This format, or similar formats, seem to be the standard now, I was just reading the "Lessons from Building Manus"[1] post and they discuss the Hermes Format[2] which seems similar in terms of being pseudo-xml.
My initial thought was how hacky the whole thing feels, but then the fact that it works and gives rise to complex behaviour (like coercing specific tool selection in the Manus post) is quite simple and elegant.
Also as an aside, it is good that it appears that each standard tag is a single token in the OpenAI repo.
My initial thought was how hacky the whole thing feels, but then the fact that it works and gives rise to complex behaviour (like coercing specific tool selection in the Manus post) is quite simple and elegant.
Also as an aside, it is good that it appears that each standard tag is a single token in the OpenAI repo.
[1] https://manus.im/blog/Context-Engineering-for-AI-Agents-Less... [2] https://github.com/NousResearch/Hermes-Function-Calling