diff --git a/examples/hf0-demo.ts b/examples/hf0-demo.ts
index 7395d3af..73f3807f 100644
--- a/examples/hf0-demo.ts
+++ b/examples/hf0-demo.ts
@@ -22,7 +22,7 @@ async function main() {
         messages: [
           {
             role: 'system',
-            content: `You are a MckInsey analyst who is an expert at writing executive summaries.`
+            content: `You are a McKinsey analyst who is an expert at writing executive summaries.`
           },
           {
             role: 'user',
@@ -57,7 +57,7 @@ async function main() {
       messages: [
         {
           role: 'system',
-          content: `You are a MckInsey analyst who is an expert at writing executive summaries.`
+          content: `You are a McKinsey analyst who is an expert at writing executive summaries.`
         },
         {
           role: 'user',
diff --git a/examples/search-and-crawl.ts b/examples/search-and-crawl.ts
index 6c51f3dd..e33e6070 100644
--- a/examples/search-and-crawl.ts
+++ b/examples/search-and-crawl.ts
@@ -15,7 +15,7 @@ async function main() {
       messages: [
         {
           role: 'system',
-          content: `You are a MckInsey analyst who is an expert at writing executive summaries. Always respond using markdown unless instructed to respond using JSON.`
+          content: `You are a McKinsey analyst who is an expert at writing executive summaries. Always respond using markdown.`
         },
         {
           role: 'user',
diff --git a/examples/summarize-news.ts b/examples/summarize-news.ts
index 2308fcbe..8ba6a895 100644
--- a/examples/summarize-news.ts
+++ b/examples/summarize-news.ts
@@ -8,6 +8,8 @@ async function main() {
   const openai = new OpenAIClient({ apiKey: process.env.OPENAI_API_KEY! })
   const agentic = new Agentic({ openai })
 
+  const topic = process.argv[2] || 'HF0 accelerator'
+
   const res = await agentic
     .gpt4(`Summarize the latest news on {{topic}} using markdown.`)
     .tools([new SerpAPITool()])
@@ -16,13 +18,8 @@ async function main() {
         topic: z.string()
       })
     )
-    .output(
-      z.object({
-        summary: z.string()
-      })
-    )
     .call({
-      topic: 'HF0 accelerator'
+      topic
     })
 
   console.log('\n\n\n' + res)
diff --git a/src/tools/diffbot.ts b/src/tools/diffbot.ts
index 941df61d..91622bed 100644
--- a/src/tools/diffbot.ts
+++ b/src/tools/diffbot.ts
@@ -109,23 +109,26 @@ export class DiffbotTool extends BaseTask<DiffbotInput, DiffbotOutput> {
     const output = this.outputSchema.parse({
       type: res.type,
       title: res.title,
-      objects: res.objects.map((obj) => ({
-        ...pick(
-          obj,
-          'type',
-          'siteName',
-          'author',
-          // 'authorUrl',
-          'pageUrl',
-          'date',
-          // 'estimatedDate',
-          // 'humanLanguage',
-          'items',
-          'text'
-        )
-        // tags: obj.tags?.map((tag) => tag.label)
-        // images: obj.images?.map((image) => omit(image, 'diffbotUri'))
-      }))
+      objects: res.objects?.map(
+        (obj) =>
+          ({
+            ...pick(
+              obj,
+              'type',
+              'siteName',
+              'author',
+              // 'authorUrl',
+              'pageUrl',
+              'date',
+              // 'estimatedDate',
+              // 'humanLanguage',
+              'items',
+              'text'
+            )
+            // tags: obj.tags?.map((tag) => tag.label)
+            // images: obj.images?.map((image) => omit(image, 'diffbotUri'))
+          } || [])
+      )
     })
 
     this._logger.info(output, `Diffbot response for url "${ctx.input!.url}"`)
diff --git a/src/tools/serpapi.ts b/src/tools/serpapi.ts
index c15cb811..08fa600b 100644
--- a/src/tools/serpapi.ts
+++ b/src/tools/serpapi.ts
@@ -123,7 +123,6 @@ export class SerpAPITool extends BaseTask<SerpAPIInput, SerpAPIOutput> {
     })
 
     this._logger.info(output, `SerpAPI response for query "${query}"`)
-
     return output
   }
 }