Class: Agent

const agent = new Agent({ model: "anthropic/claude-sonnet-4-5" })
const result = await agent.run("Summarize this repository.")
await agent.close()

new Agent(options?): Agent;

const agent = new Agent({
  instructions: "You are a release reviewer.",
  disallowedTools: [],
})

client(): Promise<AgentClient>;

const sessions = await (await agent.client()).sessions.list()

close(): Promise<void>;

await agent.close()

createSession(options?): Promise<Session>;

const session = await agent.createSession({ title: "Investigation" })
await session.send("Start with the failing test.")

fork(sessionId, options?): Promise<Session>;

const fork = await agent.fork("ses_source", { messageId: "msg_boundary" })
await fork.send("Try another approach.")

resume(sessionId): Promise<Session>;

const session = await agent.resume("ses_existing")
await session.send("Continue.")

run(prompt, options?): Promise<RunResult>;

const result = await agent.run("Review the staged diff.")
if (!result.isError) console.log(result.text)

stream(prompt, options?): AgentStream;

const stream = agent.stream("Explain this repository.")
for await (const message of stream) console.log(message.type)