> ## 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.

# DeltaElement

This page describes the content elements that can be inserted in operations.

## DeltaElement

<ParamField path="text" type="String">
  Plain text content to insert.
</ParamField>

<ParamField path="visualization" type="Visualization">
  Chart, table, or other data visualization. See [Visualization](/integrations/graphql-api/objects/visualization).
</ParamField>

<ParamField path="expression" type="DataframeExpression">
  Data expression or formula reference.
</ParamField>

<ParamField path="referredMessageId" type="Int">
  Reference to another message by ID.
</ParamField>

<ParamField path="reference" type="Reference">
  Reference to external resources or entities.
</ParamField>

<ParamField path="vizReference" type="VizReference">
  Reference to a visualization element.
</ParamField>

<ParamField path="textArtifact" type="TextArtifact">
  Rich text content with references and metadata. See [TextArtifact](/integrations/graphql-api/objects/text-artifact).
</ParamField>

<ParamField path="toolCalls" type="LLMToolCalls">
  AI function calls made by the assistant. See [LLMToolCalls](/integrations/graphql-api/objects/llm-tool-calls).
</ParamField>

<ParamField path="toolCallResults" type="LLMToolCallResults">
  Results from AI function calls. See [LLMToolCallResults](/integrations/graphql-api/objects/llm-tool-call-results).
</ParamField>

<ParamField path="aiWorkstream" type="AIWorkstream">
  AI workflow information and status. See [AIWorkstream](/integrations/graphql-api/objects/ai-workstream).
</ParamField>

<ParamField path="section" type="Section">
  Content section with title and body. See [Section](/integrations/graphql-api/objects/section).
</ParamField>

## Related operations

<CardGroup cols={2}>
  <Card title="Operation Schema" icon="bagel" href="/integrations/graphql-api/objects/operation">
    Operations containing DeltaElement
  </Card>

  <Card title="Visualization Schema" icon="chart-bar" href="/integrations/graphql-api/objects/visualization">
    Chart and table visualizations
  </Card>

  <Card title="TextArtifact Schema" icon="file-lines" href="/integrations/graphql-api/objects/text-artifact">
    Rich text content with references
  </Card>

  <Card title="LLMToolCalls Schema" icon="gear" href="/integrations/graphql-api/objects/llm-tool-calls">
    AI function calls
  </Card>
</CardGroup>