diff --git a/libs/middleware/package.json b/libs/middleware/package.json
index b48e1819..04495b7c 100644
--- a/libs/middleware/package.json
+++ b/libs/middleware/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@threadplane/middleware",
-  "version": "0.0.1",
+  "version": "0.0.2",
   "description": "Backend middleware for the Threadplane client-tools capability. The /langgraph entrypoint targets LangGraph.js.",
   "keywords": ["langgraph", "agent", "client-tools", "middleware", "threadplane"],
   "license": "MIT",
diff --git a/libs/middleware/src/langgraph/channel.ts b/libs/middleware/src/langgraph/channel.ts
index 37168fc5..6b14dd71 100644
--- a/libs/middleware/src/langgraph/channel.ts
+++ b/libs/middleware/src/langgraph/channel.ts
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: MIT
 import { Annotation } from '@langchain/langgraph';
-import type { ClientToolSpec } from './types';
+import type { ClientToolSpec } from './types.js';
 
 /**
  * State channels for the client-tools catalog. Spread into Annotation.Root so a graph
diff --git a/libs/middleware/src/langgraph/index.ts b/libs/middleware/src/langgraph/index.ts
index f4a5e38e..42ec31b0 100644
--- a/libs/middleware/src/langgraph/index.ts
+++ b/libs/middleware/src/langgraph/index.ts
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-export type { ClientToolSpec, ClientToolsState, OpenAIFunctionTool, BaseMessage } from './types';
+export type { ClientToolSpec, ClientToolsState, OpenAIFunctionTool, BaseMessage } from './types.js';
 export {
   clientToolSpecs,
   clientToolNames,
@@ -9,6 +9,6 @@ export {
   bindClientTools,
   routeAfterAgent,
   type BindableModel,
-} from './middleware';
-export { clientToolsChannel } from './channel';
-export { clientToolsRouter } from './router';
+} from './middleware.js';
+export { clientToolsChannel } from './channel.js';
+export { clientToolsRouter } from './router.js';
diff --git a/libs/middleware/src/langgraph/middleware.ts b/libs/middleware/src/langgraph/middleware.ts
index eaa68f04..fd105e15 100644
--- a/libs/middleware/src/langgraph/middleware.ts
+++ b/libs/middleware/src/langgraph/middleware.ts
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-import type { ClientToolSpec, ClientToolsState, OpenAIFunctionTool } from './types';
+import type { ClientToolSpec, ClientToolsState, OpenAIFunctionTool } from './types.js';
 
 /** Read the catalog from state.tools, falling back to state.client_tools; drop nameless. */
 function catalog(state: ClientToolsState): ClientToolSpec[] {
@@ -20,7 +20,7 @@ export function clientToolNames(state: ClientToolsState): Set<string> {
   return new Set(catalog(state).map((t) => t.name));
 }
 
-import type { BaseMessage } from './types';
+import type { BaseMessage } from './types.js';
 
 interface ToolCallLike {
   name?: string;
diff --git a/libs/middleware/src/langgraph/router.ts b/libs/middleware/src/langgraph/router.ts
index 6d6dab7a..a43e636c 100644
--- a/libs/middleware/src/langgraph/router.ts
+++ b/libs/middleware/src/langgraph/router.ts
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: MIT
-import { routeAfterAgent } from './middleware';
-import type { ClientToolsState } from './types';
+import { routeAfterAgent } from './middleware.js';
+import type { ClientToolsState } from './types.js';
 
 /**
  * A prebuilt conditional-edge callback. serverToolNames is bound once at construction;