I've worked at large companies and I've worked at small ones (disclaimer: including Kagi, long ago). When I was at Google I wrote design docs for basically ever

I've worked at large companies and I've worked at small ones (disclaimer: including Kagi, long ago). When I was at Google I wrote design docs for basically everything. The company I'm at has fewer than ten people. I rarely write design docs. This isn't because the workplace is any less healthy, but because there are fundamentally fewer people I need to communicate my changes to, and they have more context of what I'm doing. Process is healthy at large companies, because they move slowly and communicating your changes often becomes far more important than the actual code that needs to be written. Kagi is a small company. It does not make sense to cargo-cult practices from a company a hundred times larger.