Enum ServerMessage 

pub enum ServerMessage {
    Thinking {
        content: String,
    },
    Text {
        content: String,
    },
    ToolUseStart {
        tool_name: String,
    },
    ToolUseDelta(String),
    ToolUse {
        tool_name: String,
        tool_id: String,
        input: Value,
    },
    ToolResult {
        tool_id: String,
        result: String,
    },
    ToolResultDelta {
        tool_id: String,
        delta: String,
    },
    Usage {
        input_tokens: u64,
        output_tokens: u64,
        cache_creation_5m: Option<u64>,
        cache_creation_1h: Option<u64>,
    },
    Done,
    Notice {
        text: String,
    },
    Error {
        message: String,
    },
    System {
        message: String,
    },
    HistoryResponse {
        messages: Vec<HistoryEntry>,
    },
    StatusResponse {
        model: String,
        thinking: String,
        streaming: bool,
        session_id: String,
        total_input_tokens: u64,
        total_output_tokens: u64,
        session_cost: f64,
        connected_clients: usize,
    },
}

Messages sent from server → client

Variants

Thinking

Thinking tokens (streamed incrementally)

Fields

content: String

Text

Text tokens (streamed incrementally)

Fields

content: String

ToolUseStart

A tool is ABOUT to be invoked (streaming JSON args)

Fields

tool_name: String

ToolUseDelta(String)

Streaming chunk of the tool’s JSON arguments

ToolUse

A tool was invoked (JSON finished)

Fields

tool_name: String

tool_id: String

input: Value

ToolResult

Tool execution result

Fields

tool_id: String

result: String

ToolResultDelta

Tool execution incremental delta

Fields

tool_id: String

delta: String

Usage

Token usage update

Fields

input_tokens: u64

output_tokens: u64

cache_creation_5m: Option<u64>

Cache-write TTL split — optional, omitted when unknown.

cache_creation_1h: Option<u64>

Done

Streaming complete for this turn

Notice

Out-of-band advisory notice (e.g. cache-TTL downgrade warning). Additive variant — old clients ignore unknown message types.

Fields

text: String

Error

Error occurred

Fields

message: String

System

System/info message (command responses, status)

Fields

message: String

HistoryResponse

Full conversation history (response to History request)

Fields

messages: Vec<HistoryEntry>

StatusResponse

Server status

Fields

model: String

thinking: String

streaming: bool

session_id: String

total_input_tokens: u64

total_output_tokens: u64

session_cost: f64

connected_clients: usize

Trait Implementations

impl Clone for ServerMessage

fn clone(&self) -> ServerMessage

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ServerMessage

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ServerMessage

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ServerMessage

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

where __S: Serializer,

Serialize this value into the given Serde serializer.