Struct AgentSession 

pub struct AgentSession {
    pub session_id: String,
    pub agent_id: AgentId,
    pub steps: Vec<ReActStep>,
    pub memory_hits: usize,
    pub graph_lookups: usize,
    pub duration_ms: u64,
    pub checkpoint_errors: Vec<String>,
}

The result of a single agent run.

Fields

session_id: String

Stable unique identifier for this session (UUID v4 string).

agent_id: AgentId

The agent ID used for this session.

steps: Vec<ReActStep>

All ReAct steps executed during the session.

memory_hits: usize

Number of episodic memory retrievals made during the session.

graph_lookups: usize

Number of graph lookups made during the session.

duration_ms: u64

Wall-clock duration of the session in milliseconds.

checkpoint_errors: Vec<String>

Non-fatal errors encountered while saving per-step checkpoints.

Populated only when a persistence backend is configured. A non-empty list means some step snapshots may be missing from storage, but the session itself completed successfully.

Implementations

impl AgentSession

pub fn step_count(&self) -> usize

Return the number of steps in the session.

Each ReActStep in steps carries a step_duration_ms field measuring wall-clock time from inference call to observation for that individual step. Use this to identify slow steps:

for (i, step) in session.steps.iter().enumerate() {
    println!("step {i}: {}ms", step.step_duration_ms);
}

pub fn final_answer(&self) -> Option<String>

Return the final answer text from the last step, if available.

Extracts the content after FINAL_ANSWER in the last step’s action field. Returns None if there are no steps or the last action is not a FINAL_ANSWER.

Trait Implementations

impl Clone for AgentSession

fn clone(&self) -> AgentSession

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AgentSession

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for AgentSession

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for AgentSession

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

where __S: Serializer,

Serialize this value into the given Serde serializer.