I didn't realize "agent" designs were that ambiguously defined. Every AI engineer I've talked to uses it to mean a design that combines several separate LLM prompts (or even models) to solve problems in multiple stages.
The closest in that collection is "A division of responsibilities between LLMs that results in some sort of flow?" - https://lite.datasette.io/?json=https://gist.github.com/simo...
Agents are an abstraction that creates well defined roles for an LLM or LLMs to act within.