Tessera

Notifications

Tessera turns the terminal bell (BEL) into something useful, in three independent channels under settings → terminal → bell:

• sound — a soft tink when the terminal emits BEL. It mixes with your music, and only plays when the belling pane is off-screen or the app is backgrounded.
• visual flash — an accent glow plus a dot on the tmux tab pill that bell’d; foreground only.
• notify when backgrounded — a real iOS banner (“<host> · <pane>”) so a long-running job can call you back. Enabling it triggers the iOS notification-permission prompt; if you deny it, Tessera shows a sheet that deep-links to the Settings app.

A test bell button previews the sound and the visual flash. Bells are rate-limited to one event per source (session or tmux window) per 2 seconds.

Over tmux, control-mode wiring is what tells Tessera which window bell’d, so the flash and the banner point at the right tab.

Agent attention

If you use the agent center, its attention notifications are a separate, more precise channel: banners when a Claude Code or Codex session needs input or just finished, routed to the exact pane when tapped. Enabling agent attention notifications turns the bell’s background banners off once — the agent channel carries the same information with less noise.

iPadOS may suspend long background sessions, so background delivery is best-effort for very long-running work.

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