oh-my-claudecode vs Antigravity
Which should you use? A side-by-side look at what each one does, who it suits, what it costs, how hard it is to set up, and where each falls short.
Open source · MIT
Multi-agent orchestration layer for Claude Code, installed as a plugin or npm CLI.
Open source · MIT
A plugin that lets the Opencode coding tool sign in to Google's Antigravity IDE via OAuth to use its models.
The short answer
Choose oh-my-claudecode if you need…
- Developers already using Claude Code who want multi-agent workflows
- Teams experimenting with parallel AI agents on coding tasks
- People who want a prebuilt autopilot command for building features from a short description
- Users comfortable with Linux or macOS-style terminals and npm
Choose Antigravity if you need…
- Developers who already use Opencode and have a Google account with Antigravity access
- People who want to switch between several Google accounts and check their quota status
- Users comfortable editing a JSON config file and running commands in a terminal
Side-by-side
| oh-my-claudecode | Antigravity | |
|---|---|---|
| Type | Dev tool | Dev tool |
| Price | Free and open source | Free and open source |
| Licence | MIT | MIT |
| GitHub stars | 40.5k | 11k |
| Setup difficulty | Intermediate | Intermediate |
| How you get it | Install with a package manager | Install with a package manager |
| Main language | TypeScript | TypeScript |
| Last code update | 4 days ago | 10 days ago |
What each one is
oh-my-claudecode
oh-my-claudecode (OMC) is an add-on for Claude Code, Anthropic's coding assistant. It adds commands and workflows that coordinate multiple AI agents working on a task in parallel, such as planning, building, and QA stages. The README describes it as aimed at making Claude Code usable with little setup, though the exact behavior of each workflow is documented on an external site rather than in the portion of the README provided.
Antigravity
This is an unofficial plugin for Opencode, a terminal coding tool. It lets you sign in with your Google account through OAuth so Opencode can call models that Antigravity (Google's IDE) provides, such as Gemini and Claude models, using Antigravity's rate limits. Accounts are stored locally, and the README notes that Google may restrict accounts that use third-party clients.
Best for
oh-my-claudecode
- Developers already using Claude Code who want multi-agent workflows
- Teams experimenting with parallel AI agents on coding tasks
- People who want a prebuilt autopilot command for building features from a short description
- Users comfortable with Linux or macOS-style terminals and npm
Antigravity
- Developers who already use Opencode and have a Google account with Antigravity access
- People who want to switch between several Google accounts and check their quota status
- Users comfortable editing a JSON config file and running commands in a terminal
Strengths
oh-my-claudecode
- Installs as a Claude Code plugin through slash commands or as an npm CLI
- Provides both in-session slash commands and a terminal CLI with the same setup step
- Released under the permissive MIT license with an active repository and a large number of stars
Antigravity
- Uses the setup flow already built into opencode auth login
- Lets you manage several accounts and see quota status in one place
- Written in TypeScript under the MIT license with a documented test suite
Not ideal for
oh-my-claudecode
- People who do not use Claude Code, since OMC is an add-on to it
- Users on environments without the flock utility who need named autopilot stage profiles, because those currently require Linux with flock
- Non-technical users who want a simple no-code tool, since setup involves slash commands, npm, and terminal use
Antigravity
- Anyone who needs guaranteed account safety, since the README warns Google may restrict accounts using third-party clients
- People not using Opencode, because the plugin only works inside it
- Users on older Opencode or Node.js versions, since it requires OpenCode 2.1.2+ and Node.js 20+
Trade-offs
oh-my-claudecode
- Named autopilot stage profiles currently require Linux with the flock utility, so other environments are limited to legacy autopilot
- npm may print a deprecation warning during CLI install that comes from an upstream dependency
- The README is long and relies on external documentation and a separate reference file for full detail
Antigravity
- Unofficial, and Google may restrict accounts using third-party clients
- Model availability depends on your Google plan and the README does not spell out limits
- Accounts file contains credentials and must be backed up and protected carefully
Getting started
oh-my-claudecode
Install the plugin from the Claude Code marketplace (run inside Claude Code, one line at a time)
/plugin marketplace add https://github.com/Yeachan-Heo/oh-my-claudecodeInstall the plugin (run inside Claude Code)
/plugin install oh-my-claudecodeAntigravity
Add the plugin to your Opencode config (in ~/.config/opencode/opencode.json, not a shell command)
"plugins": ["opencode-antigravity-auth@2.1.2"]Log in to Google through Opencode
opencode auth login googleFrequently asked questions
What is the difference between oh-my-claudecode and Antigravity?
oh-my-claudecode: Multi-agent orchestration layer for Claude Code, installed as a plugin or npm CLI. Antigravity: A plugin that lets the Opencode coding tool sign in to Google's Antigravity IDE via OAuth to use its models. oh-my-claudecode suits developers already using claude code who want multi-agent workflows, while Antigravity suits developers who already use opencode and have a google account with antigravity access.
Are oh-my-claudecode and Antigravity free?
oh-my-claudecode: Free and open source. Antigravity: Free and open source.
Is oh-my-claudecode or Antigravity more popular?
oh-my-claudecode has more GitHub stars (40.5k) than Antigravity (11k). Popularity isn't the same as fit — check which one matches your use case above.
What are other alternatives to oh-my-claudecode and Antigravity?
Other options people compare them with include OMX, wshobson/agents, planning-with-files, oh-my-opencode-slim, ECC.
Keep comparing
Built from our catalogue entries for both products: open-source details come from each project's README (AI-assisted, refreshed weekly) and GitHub data; AI-tool details are editorial. Spotted something wrong? Let us know from either product's page.