> ## 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.

# Attributes Catalog

export const TUsageAnalyzer = () => <>
    Telemetry Usage Analyzer
  </>;

<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>

The **Attributes Catalog** in Chronosphere Observability Platform is a centralized
catalog of raw *telemetry attributes*. Use it to search for or filter metric labels,
log fields, and trace tags across your observability data.

The Attributes Catalog also provides tools to view and manage
[derived attributes](/investigate/system-library/attributes-catalog/derived-attributes).
Derived attributes standardize and consolidate attribute names and values across
metrics without modifying the underlying data.

## Access the Attributes Catalog

In the navigation menu, select
**System Library <span aria-label="and then">></span> Attributes Catalog**.

The Attributes Catalog has two tabs:

* **Raw**: Displays attribute names from your ingested telemetry.
* **Derived**: Lists all derived attributes.

## View raw attributes

The Attributes Catalog's **Raw** tab provides a centralized table of telemetry attributes
that you can search and filter. Telemetry attributes encompass all supported telemetry
**types** in Observability Platform:

* Metric labels
* Log fields
* Trace tags

To view the raw attributes catalog:

1. In the navigation menu, click
   **System Library <span aria-label="and then">></span> Attributes Catalog**.
2. Click the **Raw** tab to view the table of raw attributes.

The table has the following columns, and can be sorted by clicking the column's
header:

* **Key**: The attribute's unique identifier, depending on its type. For example,
  a metric label's **Key** is its label name. If the value is linked, you can click
  it to open the attribute's [details panel](#view-attribute-details).
* **Type**: The attribute's telemetry type.

Click the **Rows per page** dropdown to change the number of displayed rows, and
click the **<Icon icon="chevron-left" /> Previous page** and
**<Icon icon="chevron-right" /> Next page** buttons to navigate between table pages.

### Filter raw attributes by key

To filter raw attributes by key:

1. Click the **Search raw attributes** field.
2. Begin entering text.

The table of raw attributes updates to display only the rows whose key contains
the entered text.

To return to the unfiltered view, delete the contents of the **Search raw attributes**
field.

### Filter raw attributes by telemetry type

To filter raw attributes by telemetry type:

1. Click the **Type** dropdown.
2. Click one of the listed telemetry types, or click **All** to remove the filter.

The table of raw attributes updates to display only the rows with the matching
type.

## View attribute details

To view additional details about an attribute:

1. In the navigation menu, click
   **System Library <span aria-label="and then">></span> Attributes Catalog**.
2. Click the **Raw** tab to view the table of raw attributes, or the **Derived**
   tab to view a table of derived attributes.
3. Click the link to the attribute in the **Key** (Raw) or **Label name** (Derived)
   column.
4. Optional: In the **Derived** tab, click the
   <Icon icon="ellipsis-vertical" /> three vertical dots icon on the attribute's
   row, and then click **<Icon icon="file-text" /> View details**.

This opens the attribute's details panel, the contents of which depend on its telemetry
type.

<Note>
  Only metric labels and metrics-typed derived attributes support detail views. Log fields
  and trace tags don't yet support this view and therefore aren't linked from the
  Attributes Catalog.
</Note>

A metrics label's detail view contains two tabs:

* **Overview**: The attribute's metadata and usage details.

  The **Overview** tab's **Metadata** section lists the number of **associated metrics**
  and **unique values** for the attribute, and its **managed** source.

  The **Top usage (last 30 days)** section lists the **Top 3 dashboard queries**
  and **Explorer queries** that use the derived attribute, and the attribute's
  **Top users**. Usage is sorted by execution counts.
* **Values**: A list of all of the attribute's associated values.

The panel also includes a link to
**<Icon icon="square-arrow-out-up-right" /> Open in Usage Analyzer**, which opens the
[<TUsageAnalyzer />](/investigate/analyze/usage) for the attribute.