import type { ChatSystemMessage } from "../../chat/types.js";
import type { AgentCallCacheTtl } from "../runtime/call-context.js";
import type { RuntimeAgentMarkdownDefinition } from "../runtime/agent-definition.js";
import type { HostedChatRuntimeInstructionsInput } from "./chat-preparation.js";
import type { RuntimeSkillDefinition } from "../runtime/skill-metadata.js";
/** Input payload for create Veryfront Cloud runtime system messages. */
export type CreateVeryfrontCloudRuntimeSystemMessagesInput = {
    agent: RuntimeAgentMarkdownDefinition;
    instructions?: string;
    skills?: readonly RuntimeSkillDefinition[];
    projectId?: string | null;
    branchId?: string | null;
    environmentContext?: string;
    /** Prompt-cache TTL for the static (Layer 0) message. Default `"5m"`. */
    cacheTtl?: AgentCallCacheTtl;
};
/** Create Veryfront Cloud runtime system messages. */
export declare function createVeryfrontCloudRuntimeSystemMessages(input: CreateVeryfrontCloudRuntimeSystemMessagesInput): ChatSystemMessage[];
/** Options for building Veryfront Cloud runtime instructions. */
export type BuildVeryfrontCloudRuntimeInstructionsOptions = {
    /**
     * Prompt-cache TTL for the static (Layer 0) message. Set `"1h"` for
     * interactive multi-turn runs, including root chat, steering refresh, and
     * tool-assembly re-rendering, where a second read is likely. Leave the
     * default `"5m"` for one-shot child/eval runs. See RFC 0001.
     */
    cacheTtl?: AgentCallCacheTtl;
};
/** Builds Veryfront Cloud runtime instructions. */
export declare function buildVeryfrontCloudRuntimeInstructions(input: HostedChatRuntimeInstructionsInput<RuntimeAgentMarkdownDefinition>, options?: BuildVeryfrontCloudRuntimeInstructionsOptions): ChatSystemMessage[];
/** Builds runtime instructions for an interactive run with a one-hour cache TTL. */
export declare function buildInteractiveVeryfrontCloudRuntimeInstructions(input: HostedChatRuntimeInstructionsInput<RuntimeAgentMarkdownDefinition>): ChatSystemMessage[];
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