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

# Interviews

> How your Researcher Agent runs each interview, and what it captures.

An **interview** is a guided exchange between your Researcher Agent and a participant. The agent asks questions based on your study goals and adapts its follow-ups to each participant's responses, so no two interviews are identical.

## How interviews work

1. **The participant opens your link** and sees your outreach message.
2. **The agent asks goal-driven questions** that work through your study goals.
3. **It follows up** on interesting or unclear responses.
4. **It wraps up** once your goals are covered or the participant stops responding.

## Interview summaries

Each interview is summarized at the top of the transcript: a headline and a few key points covering what was discussed. Hover over **View full summary** to expand it.

## Interview grades

Each interview is graded on how rich its responses are. The strongest interviews get an **A** or **A+** badge, so you can spot them in the list, and you can filter the list by grade. See [Review interviews](/guides/review-interviews).

## PII detection

Personally identifiable information is redacted in interviews. Redacted content appears as inline badges showing the type of data removed (names, emails, phone numbers, addresses, credit cards, financial info, SSNs, ID documents, and dates of birth), which keeps transcripts readable while protecting your participants' privacy.

## Voice messages

Participants can send voice messages instead of typing. Each is transcribed to text in the transcript, and you can play the original recording.

## Interview metadata

Each interview captures context you can use to segment and filter your results:

* **Custom metadata**: any data you pass via URL parameters
* **Dynamic persona**: per-interview persona parameters captured at launch
* **Location**: country, region, city (from IP)
* **Device**: desktop, mobile, tablet
* **Locale**: the participant's language

See [Customize metadata](/guides/customize-metadata) to set up the custom fields you pass in.

## What's next

<CardGroup cols={2}>
  <Card title="Customize outreach" icon="pencil" href="/guides/customize-outreach">
    Write the first message participants see.
  </Card>

  <Card title="Customize metadata" icon="tag" href="/guides/customize-metadata">
    Track attributes via URL parameters.
  </Card>

  <Card title="Review interviews" icon="eye" href="/guides/review-interviews">
    Navigate and read your interviews.
  </Card>

  <Card title="How insights work" icon="chart-pie" href="/concepts/insights">
    See how interviews become insights.
  </Card>
</CardGroup>