import type { ChatMessage } from "../types.js";
import { AGENT_INSTRUCTIONS_PREFIX } from "../instructions/load.js";
import { ACTIVE_SKILLS_PREFIX } from "../skills/catalog.js";
export { AGENT_INSTRUCTIONS_PREFIX, ACTIVE_SKILLS_PREFIX };
export declare function upsertKeyed(messages: ChatMessage[], prefix: string, content: string | undefined): void;
export declare function isAgentInstructionsMessage(content: string): boolean;
export declare function isActiveSkillsMessage(content: string): boolean;
export declare function isClearedKeyedBlock(content: string): boolean;
export declare function isKeyedBlockMessage(content: string, prefix: string): boolean;
export declare function latestKeyedBlock(messages: readonly {
    role: string;
    content: string;
}[], prefix: string): string | undefined;
export declare function upsertAgentInstructionsMessage(messages: ChatMessage[], block: string | undefined): void;
export declare function upsertActiveSkillsMessage(messages: ChatMessage[], block: string | undefined): void;