/**
 * API Ninjas Trivia Skill - Fetches trivia questions from the API Ninjas service.
 *
 * Tier 2 built-in skill: requires API_NINJAS_KEY environment variable.
 * Uses the API Ninjas Trivia endpoint to retrieve random trivia questions
 * with optional category filtering.
 */
import { SkillBase } from '../SkillBase.js';
import type { SkillToolDefinition, SkillPromptSection, SkillConfig, ParameterSchemaEntry } from '../SkillBase.js';
/**
 * Fetches trivia questions from the API Ninjas service.
 *
 * Tier 2 built-in skill. Requires the `API_NINJAS_KEY` environment variable.
 * Supports optional `default_category` and `reveal_answer` config options.
 *
 * @example
 * ```ts
 * agent.addSkill('api_ninjas_trivia', { default_category: 'sciencenature' });
 * ```
 */
export declare class ApiNinjasTriviaSkill extends SkillBase {
    static SKILL_NAME: string;
    static SKILL_DESCRIPTION: string;
    static REQUIRED_ENV_VARS: readonly string[];
    static SUPPORTS_MULTIPLE_INSTANCES: boolean;
    static getParameterSchema(): Record<string, ParameterSchemaEntry>;
    /**
     * Produce a compound instance key matching Python `get_instance_key`
     * (skill.py:139-146): `f"{SKILL_NAME}_{self.tool_name}"` with
     * `tool_name` defaulting to `'get_trivia'` (skill.py:95). The base
     * `SkillBase.getInstanceKey` uses `this.skillName` as the fallback,
     * so we override to match Python's `'get_trivia'` default.
     */
    getInstanceKey(): string;
    /** @returns A single trivia tool (configurable name) that fetches a random trivia question with optional category. */
    getTools(): SkillToolDefinition[];
    /** @returns Prompt section describing trivia capabilities and quiz behavior. */
    protected _getPromptSections(): SkillPromptSection[];
    /** @returns Speech recognition hints for trivia-related keywords. */
    getHints(): string[];
}
/**
 * Factory function for creating ApiNinjasTriviaSkill instances.
 * @param config - Optional skill configuration.
 * @returns A new ApiNinjasTriviaSkill instance.
 */
export declare function createSkill(config?: SkillConfig): ApiNinjasTriviaSkill;