......That's assuming someone has the funding to hire an art director. What do to do with independent writers (and other artsist) who lack the economic resources to hire cultural consultants and lack the time to read through dozens (and often conflicting) historical texts?
Let's look at an example. Let's say, for instance, I'm an aspiring novelist and I use the term "master bedroom". Will my novel be rejected by a publisher? I don't know. The word master might be a reference to slavery, but it could also be an reference to master-apprentice system. The term originated in the 1920s Macy's catalog, well after the end of slavery, but during a time when Jim Crow laws existed in the US. In the 1920s, however, apprenticeship were also common. How I am supposed to know if this phrase is appropriate or not? I might use it thinking it is completely reasonable, but then receive pushback later on.
The key is that I'm not sure and I don't have any resources. I'm working a day job, writing novels at night, but struggling to get my foot in the door. I don't have the extra cash to hire consultants, and the seemingly simple act of finding an agent is a monuments task. A single word can be the difference between an accepted and rejected work.
What advice would you give this person in order to ensure he or she does not violate the unwritten standards of inclusivity?
okay as a PoC myself, I feel like you're overthinking this. like that's my honest opinion. "does not violate the unwritten standards of inclusivity" what, you think we work together as a shadowy cabal deciding what is and isn't offensive or something just to catch people off guard for being racist? come on....
I don't want to belittle any actual anxiety you have, but to put things in perspective look at the story I told upthread. I always have anxiety over whether or not I want to reveal my ethnic background to people. like can you imagine what would happen if after my coworker told that joke I told him I was Korean? I never did, no one in the studio knew because I didn't feel it was worth revealing this.
now first of all an art director isn't someone you hire, they're someone who works for a company or group who needs to get art for whatever reason. their main task is to make sure the art meets the company's needs and that includes giving out guidelines to the artists they're commissioning. if you're gonna deal with one it's because they hired you.
secondly, you have a resource. it's called Google. and unless you put something egregiously or obviously racist in your book they're not gonna reject it (well, out of racism at least). now I google "master bedroom" and yeah there's a ton of conversation going on. unfortunately people are starting to realize some of the language we use happens to be racist in origin, but this happens all the time, and anything we currently consider egregious will almost always appear as such. given this situation I highly doubt they're gonna drop you on the spot because of that, and I can guarantee you even after these conversations we're having right now there'll still be stuff that gets published with casual racism for quite some time. if you're genuinely worried you're already doing better than some people.
if you want help there are people you can hire such as sensitivity readers who can read your work and point out anything that might be off, I imagine they'd be happy to help so long as you hire them in good faith.