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

# Reference

> Complete reference documentation for NQL syntax, UI components, and terminology

Reference documentation provides detailed, accurate information for looking things up. Use this section when you need specifics about syntax, available functions, or UI components.

## NQL Reference

Complete documentation for Narrative Query Language is available in the dedicated NQL tab.

<Card title="NQL Reference" icon="terminal" href="/nql/index">
  SQL commands, data types, functions, operators, and general reference
</Card>

## Workflow Reference

<CardGroup cols={2}>
  <Card title="Specification Syntax" icon="list-check" href="/reference/workflows/specification-syntax">
    YAML specification format and supported tasks
  </Card>

  <Card title="Task Reference" icon="rectangle-terminal" href="/reference/workflows/tasks">
    Supported tasks and their parameters
  </Card>
</CardGroup>

## Webhook Reference

<CardGroup cols={2}>
  <Card title="Webhook Event Reference" icon="list-check" href="/reference/webhooks/event-reference">
    Subscription fields, event payloads, and supported enum values
  </Card>
</CardGroup>

## Architecture Reference

<CardGroup cols={2}>
  <Card title="Job Types" icon="list-check" href="/reference/architecture/job-types">
    Job types coordinated between control plane and data planes
  </Card>

  <Card title="Dataset Statistics" icon="chart-column" href="/reference/architecture/dataset-statistics">
    Statistics reference, configuration schema, and validation errors
  </Card>
</CardGroup>

## Security Reference

<Card title="Permissions" icon="lock-keyhole" href="/reference/security/permissions">
  All API key permission resources and their available access levels
</Card>

## Integrations

<Card title="Data Collection Endpoint" icon="cloud-arrow-up" href="/reference/integrations/data-collection-endpoint">
  Reference for the HTTPS-based data collection endpoint for identifiers and custom data
</Card>

## Glossary

<Card title="Glossary" icon="book-bookmark" href="/reference/glossary">
  Definitions for terms and concepts used throughout Narrative I/O
</Card>

## Billing

<Card title="Pricing" icon="credit-card" href="/reference/billing/pricing">
  Service fees, pricing models, and usage calculation details
</Card>

## Related resources

<CardGroup cols={2}>
  <Card title="API Reference" icon="code" href="/api-reference">
    Full REST API documentation with endpoints and examples
  </Card>

  <Card title="Concepts" icon="lightbulb" href="/concepts">
    Understand why things work the way they do
  </Card>
</CardGroup>