Fixing message combination on anthropic

package.json

@@ -1,6 +1,6 @@
 {
 	"name": "@ztimson/ai-utils",
-	"version": "0.1.19",
+	"version": "0.1.20",
 	"description": "AI Utility library",
 	"author": "Zak Timson",
 	"license": "MIT",

src/antrhopic.ts

@@ -73,11 +73,11 @@ export class Anthropic extends LLMProvider {
 			};
 
 			let resp: any;
-			const loopMessages: any[] = [];
+			const assistantMessages: string[] = [];
 			do {
 				resp = await this.client.messages.create(requestParams);
 				if(options.stream) {
-					if(loopMessages.length) options.stream({text: '\n\n'});
+					if(assistantMessages.length) options.stream({text: '\n\n'});
 					resp.content = [];
 					for await (const chunk of resp) {
 						if(controller.signal.aborted) break;
@@ -104,7 +104,8 @@ export class Anthropic extends LLMProvider {
 					}
 				}
 
-				loopMessages.push({role: 'assistant', content: resp.content, timestamp: Date.now()});
+				const textContent = resp.content.filter((c: any) => c.type == 'text').map((c: any) => c.text).join('\n\n');
+				if(textContent) assistantMessages.push(textContent);
 				const toolCalls = resp.content.filter((c: any) => c.type === 'tool_use');
 				if(toolCalls.length && !controller.signal.aborted) {
 					history.push({role: 'assistant', content: resp.content});
@@ -118,18 +119,12 @@ export class Anthropic extends LLMProvider {
 							return {type: 'tool_result', tool_use_id: toolCall.id, is_error: true, content: err?.message || err?.toString() || 'Unknown'};
 						}
 					}));
-					const userMsg = {role: 'user', content: results};
-					history.push(userMsg);
-					loopMessages.push({...userMsg, timestamp: Date.now()});
+					history.push({role: 'user', content: results});
 					requestParams.messages = history;
 				}
 			} while (!controller.signal.aborted && resp.content.some((c: any) => c.type === 'tool_use'));
-
-			const combinedContent = loopMessages.filter(m => m.role === 'assistant')
-				.map(m => m.content.filter((c: any) => c.type == 'text').map((c: any) => c.text).join('\n\n'))
-				.filter(c => c).join('\n\n');
 			if(options.stream) options.stream({done: true});
-			res(this.toStandard([...history, {role: 'assistant', content: combinedContent, timestamp: Date.now()}]));
+			res(this.toStandard([...history, {role: 'assistant', content: assistantMessages.join('\n\n'), timestamp: Date.now()}]));
 		});
 
 		return Object.assign(response, {abort: () => controller.abort()});