Every one is the same agent, shaped by what you give it: your documents and website as its knowledge, the tools it may use, and a workflow you draw. Open one to see it run, and what it is made of.
If the answer is in your documents, the task is in your API, or the next step depends on a few questions, a chatbot can do it. Add your knowledge, connect your tools, and draw the steps.
Each is knowledge, tools and a workflow, like the seven above.