> ## Documentation Index
> Fetch the complete documentation index at: https://docs.augmentcode.com/llms.txt
> Use this file to discover all available pages before exploring further.

# How Experts respond to events

> Understand how Cosmos Experts respond to events and interact with the outside world.

Experts respond to the outside world through three mechanisms:

* **Triggers** start Expert sessions from external events, schedules, or webhooks.
* **Subscriptions** keep a running session listening for follow-up events after it has started.
* **Integrations** give the Expert controlled access to external systems, such as code hosting, ticketing, communication, observability, and custom tools.

For the full explanation of how these fit together, see [Understanding Automation](/cosmos/automations).

## See Also

* [Understanding Automation](/cosmos/automations) — how triggers, subscriptions, and events wire an Expert to the outside world.
* [Using Webhooks as Triggers](/cosmos/config-webhooks) — connect custom event sources.
* [Using Schedules as Triggers](/cosmos/config-schedules) — run Experts on cron schedules.
* [Configure MCP Servers](/cosmos/config-mcp) — connect custom tools and context sources.