Halyard adds phone alerts when AI coding agents need an answer

An AI coding agent waiting for an answer can now reach its user’s phone through Halyard. Version 3.1.5 adds agent notifications to the remote terminal app, including optional Claude Code push alerts that arrive on an iPhone or iPad even when Halyard is closed, according to its App Store listing.

An alert with a session to return to

The update distinguishes between notifications inside the app and push alerts sent to a mobile device. While Halyard is open, it flags an agent asking a question or finishing a long task. Each alert identifies the session and server, giving users a specific place to return rather than an undifferentiated notice that something happened.

For Claude Code push notifications, setup has two switches. The hooks—optional integrations that trigger agent alerts—are configured separately for each server. Halyard says it preserves existing hooks in Claude Code’s settings.json configuration file and makes a backup, rather than discarding the user’s setup.

Enable Claude Code push alerts

1. In the server’s settings, turn on “Claude Code hooks for agent alerts.”
2. Then enable “Push to this iPhone when an agent asks” for the receiving device.

The release notes also describe more selective detection of agents waiting for input. Halyard says quoted prompts in an agent’s output no longer get mistaken for actual questions, and Claude Code’s own questions are now recognized. Agent notifications also summarize where the agent is and what it is working on in one sentence.

The work stays on the user’s server

Halyard is a terminal for accessing work running elsewhere, not a service that hosts the coding agents. It connects over SSH, a secure connection to the user’s server. Every terminal session runs inside tmux, a tool that keeps the session alive after the connecting device disconnects.

That arrangement lets users start a build on a Mac, check the same session from an iPhone, and return to it on the Mac. Halyard says the command continues through lost Wi-Fi or a closed laptop, with the session’s earlier output still available when the user reconnects.

The app lists Claude Code, Codex and Gemini among the agents users can monitor on their servers. The closed-app push notification instructions specifically describe Claude Code; they should not be read as a promise of the same push integration for every listed agent.

A separate path for notifications

The distinction qualifies Halyard’s description of a direct connection with nobody in the middle: that describes terminal traffic, while optional push alerts use a relay. The developer’s App Store privacy disclosure separately says the app collects no data. Apple notes that it has not verified that disclosure.

Users still need their own reachable server with tmux installed. Halyard supports Mac, iPhone and iPad, requiring macOS 15 or later, or iOS and iPadOS 17 or later. Each device stores its own connection keys in its own Keychain, the device’s credential storage.

The listing offers a free version, a 14-day trial and Halyard Pro at $24.99. It describes Mac, iPhone and iPad as a single app, with one purchase covering every device.