Enum ContentBlock 

pub enum ContentBlock {
    Text {
        text: String,
        cache_control: Option<CacheControl>,
    },
    ImageUrl {
        image_url: ImageUrlContent,
    },
    Thinking {
        thinking: String,
        signature: Option<String>,
        state: Option<OpaqueReasoningState>,
    },
    ToolUse {
        id: String,
        name: String,
        input: Value,
        caller: Option<ToolCaller>,
        thought_signature: Option<String>,
    },
    ToolResult {
        tool_use_id: String,
        content: String,
        is_error: Option<bool>,
        content_blocks: Option<Vec<Value>>,
    },
    ServerToolUse {
        id: String,
        name: String,
        input: Value,
    },
    ToolSearchToolResult {
        tool_use_id: String,
        content: Value,
    },
    CodeExecutionToolResult {
        tool_use_id: String,
        content: Value,
    },
}

A single content block inside a message.

Variants

Text

Fields

text: String

cache_control: Option<CacheControl>

ImageUrl

Fields

image_url: ImageUrlContent

Thinking

Fields

thinking: String

signature: Option<String>

Anthropic signed-thinking signature (#3014). Only populated on the native Messages dialect and serde-skipped when absent so OpenAI dialects are unaffected. Anthropic rejects tool loops that drop or modify signed thinking blocks, so replay this verbatim.

state: Option<OpaqueReasoningState>

Opaque Responses-style continuity. Never synthesize this from the readable thinking text or carry it across a route/model switch.

ToolUse

Fields

id: String

name: String

input: Value

caller: Option<ToolCaller>

thought_signature: Option<String>

Google thought signature captured from the OpenAI-compat route’s extra_content.google.thought_signature on the tool call. Google requires replaying it with the tool result for thinking models; skipped on the wire and in storage for every other provider.

ToolResult

Fields

tool_use_id: String

content: String

is_error: Option<bool>

content_blocks: Option<Vec<Value>>

ServerToolUse

Fields

id: String

name: String

input: Value

ToolSearchToolResult

Fields

tool_use_id: String

content: Value

CodeExecutionToolResult

Fields

tool_use_id: String

content: Value

Implementations

impl ContentBlock

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

Build readable reasoning with no provider-owned continuity state.

Trait Implementations

impl Clone for ContentBlock

fn clone(&self) -> ContentBlock

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ContentBlock

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ContentBlock

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for ContentBlock

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for ContentBlock

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 ContentBlock