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

# System Library

The **System Library** collects reference resources for telemetry data across
Chronosphere Observability Platform. The System Library is composed of the following
Observability Platform tools:

* **[Attributes Catalog](/investigate/system-library/attributes-catalog):** Review
  every raw and [derived](/investigate/system-library/attributes-catalog/derived-attributes)
  telemetry attribute in a tabular list.

  <Note>
    This feature is in Early Access (EA), and might not be visible in your app. To learn
    more about this program and the features it contains, see the
    [Early access](/early-access) page.
  </Note>
* **[Metrics Catalog](/investigate/system-library/metrics-catalog):** Review every
  metric received by Observability Platform in a tabular list.