import type { RuntimeEventLike } from "@mono-agent/observability";
import type { BuiltAgentContext, ContextBlockInput, HistoryMessage, SkillIndexSummary } from "../context/index.js";
import type { AgentHarnessOptions, AgentHarnessRequest } from "../types.js";
import type { SkillsCache } from "../skills/index.js";
export declare function prepareHarnessContext(options: AgentHarnessOptions, skillsCache: SkillsCache, request: AgentHarnessRequest, contextOptions: {
    readonly historyMode: "messages" | "omitted";
    readonly turnId: string;
    /** Canonical history captured under the store's conversation lease. */
    readonly historyOverride?: readonly HistoryMessage[];
}, emit?: (event: RuntimeEventLike) => void): Promise<{
    readonly context: BuiltAgentContext;
    readonly memory: ContextBlockInput | undefined;
    readonly skillDisclosureEntries: readonly SkillIndexSummary[];
    readonly history: readonly HistoryMessage[];
    readonly historyOmitted: boolean;
    readonly historyAsMessages: boolean;
    readonly toolHistoryProjection: string | undefined;
}>;
export declare function loadHarnessHistory(options: AgentHarnessOptions, conversationId: string, continuation?: AgentHarnessRequest["continuation"]): Promise<readonly HistoryMessage[]>;
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