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

# Delta

This page describes the input structure used for message content operations.

## Delta

<ParamField path="ops" type="[Operation!]!" required>
  Array of operations that define the message content. See [Operation](/integrations/graphql-api/objects/operation).
</ParamField>

## Related operations

<CardGroup cols={2}>
  <Card title="Operation Schema" icon="gear" href="/integrations/graphql-api/objects/operation">
    Learn about individual operations
  </Card>

  <Card title="DeltaInput Schema" icon="pen-to-square" href="/integrations/graphql-api/objects/delta-input">
    Input version for sending messages
  </Card>

  <Card title="ChatMessage Schema" icon="message" href="/integrations/graphql-api/objects/chat-message">
    Messages containing Delta content
  </Card>
</CardGroup>