I would check this out: Connecting a Flow to Asana to pull project statuses .
In my opinion, my litmus test when creating a chat agent vs a Flow is the complexity of the task and the variability. If the input or guidance often requires you to ask follow up questions, or ask the end user to provide more information, the a chat agent is great at doing that. Otherwise Flows is an excellent choice. You can even use the chat agent within Flows to not only control your instructions, but prevent users from taking action without providing the required information using reasoning groups. e.g. Has user satisfied x, y, z. If not do not allow them to create the task. As for the chat agent, you can embed workflows into the task. e.g. When user asks “how do I use this chat agent”, you respond with usage section in your instructions. Or when user says “I want to create a task”, You do 1. <> 2. <> 3. <> and ask for for information if the following rules are not satisfied.
As for the form, this is a human approval to verify your work and is in place for a specific reason. If you schedule the Flow, there is an automated approval button for actions.