Struct ContextSnapshot 

pub struct ContextSnapshot {
    pub system_tokens: usize,
    pub sent_tokens: usize,
    pub tool_defs_tokens: usize,
    pub cold_zone_tokens: usize,
    pub total_messages: usize,
    pub ctx_window: usize,
    pub ctx_name: String,
    pub system_prompt: String,
}

Snapshot of the agent’s context budget, cached from AgentEvent::ContextStats and surfaced by the /context command.

Merged across two emission paths: the narrow TurnEvent-forwarded one (system/sent/total_messages) and the rich one from handle_send_message (tool_defs / cold_zone / ctx_window / ctx_name). Each path leaves the fields it doesn’t know at 0 / empty, so we merge by keeping non-zero updates. See UiState::on_context_stats.

Fields

system_tokens: usize

sent_tokens: usize

tool_defs_tokens: usize

cold_zone_tokens: usize

total_messages: usize

ctx_window: usize

ctx_name: String

system_prompt: String

Full assembled system prompt from the most recent turn. Surfaced by /context prompt. Empty until the first rich emission lands.

Trait Implementations

impl Clone for ContextSnapshot

fn clone(&self) -> ContextSnapshot

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ContextSnapshot

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

Formats the value using the given formatter.

impl Default for ContextSnapshot

fn default() -> ContextSnapshot

Returns the “default value” for a type.