Function createHistoryWriter

createHistoryWriter(
    handle: string,
    workspace: string,
    provider: "codex" | "claude" | "agy",
    turnId: string,
    options?: {
        abortSignal?: AbortSignal;
        budget?: ExecutionBudget;
        context?: BackendReadContext;
    },
): {
    accept: (event: AdapterEvent) => void;
    disabled: boolean;
    flush: () => Promise<void>;
}
Creates an append-only history writer for an active conversation turn.
Parameters
- handle: string
  Valid session handle.
- workspace: string
  Absolute canonical workspace path.
- provider: "codex" | "claude" | "agy"
  Execution provider ID (e.g. 'codex', 'agy', 'claude').
- turnId: string
  Unique turn UUID for event correlation.
- Optionaloptions: {
      abortSignal?: AbortSignal;
      budget?: ExecutionBudget;
      context?: BackendReadContext;
  }
  Optional context, abort signal, or execution budget (EXEC-001-T09c).
Returns {
    accept: (event: AdapterEvent) => void;
    disabled: boolean;
    flush: () => Promise<void>;
}
Object exposing accept(event), flush(), and disabled.
- Defined in src/sessions/history/writer.ts:50