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

# What FullReach AI measures

> How a brand's presence in AI answers is counted, and where each number comes from.

FullReach AI puts a project's prompts to the AI platforms on a schedule and keeps every answer. It counts every number it reports from those stored answers. This manual says how.

## The unit: an answer

An answer is what one platform returned to one prompt in one market on one day. Every metric is a count over answers, or over the brand mentions found inside them.

## The four headline numbers

<CardGroup cols={2}>
  <Card title="Visibility" icon="eye" href="/reference/metrics/visibility">
    The share of analysed answers that name this brand.
  </Card>

  <Card title="Share of voice" icon="chart-pie" href="/reference/metrics/share-of-voice">
    This brand's mentions against the mentions of every monitored brand.
  </Card>

  <Card title="Sentiment" icon="face-smile" href="/reference/metrics/sentiment">
    How each mention of this brand is classified: positive, neutral or negative.
  </Card>

  <Card title="Recommendation" icon="thumbs-up" href="/reference/metrics/recommendation">
    Whether an answer recommends this brand, mentions it, or advises against it.
  </Card>
</CardGroup>

## Reference

<CardGroup cols={2}>
  <Card title="Platforms" icon="robot" href="/reference/platforms">
    The AI platforms that FullReach AI collects answers from, and the slug each one carries.
  </Card>

  <Card title="Plan limits" icon="gauge" href="/reference/limits">
    What each tier may run, and the caps every organization shares.
  </Card>

  <Card title="MCP tools" icon="plug" href="/mcp/tools">
    Every tool the MCP server offers to an AI assistant, with what it takes.
  </Card>

  <Card title="MCP prompts" icon="terminal" href="/mcp/prompts">
    The ready-made analyses the server offers as slash commands.
  </Card>
</CardGroup>