diff --git a/extensions/lobster/index.ts b/extensions/lobster/index.ts
index c70ccc49da0..e6e586af9c5 100644
--- a/extensions/lobster/index.ts
+++ b/extensions/lobster/index.ts
@@ -1,9 +1,5 @@
-import {
-  definePluginEntry,
-  type AnyAgentTool,
-  type OpenClawPluginApi,
-  type OpenClawPluginToolFactory,
-} from "openclaw/plugin-sdk/lobster";
+import { definePluginEntry } from "openclaw/plugin-sdk/core";
+import type { AnyAgentTool, OpenClawPluginApi, OpenClawPluginToolFactory } from "./runtime-api.js";
 import { createLobsterTool } from "./src/lobster-tool.js";
 
 export default definePluginEntry({
diff --git a/extensions/lobster/runtime-api.ts b/extensions/lobster/runtime-api.ts
new file mode 100644
index 00000000000..7ab2351b77d
--- /dev/null
+++ b/extensions/lobster/runtime-api.ts
@@ -0,0 +1 @@
+export * from "openclaw/plugin-sdk/lobster";
diff --git a/extensions/lobster/src/lobster-tool.ts b/extensions/lobster/src/lobster-tool.ts
index 96276bb9d69..fa3994bb45d 100644
--- a/extensions/lobster/src/lobster-tool.ts
+++ b/extensions/lobster/src/lobster-tool.ts
@@ -1,7 +1,7 @@
 import { spawn } from "node:child_process";
 import path from "node:path";
 import { Type } from "@sinclair/typebox";
-import type { OpenClawPluginApi } from "openclaw/plugin-sdk/lobster";
+import type { OpenClawPluginApi } from "../runtime-api.js";
 import { resolveWindowsLobsterSpawn } from "./windows-spawn.js";
 
 type LobsterEnvelope =
diff --git a/extensions/lobster/src/windows-spawn.ts b/extensions/lobster/src/windows-spawn.ts
index 7c35deab2a7..22541f866a8 100644
--- a/extensions/lobster/src/windows-spawn.ts
+++ b/extensions/lobster/src/windows-spawn.ts
@@ -2,7 +2,7 @@ import {
   applyWindowsSpawnProgramPolicy,
   materializeWindowsSpawnProgram,
   resolveWindowsSpawnProgramCandidate,
-} from "openclaw/plugin-sdk/lobster";
+} from "../runtime-api.js";
 
 type SpawnTarget = {
   command: string;