Enum Part 

pub enum Part {
    Text(TextPart),
    Media(MediaPart),
    File(FilePart),
    Structured(StructuredPart),
    Reasoning(ReasoningPart),
    ToolCall(ToolCallPart),
    ToolResult(ToolResultPart),
    Custom(CustomPart),
}

A content part within an Item.

Items are composed of one or more parts, each carrying a different kind of content – plain text, images, files, tool calls, tool results, or provider-specific custom payloads.

Example

use agentkit_core::{Part, ToolCallPart};
use serde_json::json;

let parts: Vec<Part> = vec![
    Part::text("Reading the config file..."),
    Part::ToolCall(ToolCallPart::new(
        "call-42",
        "fs.read_file",
        json!({ "path": "config.toml" }),
    )),
];

assert!(matches!(parts[0], Part::Text(_)));
assert!(matches!(parts[1], Part::ToolCall(_)));

Variants

Text(TextPart)

Plain text content.

Media(MediaPart)

Binary or encoded media (images, audio, video).

File(FilePart)

A file attachment.

Structured(StructuredPart)

Structured JSON data, optionally validated against a schema.

Reasoning(ReasoningPart)

Model reasoning / chain-of-thought output.

ToolCall(ToolCallPart)

A tool invocation request emitted by the model.

ToolResult(ToolResultPart)

The result returned by a tool after execution.

Custom(CustomPart)

A provider-specific part that does not fit the standard variants.

Implementations

impl Part

pub fn text(text: impl Into<String>) -> Self

Builds a text part.

pub fn media( modality: Modality, mime_type: impl Into<String>, data: DataRef, ) -> Self

Builds a media part.

pub fn file(data: DataRef) -> Self

Builds a file part.

pub fn structured(value: Value) -> Self

Builds a structured part.

pub fn reasoning(summary: impl Into<String>) -> Self

Builds a reasoning-summary part.

Trait Implementations

impl Clone for Part

fn clone(&self) -> Part

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Part

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Part

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Part

fn eq(&self, other: &Part) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Part

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Part