I've had every single LLM I tried (Opus, Sonnet, GPT-5-(codex) and Grok light) all tell me that Go embeds[0] support relative paths UPWARDS in the tree.
They all have a very specific misunderstanding. Go embeds _do_ support relative paths like:
//go:embed files/hello.txt
But they DO NOT support any paths with ".." in it
//go:embed ../files/hello.txt
is not correct.
All confidently claimed that .. is correct and will work and tried to make it work multipled different ways until I pointed each to the documentation.
[0] https://pkg.go.dev/embed