---
title: "Claude"
description: "Use Claude Code as a sandbox agent."
---

## Usage

```typescript
const session = await client.createSession({
  agent: "claude",
});
```

## Capabilities

| Category | Values |
|----------|--------|
| **Models** | `default`, `sonnet`, `opus`, `haiku` |
| **Modes** | `default`, `acceptEdits`, `plan`, `dontAsk`, `bypassPermissions` |
| **Thought levels** | Unsupported |

## Configuring effort level

Claude does not support changing effort level after a session starts. Configure it in the filesystem before creating the session.

```ts
import { mkdir, writeFile } from "node:fs/promises";
import path from "node:path";

const cwd = "/path/to/workspace";
await mkdir(path.join(cwd, ".claude"), { recursive: true });
await writeFile(
  path.join(cwd, ".claude", "settings.json"),
  JSON.stringify({ effortLevel: "high" }, null, 2),
);

const session = await client.createSession({
  agent: "claude",
  cwd,
});
```

<Accordion title="Supported settings file locations (highest precedence last)">

1. `~/.claude/settings.json`
2. `<session cwd>/.claude/settings.json`
3. `<session cwd>/.claude/settings.local.json`

</Accordion>