Tool Pick|agent-tree — Watch, Stop, and Switch Models on Your Claude Code Subagents, Live in the Terminal
agent-tree is a Claude Code plugin that opens a live tree panel in your terminal showing every running subagent. Unlike comparable read-only monitors, it lets you click to stop a subagent, swap its model, or send it a new instruction. Install: `claude plugin install agent-tree --marketplace MikeGT4/agent-tree`. It solves the problem that once a multi-agent workflow is running, you can't see what's happening inside it or change course.