export interface SkillModelConfig {
    provider?: string;
    model: string;
}
export interface SkillFrontmatter {
    name: string;
    description: string;
    version?: string;
    author?: string;
    tags?: string[];
    allowedTools?: string[];
    priority?: number;
    args?: string[];
    model?: SkillModelConfig;
}
export interface Skill {
    name: string;
    description: string;
    version: string;
    author?: string;
    tags: string[];
    allowedTools?: string[];
    priority: number;
    basePath: string;
    source: string;
    frontmatter: SkillFrontmatter;
    filePath: string;
}
export interface SkillMetadata {
    name: string;
    description: string;
    version: string;
    tags: string[];
    allowedTools?: string[];
}
export interface SkillRegistry {
    get(name: string): Skill | undefined;
    getAll(): Skill[];
    getMetadata(): SkillMetadata[];
    getBody(name: string): Promise<string | undefined>;
}
/** Default maximum skill body size in characters (~8k tokens at 4 chars/token). */
export declare const DEFAULT_SKILL_BODY_MAX_CHARS = 32000;
/** Default warning threshold in characters (~2k tokens at 4 chars/token). */
export declare const DEFAULT_SKILL_BODY_WARN_CHARS = 8000;
/**
 * Resolved skill body limits from environment variables.
 * Falls back to defaults if not set or unparsable.
 */
export declare function getSkillBodyLimits(): {
    maxChars: number;
    warnChars: number;
};
/** Result of applying skill body size limits. */
export interface TruncationResult {
    /** The (possibly truncated) body */
    body: string;
    /** Whether truncation was applied */
    truncated: boolean;
    /** Original body size in characters */
    originalChars: number;
    /** Estimated original token count (chars / 4) */
    originalTokenEstimate: number;
    /** Final body size in characters */
    finalChars: number;
    /** Estimated final token count (chars / 4) */
    finalTokenEstimate: number;
}
/**
 * Enforce size limits on a skill body.
 * Truncates with a clear marker if the body exceeds maxChars.
 * Fail-soft: never throws, always returns a usable body.
 */
export declare function limitSkillBody(body: string, maxChars?: number, warnChars?: number): TruncationResult;