diff --git a/auto-agents-framework/src/agents/tools/fetchMentionsTool.ts b/auto-agents-framework/src/agents/tools/fetchMentionsTool.ts
index 40a426d1..48f6e107 100644
--- a/auto-agents-framework/src/agents/tools/fetchMentionsTool.ts
+++ b/auto-agents-framework/src/agents/tools/fetchMentionsTool.ts
@@ -4,6 +4,7 @@ import { createLogger } from '../../utils/logger.js';
 import { TwitterApi } from '../../services/twitter/types.js';
 import { ToolNode } from '@langchain/langgraph/prebuilt';
 import { AIMessage } from '@langchain/core/messages';
+import { cleanTweetForCircularReferences } from './utils/twitter.js';
 
 const logger = createLogger('fetch-mentions-tool');
 
@@ -15,12 +16,11 @@ export const createFetchMentionsTool = (twitterApi: TwitterApi) =>
     func: async ({ maxMentions, sinceId }: { maxMentions: number; sinceId?: string }) => {
       try {
         const recentMentions = await twitterApi.getMyUnrepliedToMentions(maxMentions, sinceId);
-
         return {
-          tweets: recentMentions,
+          tweets: recentMentions.map(cleanTweetForCircularReferences),
         };
       } catch (error) {
-        logger.error('Error in fetchTimelineTool:', error);
+        logger.error('Error in fetchMentionsTool:', error);
         return {
           tweets: [],
         };
diff --git a/auto-agents-framework/src/agents/tools/utils/twitter.ts b/auto-agents-framework/src/agents/tools/utils/twitter.ts
index 69fe16cc..a05f85c9 100644
--- a/auto-agents-framework/src/agents/tools/utils/twitter.ts
+++ b/auto-agents-framework/src/agents/tools/utils/twitter.ts
@@ -39,3 +39,18 @@ export const convertMessageContentToTweets = (messageContent: MessageContent): T
     return [];
   }
 };
+
+export const cleanTweetForCircularReferences = (tweet: Tweet): Tweet => ({
+  ...tweet,
+  thread: tweet.thread
+    ?.filter(t => t.id !== tweet.id)
+    .map(t => ({
+      id: t.id,
+      text: t.text,
+      username: t.username,
+      timeParsed: t.timeParsed,
+    })) as Tweet[],
+  inReplyToStatus: undefined,
+  quotedStatus: undefined,
+  retweetedStatus: undefined,
+});