The /tree feature is incredible for context management. It's really surprising the other harnesses haven't slurped it up yet. It lets you rewind back to any previous message and fork the conversation from there, removing your 'side quest' (e.g. where you dig into something the agent said) from the context. Some other harnesses have a 'rewind' feature, but this lets you maintain the previous conversation history in a separate thread, and even jump between them.