Is there any American style guide that insists hyphens be avoided even when a closed compound would cause ambiguity? I follow Chicago, but I imagine other style guides also already emphasise clarity.
Wouldn't "code sign" be two words in English? And "code signing" rather than "code sign"?
Mostly yes, and I prefer it that way, but it does get smashed into a single word sometimes. "co-design" I've mostly only seen hyphenated, though I don't see it often enough or in broad enough contexts to really claim anything about the frequency in a general sense.
Maybe it's caused by `codesign` tools? Like `codesign --extreme` which probably requires two signers to sign one thing?