Struct SessionModelChangeData 

pub struct SessionModelChangeData {
    pub cause: Option<String>,
    pub context_tier: Option<ContextTier>,
    pub new_model: String,
    pub previous_model: Option<String>,
    pub previous_reasoning_effort: Option<String>,
    pub previous_reasoning_summary: Option<ReasoningSummary>,
    pub previous_verbosity: Option<Verbosity>,
    pub reasoning_effort: Option<String>,
    pub reasoning_summary: Option<ReasoningSummary>,
    pub verbosity: Option<Verbosity>,
}

Session event “session.model_change”. Model change details including previous and new model identifiers

Fields

cause: Option<String>

Reason the change happened, when not user-initiated. Currently "rate_limit_auto_switch" for changes triggered by the auto-mode-switch rate-limit recovery path. UI clients can use this to render contextual copy.

context_tier: Option<ContextTier>

Context tier after the model change; null explicitly clears a previously selected tier

new_model: String

Newly selected model identifier

previous_model: Option<String>

Model that was previously selected, if any

previous_reasoning_effort: Option<String>

Reasoning effort level before the model change, if applicable

previous_reasoning_summary: Option<ReasoningSummary>

Reasoning summary mode before the model change, if applicable

previous_verbosity: Option<Verbosity>

Output verbosity level before the model change, if applicable

reasoning_effort: Option<String>

Reasoning effort level after the model change, if applicable

reasoning_summary: Option<ReasoningSummary>

Reasoning summary mode after the model change, if applicable

verbosity: Option<Verbosity>

Output verbosity level after the model change, if applicable

Trait Implementations

impl Clone for SessionModelChangeData

fn clone(&self) -> SessionModelChangeData

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SessionModelChangeData

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

Formats the value using the given formatter.

impl Default for SessionModelChangeData

fn default() -> SessionModelChangeData

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for SessionModelChangeData

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for SessionModelChangeData

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

where __S: Serializer,

Serialize this value into the given Serde serializer.