Struct SessionRollup 

#[non_exhaustive]
pub struct SessionRollup {
    pub kind_counts: BTreeMap<String, i32>,
    pub model: String,
    pub model_usage: Vec<ModelUsage>,
    pub preview: String,
    pub status: String,
    pub tasks: Vec<TreeTask>,
    pub title: String,
    pub turn_count: i32,
    pub usage: SessionUsage,
}

The deriver-owned session projection — status, title, counts, and spend, all folded from the span layer at derive time.

Models the contract’s SessionRollup schema.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

kind_counts: BTreeMap<String, i32>

KindCounts (spans per call_kind) and Tasks (TaskCreate/TaskUpdate folds) are pinned so the rollup shape is uniform across sessions.

model: String

The dominant conversation-spine model; ModelUsage is the per- model spend breakdown across every thread (subagent models included), cost- ordered so the UI can show “dominant model + share” without a cheap- subagent fan-out skewing it.

model_usage: Vec<ModelUsage>

The contract’s model_usage.

preview: String

The contract’s preview.

status: String

The contract’s status.

tasks: Vec<TreeTask>

The contract’s tasks.

title: String

The deriver’s folded session title (derived_title), generated from the conversation.

turn_count: i32

The contract’s turn_count.

usage: SessionUsage

The contract’s usage.

Trait Implementations

impl Clone for SessionRollup

fn clone(&self) -> SessionRollup

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl ContractModel for SessionRollup

const SCHEMA: &'static str = "SessionRollup"

The schema’s own name in contracts/tapes-api.yaml.

impl Debug for SessionRollup

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

Formats the value using the given formatter.

impl Default for SessionRollup

fn default() -> SessionRollup

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for SessionRollup

where SessionRollup: Default,

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for SessionRollup

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for SessionRollup

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 SessionRollup