fix(docs): correct typos — 'tools'is undefined (#1359)

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Author: ooboqoo

src/oss/langchain/structured-output.mdx

@@ -227,7 +227,7 @@ LangChain automatically uses `ProviderStrategy` when you pass a schema type dire
 
     const agent = createAgent({
         model: "gpt-5",
-        tools: tools,
+        tools: [],
         responseFormat: providerStrategy(ContactInfo)
     });
 
@@ -255,7 +255,7 @@ LangChain automatically uses `ProviderStrategy` when you pass a schema type dire
 
     const agent = createAgent({
         model: "gpt-5",
-        tools: tools,
+        tools: [],
         responseFormat: providerStrategy(contactInfoSchema)
     });
 
@@ -582,7 +582,7 @@ function toolStrategy<StructuredResponseT>(
 
     const agent = createAgent({
         model: "gpt-5",
-        tools: tools,
+        tools: [],
         responseFormat: toolStrategy(ProductReview)
     })
 
@@ -623,7 +623,7 @@ function toolStrategy<StructuredResponseT>(
 
     const agent = createAgent({
         model: "gpt-5",
-        tools: tools,
+        tools: [],
         responseFormat: toolStrategy(productReviewSchema)
     });
 
@@ -653,7 +653,7 @@ function toolStrategy<StructuredResponseT>(
 
     const agent = createAgent({
         model: "gpt-5",
-        tools: tools,
+        tools: [],
         responseFormat: toolStrategy([ProductReview, CustomerComplaint])
     });