https://www.anthropic.com/engineering/advanced-tool-use#:~:text=and%20error%2Dprone.-,Our%20solution,are%20all%20explicit%20in%20code%20rather%20than%20implicit

https://www.anthropic.com/engineering/advanced-tool-use#:~:text=and%20error%2Dprone.-,Our%20solution,are%20all%20explicit%20in%20code%20rather%20than%20implicit%20in%20Claude%27s%20reasoning.,-Example%3A%20Budget%20compliance https://www.anthropic.com/engineering/advanced-tool-use#:~:t... Anthropic themselves support this style of tool calling with code first party now too.