diff --git a/extensions/matrix/src/matrix/outbound-media-runtime.ts b/extensions/matrix/src/matrix/outbound-media-runtime.ts
new file mode 100644
index 00000000000..ca1b7d66e63
--- /dev/null
+++ b/extensions/matrix/src/matrix/outbound-media-runtime.ts
@@ -0,0 +1 @@
+export { loadOutboundMediaFromUrl } from "openclaw/plugin-sdk/matrix";
diff --git a/extensions/matrix/src/matrix/send.test.ts b/extensions/matrix/src/matrix/send.test.ts
index d2ca7de8926..93007a1d840 100644
--- a/extensions/matrix/src/matrix/send.test.ts
+++ b/extensions/matrix/src/matrix/send.test.ts
@@ -24,13 +24,9 @@ const resolveTextChunkLimitMock = vi.fn<
 const resolveMarkdownTableModeMock = vi.fn(() => "code");
 const convertMarkdownTablesMock = vi.fn((text: string) => text);
 
-vi.mock("../runtime-api.js", async (importOriginal) => {
-  const actual = await importOriginal<typeof import("../runtime-api.js")>();
-  return {
-    ...actual,
-    loadOutboundMediaFromUrl: loadOutboundMediaFromUrlMock,
-  };
-});
+vi.mock("./outbound-media-runtime.js", () => ({
+  loadOutboundMediaFromUrl: loadOutboundMediaFromUrlMock,
+}));
 
 const runtimeStub = {
   config: {
diff --git a/extensions/matrix/src/matrix/send.ts b/extensions/matrix/src/matrix/send.ts
index bf14631ef96..96aff27abd0 100644
--- a/extensions/matrix/src/matrix/send.ts
+++ b/extensions/matrix/src/matrix/send.ts
@@ -1,10 +1,8 @@
-import {
-  loadOutboundMediaFromUrl,
-  type MarkdownTableMode,
-  type PollInput,
-} from "../runtime-api.js";
+import type { MarkdownTableMode } from "openclaw/plugin-sdk/markdown-table-runtime";
+import type { PollInput } from "../runtime-api.js";
 import { getMatrixRuntime } from "../runtime.js";
 import type { CoreConfig } from "../types.js";
+import { loadOutboundMediaFromUrl } from "./outbound-media-runtime.js";
 import { buildPollStartContent, M_POLL_START } from "./poll-types.js";
 import { buildMatrixReactionContent } from "./reaction-common.js";
 import type { MatrixClient } from "./sdk.js";