> For the complete documentation index, see [llms.txt](https://docs.dstillery.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.dstillery.com/using-ds-1/agents.md).

# Using agents

Use DS-1 agents to find, build, analyze, and optimize audiences.

## Start from discovery

Use these when you do not yet know which audience you want.

| Agent                                                                               | Start from                          | What you get                                                             |
| ----------------------------------------------------------------------------------- | ----------------------------------- | ------------------------------------------------------------------------ |
| [Find prebuilt audiences](/using-ds-1/agents/find-prebuilt-audiences.md)            | A topic, brand, domain, or category | Matching audiences from the DS-1 catalog, grouped and ready to syndicate |
| [Partnership audience search](/using-ds-1/agents/partnership-audience-search.md)    | A topic, brand, domain, or category | Audiences from Dstillery's data partners                                 |
| [LiveRamp data marketplace search](/using-ds-1/agents/liveramp-data-marketplace.md) | A topic, brand, domain, or category | Audiences from providers across the LiveRamp marketplace                 |

## Build a custom audience

Use these when you know the signal you want to model against.

| Agent                                                                                                 | Seed                                                        | Best for                                                             |
| ----------------------------------------------------------------------------------------------------- | ----------------------------------------------------------- | -------------------------------------------------------------------- |
| [Build targetable segments from any document](/using-ds-1/agents/build-segments-from-any-document.md) | Any document: PDF, Word, PowerPoint, Excel, image, or email | Going from a client document to personas and audiences in four steps |
| [Build or refine an audience brief](/using-ds-1/agents/build-or-refine-an-audience-brief.md)          | A brief, RFP, or campaign description                       | Turning a brief into a targeting plan before anything is built       |
| [Build a domain seeded audience](/using-ds-1/agents/build-a-domain-seeded-audience.md)                | Websites                                                    | Modeling the people who visit a known set of sites                   |
| [Build a search LAL audience](/using-ds-1/agents/build-a-search-term-seeded-audience.md)              | Search terms                                                | Reaching active intent as it happens                                 |
| [Build a purchase intent audience](/using-ds-1/agents/build-a-purchase-intent-audience.md)            | Product signals                                             | Shoppers in market for a specific category                           |
| [Build a compound audience](/using-ds-1/agents/build-compound-audience.md)                            | Existing audiences and websites                             | Combining segments with and / or logic and exclusions                |

## Measure and instrument

| Agent                                                                                  | What it does                                                                                    |
| -------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------- |
| [Analyze predictive lift scores](/using-ds-1/agents/analyze-predictive-lift-scores.md) | Scores first-party, custom, and 3rd-party audiences against a pixel, before budget is committed |
| [Create a pixel](/using-ds-1/agents/create-a-pixel.md)                                 | Sets up the tracking tag that feeds first-party audiences and lift analysis                     |

## Around the agents

Three pages sit outside the agent list but touch every one of them.

* [Explore audience insights](/using-ds-1/insights.md) profiles a topic, brand, domain, or your own pixel data, so you know who you are targeting before you build.
* [Work in projects](/using-ds-1/projects.md) keeps a campaign's files, audiences, and agent runs in one shared place, and can now load brand and competitor context straight from the web.
* [Build and activate to a DSP or SSP](/using-ds-1/readme-2/activation/programmatic-dsps-ssps.md) is where most agents end: picking reach sizes and sending audiences to a destination.