Visualize the current context window usage — token estimates per component (system prompt, tools, workspace files, messages, free space). Use when the user asks about context size, token usage, context breakdown, "how full is the context", or wants to see what's consuming their context window.

可视化当前上下文窗口的使用情况——显示每个组件的令牌估算值（系统提示、工具、工作区文件、消息、剩余空间）。当用户询问上下文大小、令牌使用情况、上下文组成、“上下文已占满多少”或想查看哪些内容占用了上下文窗口时使用。