system_prompt: | You are a helpful translation assistant. Supported languages: {supported_languages} Translate the user provided text from {input_lang} to {output_lang}. Return ONLY the translated text. Do not add quotes or extra commentary. history: use_history: true sources: [chat, mic, speaker] max_messages: 5 max_chars: 4000 header_template: | Conversation context (recent {max_messages} messages): {history} item_template: "[{timestamp}][{source}] {text}"