diff --git a/sdk/src/TestAgent.ts b/sdk/src/TestAgent.ts
index c8bb46321..7d092e86a 100644
--- a/sdk/src/TestAgent.ts
+++ b/sdk/src/TestAgent.ts
@@ -89,6 +89,7 @@ function convertToToolSet(tools: Tool[]): ToolSet {
     const converted = dynamicTool({
       description: tool.description,
       inputSchema: jsonSchema(ensureJsonSchemaObject(tool.inputSchema)),
+      ...(tool.outputSchema ? { outputSchema: jsonSchema(tool.outputSchema as any) } : {}),
       execute: async (args, options) => {
         options?.abortSignal?.throwIfAborted?.();
         const result = await tool.execute(args as Record<string, unknown>);
diff --git a/sdk/src/mcp-client-manager/tool-converters.ts b/sdk/src/mcp-client-manager/tool-converters.ts
index 2a4dfff6f..cde10d422 100644
--- a/sdk/src/mcp-client-manager/tool-converters.ts
+++ b/sdk/src/mcp-client-manager/tool-converters.ts
@@ -215,7 +215,7 @@ export async function convertMCPToolsToVercelTools(
   const tools: ToolSet = {};
 
   for (const toolDescription of listToolsResult.tools) {
-    const { name, description, inputSchema } = toolDescription;
+    const { name, description, inputSchema, outputSchema } = toolDescription;
     const toolMeta = toolDescription._meta as
       | Record<string, unknown>
       | undefined;
@@ -257,6 +257,7 @@ export async function convertMCPToolsToVercelTools(
         description,
         inputSchema: jsonSchema(normalizedInputSchema),
         execute,
+        ...(outputSchema ? { outputSchema: jsonSchema(outputSchema as any) } : {}),
         ...(toModelOutput ? { toModelOutput } : {}),
         ...(needsApproval != null ? { needsApproval } : {}),
       });