Struct UsageBreakdown 

pub struct UsageBreakdown {
    pub system_prompt_tokens: u64,
    pub skills_tokens: u64,
    pub tool_calls_input_tokens: u64,
    pub tool_calls_output_tokens: u64,
    pub user_messages_tokens: u64,
    pub model_output_tokens: u64,
}

The session’s token usage, split by what it bought. The five input categories share each request’s reported input tokens in proportion to their wire bytes (tool definitions ride with the calls that use them); the model’s generated output tokens all land on model_output_tokens, which also carries the assistant text the history re-sends. The compaction block travels as a user message and counts there.

Fields

system_prompt_tokens: u64

The system prompt minus its skills section.

skills_tokens: u64

The skills section of the system prompt, when the agent could isolate it at render time; zero otherwise.

tool_calls_input_tokens: u64

Tool definitions plus the tool-call arguments re-sent in assistant messages.

tool_calls_output_tokens: u64

Tool results — the tools’ output, re-sent as input.

user_messages_tokens: u64

User text, the compaction block included.

model_output_tokens: u64

The model’s words: assistant text in the history plus every generated output token.

Implementations

impl UsageBreakdown

pub fn labeled(&self) -> [(&'static str, u64); 6]

The six categories, labeled as the Usage page spells them.

pub fn total(&self) -> u64

The grand total the percentages read against.

Trait Implementations

impl Clone for UsageBreakdown

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for UsageBreakdown

impl Debug for UsageBreakdown

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

Formats the value using the given formatter.

impl Default for UsageBreakdown

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for UsageBreakdown

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for UsageBreakdown

impl PartialEq for UsageBreakdown

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for UsageBreakdown

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 UsageBreakdown