 'src/components/forms/**' },
-      { type: 'components-foundation', pattern: 'src/components/Icon.vue' },
+      // mode:'file' is REQUIRED for a single-file pattern. Without it
+      // eslint-plugin-boundaries matches in the default 'folder' mode,
+      // so 'src/components/Icon.vue' never matches and Icon.vue falls
+      // through to the generic `components` catch-all below — breaking
+      // the sanctioned components-v2 → Icon bridge (RFC AD-G5). The
+      // forms/** entry above is a folder glob so it is unaffected.
+      { type: 'components-foundation', pattern: 'src/components/Icon.vue', mode: 'file' },
       { type: 'components-v2', pattern: 'src/components-v2/**' },
       { type: 'components', pattern: 'src/components/**' },
       { type: 'layouts', pattern: 'src/layouts/**' },
diff --git a/apps/app/tests/unit/boundaries-v2.spec.ts b/apps/app/tests/unit/boundaries-v2.spec.ts
index e50ec52a..8b1b7be7 100644
--- a/apps/app/tests/unit/boundaries-v2.spec.ts
+++ b/apps/app/tests/unit/boundaries-v2.spec.ts
@@ -38,6 +38,18 @@ describe('boundaries — v2 zones', () => {
     expect(errs).toHaveLength(0)
   })
 
+  it('allows components-v2 → components-foundation (Icon.vue bridge, single-file mode:file)', async () => {
+    // Regression lock: the single-file element needs mode:'file' or
+    // Icon.vue falls through to the generic `components` catch-all and
+    // every v2 shell component's Icon import breaks (RFC AD-G5 bridge).
+    const errs = await boundaryErrors(
+      'src/components-v2/layout/SidebarNav.vue',
+      '<script setup lang="ts">import Icon from \'@/components/Icon.vue\'</script><template><Icon name="x" /></template>',
+    )
+
+    expect(errs).toHaveLength(0)
+  })
+
   it('allows components-v2 → components-foundation (FormField bridge)', async () => {
     const errs = await boundaryErrors(
       'src/components-v2/forms/Demo.vue',