/**
 * DateTime Skill - Provides current date/time with optional timezone support.
 *
 * Tier 1 built-in skill: no external dependencies required.
 */
import { SkillBase } from '../SkillBase.js';
import type { SkillToolDefinition, SkillPromptSection, SkillConfig, ParameterSchemaEntry } from '../SkillBase.js';
/**
 * Provides the current date and time with optional timezone support.
 *
 * Tier 1 built-in skill with no external dependencies. Supports all IANA
 * timezone identifiers via the Intl.DateTimeFormat API.
 *
 * Registers two SWAIG tools: `get_current_time` and `get_current_date`.
 *
 * @example
 * ```ts
 * agent.addSkill('datetime');
 * ```
 */
export declare class DateTimeSkill extends SkillBase {
    static SKILL_NAME: string;
    static SKILL_DESCRIPTION: string;
    static SKILL_VERSION: string;
    static REQUIRED_PACKAGES: readonly string[];
    static REQUIRED_ENV_VARS: readonly string[];
    static getParameterSchema(): Record<string, ParameterSchemaEntry>;
    /**
     * @returns Two tools: `get_current_time` and `get_current_date`, each
     *   accepting an optional IANA timezone and defaulting to UTC.
     */
    getTools(): SkillToolDefinition[];
    protected _getPromptSections(): SkillPromptSection[];
}
/**
 * Factory function for creating DateTimeSkill instances.
 * @param config - Optional skill configuration.
 * @returns A new DateTimeSkill instance.
 */
export declare function createSkill(config?: SkillConfig): DateTimeSkill;