Tessera

Agent center

The agent center gathers your Claude Code and Codex sessions from across every connection — tmux windows, panes, and raw sessions — onto one page, and lets you answer their prompts without hunting for the right pane. It’s experimental and off by default: enable it in settings → experimental → agent center. Turning it off later does not uninstall host hooks.

Open it from the sidebar’s agents entry, with ⌘⇧A, or from the top-bar attention button that appears when agents are waiting.

The agents page

Cards are grouped by status — needs input, just finished, working, idle, status unavailable — under a summary line (“N agents · N sessions · N hosts”) and an “agents need attention / all caught up” banner.

Each card shows the agent’s current prompt. From a card you can:

press ⇥ to move between cards and 1–9 to pick a numbered option,
⌘↩ open — jump straight to that pane,
type in the message field — “message <name>…” queues, “prompt <name>…” sends immediately,
interrupt the agent.

Answers re-check the live prompt before being sent, and sends verify submission — so you never answer a question the agent already moved past.

The agents page with cards grouped under needs input, just finished, working, and idle, each card showing provider, session, host, window and pane, plus inline answer buttons and a prompt field. — Cards grouped by what needs you first. Blocked agents surface their choices as inline buttons.

How detection works

Baseline detection is heuristic, read from terminal text, using the same grammars as swipe pad profiles (built-in Claude Code and Codex grammars, plus any custom profiles you define).

For precise status, Tessera offers an opt-in host hook: a terminal exposes process presence and pixels, but not whether an agent is computing, idle, or blocked — the agents’ own lifecycle hooks are the authoritative signal. Installing it (per host, from the agents page) places ~/.config/tessera/agent-lifecycle.sh on the server, merges hook entries into the Claude Code and Codex user configs — never rewriting your existing aliases or functions — and adds a sourcing line to .zshrc / .bashrc (marked # TESSERA-AGENT-LIFECYCLE). The page shows the hook’s state: not installed / needs an update / inactive.

Attention notifications

With agent attention notifications enabled, Tessera posts an iOS banner — “<host> · <window>”, “Claude Code needs input”, “… just finished” — when an off-screen agent finishes or needs you while Tessera is backgrounded. Tapping the banner routes straight to the right pane.

Enabling this turns terminal-bell background notifications off once; the agent channel is the more precise one.
iPadOS may suspend longer sessions in the background, so delivery on very long-running sessions is best-effort.

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