Claude

Usage

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.

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,
});

Supported settings file locations (highest precedence last)

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