---
title: "Crews: Reference"
description: "Reference for crew composition, process semantics, task context passing, and execution modes."
icon: "book"
mode: "wide"
---

## Crew contract

- `agents`: available executors
- `tasks`: work units with expected output
- `process`: ordering and delegation semantics

## Runtime

- `kickoff()` for synchronous runs
- `kickoff_async()` for async execution

## Canonical source

Primary API details live in [/en/concepts/crews](/en/concepts/crews).