The short answer: an AI coding agent terminal is a terminal designed around agents rather than only around shell commands. It runs agent CLIs like Claude Code, Codex and Gemini CLI in real terminal panes, keeps their sessions organized, shows what they changed, and — the important part — lets agents hand work to each other and check each other’s results. If you run more than one agent, it saves you from juggling windows and reviewing everything by hand.
Why a regular terminal stops being enough
One agent in one terminal tab works fine. The trouble starts when you run several: tabs pile up, you lose track of which agent changed which file, and every result still needs your review. You become the glue between agents.
Features that matter
| Feature | Why it matters |
|---|---|
| Real terminals | Agent CLIs keep their full interface, your shell and aliases still work |
| Sessions and groups | Each piece of work stays separate and resumes where you left off |
| Roles and hand-offs | One agent writes, another reviews, a third tests |
| Tests in the loop | Results are checked against your own test suite, not taken on trust |
| Isolation | Git worktrees keep parallel agents from colliding |
| Changes view | See the diff and commit it without leaving the window |
| Local-first | Your code stays on your machine |
Do I need to change agents?
No — and you should not have to. A good agent terminal drives the agents you already use and are signed in to. You keep your plans, your models and your habits.
Where Vulgr fits
Vulgr is a free, open-source (MIT) terminal for AI coding agents on macOS, Windows and Linux. It does not host its own model: it runs the agent CLIs already on your computer — Claude Code, Codex, Antigravity, Gemini CLI, Cursor and OpenCode — plus any OpenAI-compatible endpoint.
On top of real xterm.js + node-pty terminals it adds:
- multi-agent modes — Duo Loop, Agent Swarm and Orchestrator,
- team chat — mention several agents in one message; they discuss, verify with your tests and reply with one synthesis,
- project tools — diff viewer, AI commit messages, pull requests, project memory, a package manager and a dependency optimizer,
- a command box — describe a command in plain words with
#, or ask a question with?.
Everything runs locally; Vulgr goes online only for update checks, GitHub sign-in and the agent CLIs themselves. Install Vulgr.