import { Context, Effect } from "effect";
import { LanguageModel } from "effect/unstable/ai";
import type { EventPayload, ModelCallPurpose } from "./model-telemetry.js";
/** @experimental The active loop's model-call telemetry seam. */
export interface Instrumentation {
    readonly emit: (event: EventPayload) => Effect.Effect<void>;
    readonly wrap: (model: LanguageModel.Service) => LanguageModel.Service;
}
/** @experimental The instrumentation of the enclosing agent run, when present. */
export declare const CurrentInstrumentation: Context.Reference<Instrumentation | undefined>;
/** @experimental Purpose stamped onto model calls issued within the current region. */
export declare const CurrentPurpose: Context.Reference<ModelCallPurpose>;
/** @experimental Compaction pass identifier stamped onto model calls it issues. */
export declare const CurrentCompactionId: Context.Reference<string | undefined>;
/** @experimental Mutable cell recording the model call a compaction pass issued for its summary. */
export interface SummaryCallCell {
    current: string | undefined;
}
/** @experimental Cell a compaction pass provides to learn its summary model-call id. */
export declare const CurrentSummaryCall: Context.Reference<SummaryCallCell | undefined>;