[[_TOC_]]
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One line: **let the agent turn your data into an interactive chart.**
- **Three data sources** โ local data files (`.csv` / `.xlsx` / `.xls`), or a table inside a DuckDB database (`.duckdb` / `.ddb`). Just say it in chat.
- **Supports millions of rows** โ data stays on the host; the chart fetches only the visible window, so zooming and panning stay smooth even at millions of rows.
- **Full chart workbench** โ line / scatter; box zoom, wheel zoom, drag-to-pan, hover readouts.
- **Filter** โ conditional filters (equal / not equal / range / multi-select, with date ranges).
- **Group** โ one line per distinct value of a column.
- **SQL** โ write SQL directly.
- **Native look & feel** โ follows DSH's language (zh / en) and theme (dark / light) automatically, no reload needed.
- **Per-session isolation** โ each conversation sees only its own charts; deleted sessions are cleaned up.