Revert "Fix Tool Parsing to Allow Object Return Value" (#534)

Author: Shubhrakanti

plugins/openai/src/llm.ts

@@ -636,36 +636,27 @@ const buildMessage = async (msg: llm.ChatMessage, cacheKey: any) => {
       break;
   }
 
-  if (msg.role === llm.ChatRole.TOOL) {
-    try {
-      const toolCallOutput = JSON.stringify(msg.content);
-      oaiMsg.content = toolCallOutput;
-    } catch (e) {
-      throw Error(`Tool call output is not JSON serializable: ${e}`);
-    }
-  } else {
-    if (typeof msg.content === 'string') {
-      oaiMsg.content = msg.content;
-    } else if (Array.isArray(msg.content)) {
-      oaiMsg.content = (await Promise.all(
-        msg.content.map(async (c) => {
-          if (typeof c === 'string') {
-            return { type: 'text', text: c };
-          } else if (
-            // typescript type guard for determining ChatAudio vs ChatImage
-            ((c: llm.ChatAudio | llm.ChatImage): c is llm.ChatImage => {
-              return (c as llm.ChatImage).image !== undefined;
-            })(c)
-          ) {
-            return await buildImageContent(c, cacheKey);
-          } else {
-            throw new Error('ChatAudio is not supported');
-          }
-        }),
-      )) as OpenAI.ChatCompletionContentPart[];
-    } else if (msg.content === undefined) {
-      oaiMsg.content = '';
-    }
+  if (typeof msg.content === 'string') {
+    oaiMsg.content = msg.content;
+  } else if (Array.isArray(msg.content)) {
+    oaiMsg.content = (await Promise.all(
+      msg.content.map(async (c) => {
+        if (typeof c === 'string') {
+          return { type: 'text', text: c };
+        } else if (
+          // typescript type guard for determining ChatAudio vs ChatImage
+          ((c: llm.ChatAudio | llm.ChatImage): c is llm.ChatImage => {
+            return (c as llm.ChatImage).image !== undefined;
+          })(c)
+        ) {
+          return await buildImageContent(c, cacheKey);
+        } else {
+          throw new Error('ChatAudio is not supported');
+        }
+      }),
+    )) as OpenAI.ChatCompletionContentPart[];
+  } else if (msg.content === undefined) {
+    oaiMsg.content = '';
   }
 
   // make sure to provide when function has been called inside the context