Silo

Interface: AgentSessionUsage ​

Defined in: packages/sdk/src/agents-service.ts:779

Beta

Session context/cost state from a usage_update — the protocol's own used / size naming. Sender-optional: many agents never emit this, and those that do report used and size differently (recon), so a missing AgentSessionUpdate.usage on a given update is normal, not an error — never synthesize a reading when the agent hasn't sent one.

Properties ​

used ​

ts
readonly used: number;

Defined in: packages/sdk/src/agents-service.ts:781

Beta

Tokens currently consumed in the session context.

size ​

ts
readonly size: number;

Defined in: packages/sdk/src/agents-service.ts:783

Beta

Total token capacity for the session.

cost? ​

ts
readonly optional cost?: object;

Defined in: packages/sdk/src/agents-service.ts:785

Beta

Cumulative session cost, when the agent reports one.

amount ​

ts
readonly amount: number;

currency ​

ts
readonly currency: string;

ISO 4217 currency code, e.g. "USD".