AgentSnapshot<State> class final

A generate-style, typed veneer over a raw SessionSnapshot. Mirrors how AgentResponse wraps an AgentOutput: it delegates the snapshot's scalar fields and surfaces the aggregates (messages, artifacts) and the typed custom state (custom), while keeping the untyped wire objects reachable via sessionState / raw.

Because SessionSnapshot is a generated schemantic type it cannot carry a State type parameter itself; this wrapper provides it by composition.

Constructors

AgentSnapshot.forTesting(SessionSnapshot raw): Test-only constructor for building a snapshot wrapper directly from a raw SessionSnapshot, bypassing a transport read.

artifacts → List<Artifact>: The artifacts carried by this snapshot's session state.
no setter
createdAt → String: no setter
custom → State?: The typed custom state, cast/parsed via the optional schema. null when the snapshot carries no custom state.
no setter
error → AgentErrorInfo?: no setter
finishReason → AgentFinishReason?: no setter
hashCode → int: The hash code for this object.
no setterinherited
heartbeatAt → String?: no setter
messages → List<Message>: The message history carried by this snapshot's session state.
no setter
parentId → String?: no setter
raw → SessionSnapshot: The underlying raw SessionSnapshot.
no setter
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
sessionId → String?: Stable identifier correlating snapshots/turns of this conversation.
no setter
sessionState → SessionState?: The raw session state (with untyped custom), if you need it.
no setter
snapshotId → String: no setter
status → SnapshotStatus?: no setter
updatedAt → String?: no setter

noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
toString() → String: A string representation of this object.
inherited