Opus is able to do a lot more, people are doing better plugins and orchestration (looping). Subagents are now super easy, so you can either have specialized subagents (i have a tester, a bitcoin developer, a reviewer), or just for parallel dev. Each subagent is its own session so it isolated the c...

Don't sleep on frontend-design skill. https://github.com/anthropics/claude-code/tree/main/plugins/frontend-design