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Usage

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

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Capabilities

CategoryValues
Modelsdefault, sonnet, opus, haiku
Modesdefault, acceptEdits, plan, dontAsk, bypassPermissions
Thought levelsUnsupported

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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,
});
  1. ~/.claude/settings.json
  2. <session cwd>/.claude/settings.json
  3. <session cwd>/.claude/settings.local.json