Struct SessionSummary 

pub struct SessionSummary {

    pub harness: Option<Harness>,
    pub session_id: Option<String>,
    pub subagent: Option<SubagentInfo>,
    pub cwd: Option<PathBuf>,
    pub model: Option<String>,
    pub harness_version: Option<String>,
    pub usage: TokenUsage,
    pub cost_usd: f64,
    pub cost_breakdown: CostBreakdown,
    pub price_source: Option<PriceSource>,
    pub unpriced_tokens: u64,
    pub turns: u64,
    pub subagent_turns: u64,
    pub folds_child_usage: bool,
    pub tool_calls: u64,
    pub tool_calls_lower_bound: bool,
    pub web_searches: u64,
    pub spans: SpanLog,
    pub mcp: BTreeMap<String, McpUsage>,
    pub context: ContextLedger,
    pub health: ParseHealth,
    pub activity: Activity,
    pub started_at: Option<SystemTime>,
    pub last_activity: Option<SystemTime>,
    pub rate_limit: Option<RateLimit>,
    pub harness_cost: Option<HarnessCost>,
}

Fields

harness: Option<Harness>

session_id: Option<String>

subagent: Option<SubagentInfo>

Logical subagent metadata from the transcript, never from process ancestry.

cwd: Option<PathBuf>

model: Option<String>

harness_version: Option<String>

usage: TokenUsage

cost_usd: f64

cost_breakdown: CostBreakdown

cost_usd by kind of token. See Agent::cost_breakdown.

price_source: Option<PriceSource>

Set when the harness records its own costs instead of using our table.

unpriced_tokens: u64

turns: u64

subagent_turns: u64

folds_child_usage: bool

Child sessions are counted in this row’s own totals, so the subagent share of them is worth breaking out. A harness that gives each child a row of its own leaves this false: nothing was folded in to separate.

tool_calls: u64

tool_calls_lower_bound: bool

Earlier calls may have been removed from the harness’s retained history.

web_searches: u64

See Agent::web_searches.

spans: SpanLog

mcp: BTreeMap<String, McpUsage>

Calls to each MCP server, by the server’s name.

context: ContextLedger

What each tool’s results added to the prompt, and what carrying it has cost. See ContextLedger.

health: ParseHealth

activity: Activity

started_at: Option<SystemTime>

last_activity: Option<SystemTime>

rate_limit: Option<RateLimit>

How close the session is to its rate limit, when the harness writes it.

harness_cost: Option<HarnessCost>

The harness’s own cost figure, when it writes one. See HarnessCost.

Trait Implementations

impl Clone for SessionSummary

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SessionSummary

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

Formats the value using the given formatter.

impl Default for SessionSummary

fn default() -> Self

Returns the “default value” for a type.