FoldItems

The fold’s read-only view of its ItemStore. Every mutation goes through apply(); a directly reachable seed/applyDelta would let a consumer desync the composite view (items cleared, turn/pending maps not), breaking replay equality.

An ALLOWLIST, stated explicitly: TypeScript never checks Omit’s keys against the type, so a renamed or newly added ItemStore mutator would land on this exported surface silently. An explicit member list admits only what is written here, in both drift directions.

Hiding the mutator METHODS is only half the job. The values these accessors return ARE the fold’s stored objects and the generated wire types carry no readonly, so fold.items.get(id).revision = 0 used to typecheck AND stick — defeating the revision guard and breaking replay equality through the read surface the mutator allowlist was supposed to seal. Every accessor therefore returns DeepReadonly.

Properties

Property	Type	Stability	Presence	Description
ephemeralSessionDiscarded	boolean		required
size	number		required

Methods

Method	Signature	Stability	Description
accumulated	accumulated(itemId: string, field?: string): string | undefined
accumulatedFields	accumulatedFields(itemId: string): readonly string[]
get	get(itemId: string): object | undefined
has	has(itemId: string): boolean
isTerminalUnknown	isTerminalUnknown(itemId: string): boolean
lastOpenedItemId	lastOpenedItemId(): string | undefined
list	list(): readonly object[]

Source

clients/sdk-ts/src/fold/session-fold.ts:337

{
  "kind": "Interface",
  "canonicalPath": "FoldItems"
}