A coding agent that lives in your terminal.

flowchart TD
    A["You type<br/>(TUI · ratatui)"] -->|Op channel| B["Engine<br/>turn loop + tools"]
    B -->|HTTPS / SSE| C["DeepSeek API<br/>V4 family"]
    C -->|stream events| B
    B -->|tool call| T["read_file · edit_file · grep<br/>apply_patch · exec_shell<br/>mcp_&lt;server&gt;_&lt;tool&gt;"]
    T -->|approval Y/N| P["Approval<br/>dialog"]
    P --> B
    T -->|exec| S["Sandbox<br/>seatbelt · landlock · win32"]
    classDef accent fill:#e9eefe,stroke:#0e0e10,stroke-width:1px;
    classDef api fill:#0e0e10,stroke:#0e0e10,color:#ffffff;
    class C api;
    class T,P,S accent;