diff --git a/docs/module-graph.md b/docs/module-graph.md
index bcdf0a87e7..cee3f96342 100644
--- a/docs/module-graph.md
+++ b/docs/module-graph.md
@@ -374,6 +374,7 @@ flowchart TD
   pkg_web --> pkg_invariants
   pkg_web --> pkg_llm
   pkg_client_ui_conversation --> pkg_attachment
+  pkg_client_ui_conversation --> pkg_brand
   pkg_client_ui_conversation --> pkg_client_locale
   pkg_client_ui_conversation --> pkg_client_runtime
   pkg_client_ui_conversation --> pkg_client_ui_primitives
@@ -1043,7 +1044,7 @@ flowchart TD
 | [`session`](../packages/core/session) | `core` | [`brand`](../packages/util/brand), [`invariants`](../packages/support/invariants), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope) |
 | [`system-prompt`](../packages/core/system-prompt) | `core` | [`invariants`](../packages/support/invariants), [`llm`](../packages/llm/llm), [`scope`](../packages/core/scope) |
 | [`web`](../packages/web/web) | `web` | [`invariants`](../packages/support/invariants), [`llm`](../packages/llm/llm) |
-| [`client-ui-conversation`](../packages/client/ui-conversation) | `client` | [`attachment`](../packages/attachment/attachment), [`client-locale`](../packages/client/locale), [`client-runtime`](../packages/client/runtime), [`client-ui-primitives`](../packages/client/ui-primitives), [`client-ui-slash`](../packages/client/ui-slash), [`client-ui-slots`](../packages/client/ui-slots), [`invariants`](../packages/support/invariants) |
+| [`client-ui-conversation`](../packages/client/ui-conversation) | `client` | [`attachment`](../packages/attachment/attachment), [`brand`](../packages/util/brand), [`client-locale`](../packages/client/locale), [`client-runtime`](../packages/client/runtime), [`client-ui-primitives`](../packages/client/ui-primitives), [`client-ui-slash`](../packages/client/ui-slash), [`client-ui-slots`](../packages/client/ui-slots), [`invariants`](../packages/support/invariants) |
 | [`client-ui-layout`](../packages/client/ui-layout) | `client` | [`client-runtime`](../packages/client/runtime), [`client-ui-slots`](../packages/client/ui-slots), [`client-ui-theme`](../packages/client/ui-theme), [`invariants`](../packages/support/invariants) |
 | [`client-ui-skill`](../packages/client/ui-skill) | `client` | [`client-connection`](../packages/client/connection), [`client-runtime`](../packages/client/runtime), [`client-ui-slash`](../packages/client/ui-slash), [`client-ui-slots`](../packages/client/ui-slots), [`invariants`](../packages/support/invariants) |
 | [`client-ui-subagent`](../packages/client/ui-subagent) | `client` | [`client-runtime`](../packages/client/runtime), [`client-ui-slash`](../packages/client/ui-slash), [`client-ui-slots`](../packages/client/ui-slots), [`invariants`](../packages/support/invariants) |
diff --git a/packages/attachment/attachment-local/tests/index.spec.ts b/packages/attachment/attachment-local/tests/index.spec.ts
index 7ea71d166b..8aad68d2ff 100644
--- a/packages/attachment/attachment-local/tests/index.spec.ts
+++ b/packages/attachment/attachment-local/tests/index.spec.ts
@@ -48,6 +48,9 @@ describe('local attachment service', () => {
         'iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNk+A8AAQUBAScY42YAAAAASUVORK5CYII=',
         'base64',
       ))
+      const limited = new LocalAttachmentStore(new Context(), { dshHome, maxImageBytes: 1 })
+      await expect(limited.validateImage({ data: valid, mediaType: 'image/png' }))
+        .rejects.toMatchObject({ code: 'IMAGE_TOO_LARGE' })
       await expect(service.validateImage({ data: valid, mediaType: 'image/png' })).resolves.toBeUndefined()
       expect(existsSync(service.root)).toBe(false)
     } finally {