> For the complete documentation index, see [llms.txt](https://selen-ai.gitbook.io/selen-ai-user-guide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://selen-ai.gitbook.io/selen-ai-user-guide/signals-real-time-alerts-from-selen/what-is-a-signal.md).

# What Is a Signal?

A **Signal** in Selen AI is an AI-generated notification or data point that highlights a notable event, behavior, or status change in a token pool.

Rather than waiting for manual review, Signals allow you to stay ahead of the curve with timely updates.