@runbit/agent

agent() and team() — a model plus tools, as a Runnable. The agent knows ChatModel, never a provider.

npm install @runbit/agent @runbit/openai

import { agent, team } from "@runbit/agent";
import { openai } from "@runbit/openai";

const assistant = agent({
  model: openai("gpt-4o-mini"),
  tools: [weather],
  system: "You are a concise travel assistant.",
});

const result = await app.run(assistant, { message: "Weather in Tokyo?" });
console.log(result.text);

// Chain agents: each receives the previous one's output.
const crew = team({ agents: [researcher, writer, editor] });

The agent loops: call the model, run any requested tools, feed results back, repeat until it answers (bounded by maxSteps). Emits agent:start/agent:end plus tool and llm events.

Part of Runbit — the AI Runtime. Everything executes through one small, event-driven runtime; agents, workflows, RAG, and observability are packages on top.

• Umbrella: @runbit/runtime
• License: MIT