Re point 5, the simplest argument in favor of sub-agent workflows it that it allows the main agent context to remain free of a large amount of task-specific working context. This lets the main context survive longer before you need compaction. Compaction in CC is a major loss of context IME. Context compaction is generally the point where I reset the conversation as the compacted conversation is practically as bad as a new one but has a bunch of wasted space already.

How I wish we could just see and patch up the raw context before it goes out. If I could hand edit a compaction it would result in better execution going forward and better for my own mental model. It’s such a small feature, but Anthropic would never give it to us.