Unofficial fork of Ghostty · macOS

The Agentic Maxxing
Terminal

A fast, native terminal built for running multiple coding agents in parallel — and a terminal that agents can actually understand. Sidebar sessions, live agent status, and tab control for Claude Code & Codex.

Download for macOS View on GitHub

Signed & notarized universal build · built on the maxx-v* release line

Maxx showing a sidebar with multiple coding agent sessions running in parallel
What's Different

Ghostty's core, plus a layer for parallel agents

Maxx keeps Ghostty's fast native terminal core and adds a focused workflow layer for people running many coding agents at once.

Sidebar-first organization

Tabs and sessions live in a sidebar built for switching between many parallel agent terminals at a glance.

Live agent status

Sidebar indicators surface each session's state — running, needs input, error, or idle — for supported CLIs.

Agent tab control

Claude Code and Codex can open, name, prompt, monitor, and manage Maxx tabs through the optional maxx-tabs skill.

macOS-first distribution

A dedicated, signed and notarized release path for the fork — published directly through GitHub Releases.

Fork-tagged artifacts

Release artifacts are published from maxx-v* tags, kept separate from upstream Ghostty builds.

Stays lightweight

Close to "Ghostty with a sidebar and agent statuses" — low idle overhead, terminal feel intact, easy to maintain against upstream.

Agent Tab Control

A terminal agents can understand

Maxx isn't just a terminal for running agents — it's one they can work with. The bundled maxx-agent-hook helper and optional maxx-tabs skill let supported agents drive the running Maxx window instead of spawning hidden background processes.

  • Open tabs & windows for another agent session, optionally with an initial prompt.
  • Start task-specific commands in the same project directory.
  • List tabs with the foreground process and last reported agent state.
  • Rename, prompt, and close tabs when you ask an agent to coordinate visible work.

Install or remove the Claude Code and Codex skills from Maxx Settings, with default permission / sandbox modes for agent-spawned sessions. Explicit agent CLI flags always take precedence.

claude — maxx-tabs
# ask Claude Code to coordinate visible work
› list tabs
codex / funnel-auditrunning
claude / attributionneedsInput
codex / test-coverageidle
claude / errorerror
› open tab "deploy" --prompt "ship v0.2.3"
✓ opened tab · claude session started in ~/Developer/maxx
Platform & Agent Status

Where things stand today

AreaStatus
macOS sidebar tabs / sessionsSupported
macOS sidebar agent statusesSupported
macOS agent tab control skillClaude Code & Codex
Claude Code status integrationAutomatic
Codex status integrationAutomatic
X.ai CLI status integrationIn progress
Gemini CLI status integrationIn progress
Linux / GTK sidebar agent statusesNot in UI yet

The underlying hook event pipeline is shared infrastructure. Other CLIs can use that pipeline, but only Claude Code and Codex currently have built-in status integration.

Project Scope

Lightweight by design

Maxx's north star is to stay a lightweight, high-performance Ghostty terminal for running multiple coding agents in parallel.

✅ Good fit

  • Agent status integrations for more terminal-first CLIs — Grok, Gemini, and others.
  • Sidebar and session polish that improves switching between parallel agent terminals.
  • Terminal correctness, performance, rename, copy/paste, and macOS integration fixes.
  • Small release, packaging, or distribution improvements for this fork.

⛔ Out of scope

  • Built-in browser panels, dashboards, task boards, or other heavyweight app surfaces.
  • Heavyweight agent orchestration or management UI beyond tab control and session status.
  • Features that significantly increase idle resource usage or add maintenance-heavy surfaces.
  • General-purpose workflow features better handled by agent CLIs or external tools.

When in doubt, prefer terminal-native, lightweight, and maintainable.

Get Maxx

macOS builds are published through GitHub Releases, produced from maxx-v* release tags and signed + notarized.

Download DMG Download .zip All releases
Universal (Apple Silicon & Intel) Signed & notarized Build from source with zig build