fixed openai system calls in history breaking anthropic calls

src/antrhopic.ts

@@ -52,7 +52,10 @@ export class Anthropic extends LLMProvider {
 	ask(message: string, options: LLMRequest = {}): AbortablePromise<string | any> {
 		const controller = new AbortController();
 		return Object.assign(new Promise<any>(async (res) => {
-			let history = this.fromStandard([...options.history || [], {role: 'user', content: message, timestamp: Date.now()}]);
+			let history = this.fromStandard([
+				...(options.history || []).filter(h => h.role !== 'system'),
+				{role: 'user', content: message, timestamp: Date.now()}
+			]);
 			const tools = options.tools || this.ai.options.llm?.tools || [];
 			const requestParams: any = {
 				model: options.model || this.model,
@@ -83,7 +86,7 @@ export class Anthropic extends LLMProvider {
 				};
 			}
 
-			let resp: any, isFirstMessage = true, terminal = false;
+			let resp: any, hasStreamedText = false, terminal = false;
 			do {
 				requestParams.messages = history.map(({timestamp, ...m}) => m);
 				resp = await this.client.messages.create(requestParams).catch(err => {
@@ -93,8 +96,7 @@ export class Anthropic extends LLMProvider {
 
 				// Streaming mode
 				if(options.stream) {
-					if(!isFirstMessage) options.stream({text: '\n\n'});
-					else isFirstMessage = false;
+					if(hasStreamedText) options.stream({text: '\n\n'});
 					resp.content = [];
 					for await (const chunk of resp) {
 						if(controller.signal.aborted) break;
@@ -108,7 +110,7 @@ export class Anthropic extends LLMProvider {
 							if(chunk.delta.type === 'text_delta') {
 								const text = chunk.delta.text;
 								resp.content.at(-1).text += text;
-								options.stream({text});
+								if(text) { hasStreamedText = true; options.stream({text}); }
 							} else if(chunk.delta.type === 'input_json_delta') {
 								resp.content.at(-1).input += chunk.delta.partial_json;
 							}