Interactive TUI

The CLI has two tail modes:

• sentry tail (or sentry tail --tui) → opens an interactive fullscreen TUI with ratatui + crossterm. Default mode when the terminal is a TTY.
• sentry tail --stream → non-interactive mode, one line per event (JSON or colored text). Ideal for piping (| jq, | grep), structured logs or redirection. Automatically enabled when stdin/stdout is not a TTY (detection via std::io::IsTerminal).

Fullscreen layout — 3 zones

┌──────────────────────── Sentry — live ────────────────────────┐
│ req/s 412 ▁▂▃▅▇▆▄▂   Info 9.8k  Low 142  Med 31  High 7  Crit 1│  ← header/sparkline
├────────────────────────────────────────────────────────────────┤
│ CRIT 1.2.3.4   POST /api/login   SQLi:' OR 1=1--               │  ← colored stream
│ HIGH 5.6.7.8   GET  /.env         UnknownRoute+sensitive        │     (scroll, filter)
│ MED  9.0.1.2   GET  /wp-admin     ScanBehavior (12x404/60s)     │
│ ...                                                            │
├────────────────────────────────────────────────────────────────┤
│ Top IPs suspeitos        │ Top paths atacados   │ ASN/Geo      │  ← aggregated footer
│ 1.2.3.4    18  CRIT      │ /admin     22        │ AS1234  41%  │
│ 5.6.7.8    11  HIGH      │ /.env      9         │ Tor     3%   │
└────────────────────────────────────────────────────────────────┘
 [f]iltrar [b]loquear [c]hallenge [i]nfo IP [r]otas [q]sair

Shortcuts

Key	Action
j/↓	Navigate down
k/↑	Navigate up
g	Go to top
G	Go to bottom
Space	Pause/freeze the stream (buffered)
Enter	Open event detail (headers, payload, signals, AI verdict)
b	Block selected IP (asks for confirmation)
c	Trigger Cloudflare challenge
i	Show full IP history
f	Open filter (by level/IP/path/ASN)
r	Open routes panel
/	Text search
q/Esc	Quit

Responsive rendering

• Terminal resizing supported.
• Footer columns switch based on width.

Themes

--theme dark|light|mono (accessibility / colorless terminals).

Implementation

Standalone TUI in sentry-cli/src/tui.rs (~250 lines), reads recent events from Postgres, scrollable, with shortcuts j/k/Space/g/G/q/ Esc.