A token is not a concept. A token is a word or word fragment that occured often in free text and was assigned a number. Common words, prefixes, and suffixes are the vast majority of tokens, and the rest are uncommon pairs of letters.
The algorithm to generate tokens is essentially compression, there is no semantic meaning embedded in them.
As someone who spent years as a ‘big company engineer’, the reason I don’t write code until the bosses have clear requirements is because I don’t want to do it twice.
That and it isn’t just me, there’s 5 other teams who have to coordinate and they have other things on their roadmap that are more important than a project without a spec.