flowchart TD
    START["你的消息"] --> BUILD["组装查询配置"]
    BUILD --> CALL["调用 Anthropic API<br/>(SSE 流式传输)"]
    CALL --> STREAM["实时接收 token"]
    STREAM --> CHECK{模型要调用工具?}

    CHECK -->|是| TOOLS["执行工具<br/>(读文件/改代码/跑命令...)"]
    TOOLS --> BUDGET["结果预算控制<br/>(太大就存磁盘)"]
    BUDGET --> COMPACT{"快爆上下文窗口了?"}
    COMPACT -->|是| COMPRESS["自动压缩对话历史"]
    COMPRESS --> CALL
    COMPACT -->|否| CALL

    CHECK -->|否| DONE{"输出被截断?"}
    DONE -->|是,≤3次| CALL
    DONE -->|否| END["完成"]

    style TOOLS fill:#e1f5fe
    style COMPRESS fill:#fff3e0