Enum JsonEvent 

#[non_exhaustive]
pub enum JsonEvent<'a> {
    Boot {
        version: &'a str,
        bare: bool,
        auto: bool,
    },
    Query {
        text: &'a str,
        queue_len: usize,
    },
    ResponseChunk {
        text: &'a str,
    },
    ResponseEnd,
    ToolCall {
        tool: &'a str,
        args: &'a Value,
        id: &'a str,
    },
    ToolResult {
        tool: &'a str,
        id: &'a str,
        output: &'a str,
        is_error: bool,
    },
    Cost {
        input_tokens: u64,
        output_tokens: u64,
        total_usd: f64,
    },
    LoopTick {
        iteration: u64,
        total_ticks: u64,
        prompt_preview: &'a str,
    },
    CommandAck {
        command: &'a str,
        text: &'a str,
    },
    Status {
        message: &'a str,
    },
    Error {
        message: &'a str,
    },
}

Structured event emitted on stdout in --json mode.

All variants are serialized as JSONL with a "event" discriminator field.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Boot

Session boot banner emitted before the first prompt.

Fields

version: &'a str

bare: bool

auto: bool

Query

User input received from stdin.

Fields

text: &'a str

queue_len: usize

ResponseChunk

Streaming assistant text chunk.

Fields

text: &'a str

ResponseEnd

End-of-response marker.

ToolCall

A tool invocation is about to run.

Fields

tool: &'a str

args: &'a Value

id: &'a str

ToolResult

A tool returned a result.

Fields

tool: &'a str

id: &'a str

output: &'a str

is_error: bool

Cost

Token counts and estimated cost summary.

Fields

input_tokens: u64

output_tokens: u64

total_usd: f64

LoopTick

Loop tick notification fired each /loop iteration.

Fields

iteration: u64

total_ticks: u64

prompt_preview: &'a str

CommandAck

Slash command acknowledgement — distinguishes /loop start confirmation from regular assistant output in JSON streams.

Fields

command: &'a str

text: &'a str

Status

General status message (equivalent to spinner text in interactive channels).

Fields

message: &'a str

Error

Terminal error emitted before the process exits.

Fields

message: &'a str

Trait Implementations

impl<'a> Serialize for JsonEvent<'a>

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

where __S: Serializer,

Serialize this value into the given Serde serializer.