import type { RuntimeEventLike } from "@mono-agent/observability";
import type { ContextBlockInput, HistoryMessage } from "../context/index.js";
/**
 * Appends the recalled-memory block to the user message (after the user's text and
 * any attachment block applyAttachments already merged in), clearly delimited so
 * the model reads it as injected background context rather than the user's words.
 * Returns the message unchanged when there is no memory to inject.
 */
export declare function composeUserMessageWithMemory(userMessage: string, memory: ContextBlockInput | undefined): string;
/**
 * Builds the synthetic `turn_context` event: what context THIS turn was driven
 * with. `historyCount` is the number of loaded prior messages (0 when omitted);
 * `historyOmitted` is true only when a confirmed live warm provider session
 * carries the transcript, so no host history was replayed. A cold durable reopen
 * reports the canonical history it loaded (including an authoritative empty
 * history) because its epoch-owned JSONL may be created on miss. The
 * `history`/`memory` keys are omitted entirely when empty. Each entry is clamped
 * for display, flagging `truncated`. The current user message is deliberately NOT
 * included (it is the run's userInput).
 */
export declare function buildTurnContextEvent(history: readonly HistoryMessage[], historyOmitted: boolean, memory: ContextBlockInput | undefined, speaker?: SpeakerTurnContextFields): RuntimeEventLike;
/**
 * Speaker attribution for the turn. Deliberately asymmetric with `history`: the
 * speaker LABEL is recorded, but preceding messages contribute only counts and a
 * byte size, never their text. Same rationale as the memory diagnostic -- that
 * transcript is third-party chatter the run does not own, so recording it would
 * multiply its retention surface for no debugging value that `precedingRendered
 * < precedingCount` (the "we clipped it" signal) does not already give. The
 * host-only `sender.id` never appears here either.
 */
export interface SpeakerTurnContextFields {
    readonly speaker?: string;
    readonly precedingCount?: number;
    readonly precedingRendered?: number;
    readonly precedingBytes?: number;
}
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