@react-grab/opencode

OpenCode agent provider for React Grab. Requires running a local server that interfaces with the OpenCode CLI.

Installation

``bash
npm install @react-grab/opencode


or

pnpm add @react-grab/opencode

or

bun add @react-grab/opencode

or

yarn add @react-grab/opencode
`

Server Setup

The server runs on port 6567 by default.

$3

Start the server in the background before running your dev server:

`bash
npx @react-grab/opencode@latest && pnpm run dev
`

The server will run as a detached background process. Note: Stopping your dev server (Ctrl+C) won't stop the React Grab server. To stop it:

`bash
pkill -f "react-grab.*server"
`

$3

For better lifecycle management, start the server from your config file. This ensures the server stops when your dev server stops:

$3

`ts
// vite.config.ts
import { startServer } from "@react-grab/opencode/server";

if (process.env.NODE_ENV === "development") {
startServer();
}
`

$3

`ts
// next.config.ts
import { startServer } from "@react-grab/opencode/server";

if (process.env.NODE_ENV === "development") {
startServer();
}
`

> Note: You must have OpenCode installed (npm i -g opencode-ai@latest).

Client Usage

$3

`html


`

$3

Using the Script component in your app/layout.tsx:

`jsx
import Script from "next/script";

export default function RootLayout({ children }) {
return (


{process.env.NODE_ENV === "development" && (
<>
src="//unpkg.com/react-grab/dist/index.global.js"
strategy="beforeInteractive"
/>
src="//unpkg.com/@react-grab/opencode/dist/client.global.js"
strategy="lazyOnload"
/>

)}

{children}

);
}
`

$3

`tsx
import { attachAgent } from "@react-grab/opencode/client";

attachAgent();
`

Options

You can configure the OpenCode agent provider:

`typescript
import { createOpenCodeAgentProvider } from "@react-grab/opencode/client";

const provider = createOpenCodeAgentProvider({
serverUrl: "http://localhost:6567", // Custom server URL
getOptions: () => ({
model: "claude-sonnet-4-20250514", // AI model to use
agent: "build", // Agent type: "build" or "plan"
directory: "/path/to/project", // Project directory
}),
});
`

How It Works

`
┌─────────────────┐ HTTP ┌─────────────────┐ stdin ┌─────────────────┐
│ │ localhost:6567 │ │ │ │
│ React Grab │ ──────────────► │ Server │ ─────────────► │ opencode │
│ (Browser) │ ◄────────────── │ (Node.js) │ ◄───────────── │ (CLI) │
│ │ SSE │ │ stdout │ │
└─────────────────┘ └─────────────────┘ └─────────────────┘
Client Server Agent
`

1. React Grab sends the selected element context to the server via HTTP POST
2. Server receives the request and spawns the opencode` CLI process
3. OpenCode processes the request and streams JSON responses to stdout
4. Server relays status updates to the client via Server-Sent Events (SSE)