[wwoessi]

I don't think it's much difference, but I've read that Markdown codeblocks (or YAML, or XML) is better for code than JSON, for example: https://aider.chat/2024/08/14/code-in-json.html

I think it makes sense.

YAML is shorter and easier to read, Markdown codeblocks have no added syntax between the lines compared to normal code.

But JSON vs JSONL I can't come up with any big advantages for the LLM, it's mostly the same.