I think it has a compact table of contents of all the skills it can call preloaded. It's not RAG, it navigates based on references between files, like a coding agent.
This is correct. It just puts a list of skills into context as part of the base prompt. The list must be compact because the whole point of skills is to reduce context bloat by keeping all the details out of context until they are needed. So the list will just be something like: 1) skill name, 2) short (like one sentence) description of what the skill is for, 3) where to find the skill (file path, basically) when it wants to read it in.
