Struct TokenUsage 

pub struct TokenUsage {
    pub input_tokens: Option<u64>,
    pub cached_input_tokens: Option<u64>,
    pub cache_write_input_tokens: Option<u64>,
    pub output_tokens: Option<u64>,
    pub reasoning_output_tokens: Option<u64>,
    pub total_tokens: Option<u64>,
}

Token counts reported on a completed turn.

codex-cli 0.145.0 reports token usage and no monetary cost. Converting tokens to dollars needs a per-model price table the CLI does not provide, so this crate does not attempt it: a hardcoded table would go stale silently, which is the same class of bug as #73.

Every field is optional, and absence is normal rather than exceptional: observed runs carry five of the six and never total_tokens, which is why TokenUsage::total falls back to input plus output.

Fields

input_tokens: Option<u64>

Input tokens for the turn.

cached_input_tokens: Option<u64>

Input tokens served from cache.

cache_write_input_tokens: Option<u64>

Input tokens written to cache.

output_tokens: Option<u64>

Output tokens for the turn.

reasoning_output_tokens: Option<u64>

Output tokens spent on reasoning.

total_tokens: Option<u64>

Total tokens, if the CLI ever reports one. Observed runs do not.

Implementations

impl TokenUsage

pub fn total(&self) -> Option<u64>

Best available total for the turn.

Prefers the CLI’s own total_tokens, falls back to input plus output when it is absent, and returns None when neither is reported, so a missing total is never silently counted as zero.

Trait Implementations

impl Clone for TokenUsage

fn clone(&self) -> TokenUsage

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for TokenUsage

impl Debug for TokenUsage

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

Formats the value using the given formatter.

impl Default for TokenUsage

fn default() -> TokenUsage

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for TokenUsage

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for TokenUsage

impl PartialEq for TokenUsage

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for TokenUsage

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 TokenUsage