[Feature Request] Add persistent agent sessions with pre-configured knowledge that survives context clearing

Feature Request
It would be nice to have an agent property or cli argument that we can load a pre-configured agent/session without the need to load that knowledge multiple times. I have a node graph where I have agents and the same agent is used in different stages of the graph, and is an agent/new session all the time.

it would be nice to be able to create sessions that have knowledge pre-baked and then reuse that. Like having one session where you can do a /clear but the knowledge of the role/skills remain

Environment Info

• Platform: darwin
• Terminal: WarpTerminal
• Version: 2.1.114
• Feedback ID: a530003a-ac09-4e43-ba26-4d556d887812