Agentastic.dev — Multi-Agent IDE for macOS (Claude Code, Codex, Gemini, Hermes Agent)

3 min read Original article ↗

Agentastic.dev product icon

Agentic Development Environment

Run 30+ parallel coding agents — Claude Code, Codex, Command Code, Gemini, Hermes Agent, Cursor, Copilot, Junie, OpenHands, and more — in complete isolation using Git worktrees or Docker containers. Each gets its own built-in IDE, Ghostty terminal, and browser. Review diffs and run multi-agent code review before you merge.

Download

0.6.5 | macOS 14+

or brew install agentasticai/tap/dev

Key Features

Everything in One ADE Window

Stop switching between your IDE, terminal, browser, and git client. Built-in code editor, browser, and Git integration.

Native ADE for AI Agents

Run 30+ agents — Claude Code, Codex, Command Code, Gemini, Cursor, Copilot, Junie, OpenHands, and more — in parallel. Built in Swift with Ghostty.

Changes Are Isolated

Each agent runs in its own isolated Docker container or Git worktree. No merge conflicts, no cross-contamination between tasks.

Native Diff & Agentic Code Review

Review agent changes with built-in diff viewer. Supports Claude, Codex, and CodeRabbit for automated code review.

Fast Code Search

Built-in fuzzy finder with Cmd+P. Quickly navigate files, symbols, and go to any line.

Open Anywhere

Open worktrees in VS Code, Cursor, Xcode, JetBrains, or any terminal. Works with Linear, GitHub, GitLab, and Bitbucket.

Built-in Browser

Agents control a browser to test apps live with full browser-use support. Includes React Grab and direct share.

Kanban Board

Organize worktrees into drag-and-drop Kanban columns by label. See everything at once. Know who's done, who needs input.

Linear Integration

Connect your workspace to Linear and link worktrees to issues. Track which agents are working on which tasks.

32 Supported Agents

Agentastic auto-discovers coding agents installed on your system, including Hermes Agent. Any terminal-based agent works out of the box.

Claude CodeClaude Code

CodexCodex

Command CodeCommand Code

Gemini CLIGemini CLI

Hermes AgentHermes Agent

CursorCursor

CopilotCopilot

JunieJunie

OpenHandsOpenHands

Letta CodeLetta Code

Claude CodeClaude Code

CodexCodex

Command CodeCommand Code

Gemini CLIGemini CLI

Hermes AgentHermes Agent

CursorCursor

CopilotCopilot

JunieJunie

OpenHandsOpenHands

Letta CodeLetta Code

Cortex CodeCortex Code

OB-1OB-1

AmpAmp

DroidDroid

OpenCodeOpenCode

Qwen CodeQwen Code

Kilo CodeKilo Code

ClineCline

ContinueContinue

GooseGoose

Cortex CodeCortex Code

OB-1OB-1

AmpAmp

DroidDroid

OpenCodeOpenCode

Qwen CodeQwen Code

Kilo CodeKilo Code

ClineCline

ContinueContinue

GooseGoose

CharmCharm

CodebuffCodebuff

KiroKiro

KimiKimi

AuggieAuggie

Rovo DevRovo Dev

Mistral VibeMistral Vibe

PiPi

AiderAider

AutohandAutohand

mini-SWE-agentmini-SWE-agent

AgentasticAgentastic

CharmCharm

CodebuffCodebuff

KiroKiro

KimiKimi

AuggieAuggie

Rovo DevRovo Dev

Mistral VibeMistral Vibe

PiPi

AiderAider

AutohandAutohand

mini-SWE-agentmini-SWE-agent

AgentasticAgentastic

How it works

1. Add your git repo

Agentastic.dev handles worktree creation and management.

2. Deploy agents

Each worktree gets its own Ghostty terminals. Run Claude Code, Codex, Command Code, Gemini, Junie, OpenHands, or any of the 30+ supported agents in an isolated workspace.

3. Review code

See who's working, what needs attention, and review code with built-in diff and merge tools.

See Agentastic.dev in action

Frequently asked questions

Free without limits. No sign-up required. No strings attached. We don't charge for the agents. For Agents, you'll need agent subscriptions (Claude Code/Codex/Gemini/Junie/etc) or API access. You pay vendors (Anthropic/OpenAI/Google/JetBrains/etc) directly.

None. Agentastic.Dev does not collect, retain, or train on any of your data (usage, code, etc). Nothing, nada, zilch, null.

Each agent runs in its own isolated branch in Git worktree or docker container; they can work simultaneously without conflicts. You can monitor all agents in real-time and switch between them instantly.

Yes, each Agentastic workspace is a new git worktree. This allows each coding agent to work in complete isolation without conflicts.

We support 33 built-in CLI agents, including Claude Code, Codex, Command Code, Gemini, Hermes Agent, Cursor, GitHub Copilot, Junie, OpenHands, Letta Code, Cortex Code, OB-1, Amp, Droid, Goose, Aider, Cline, OpenCode, and more. Any terminal-based agent can also be added as a custom agent. We also support Claude, Codex, and CodeRabbit for code review. Want to see something else? Email us at hi@agentastic.ai.

Agentastic.dev requires macOS 14.0 (Sonoma) or later and runs on both Apple Silicon and Intel processors.

Right now Dev is still in closed development. But our goal is to build an open, community-driven ecosystem, and extensibility is on the roadmap. If you'd like to shape what that looks like, ping us on Twitter or join our Discord!

Dev supports hooks, including .agentastic/setup.sh, which executes upon worktree creation. You can setup your environment variables or copy them using this hook. See the documentation for more examples.

We’d love to hear from you