/**
 * Extension boundary for decoding Skill document YAML frontmatter.
 *
 * Core owns the Skill document envelope, resource limits, mapping validation,
 * and metadata policy. Implementations own only YAML decoding.
 *
 * @module extensions/parser/skill-document-parser
 */
/** Stable runtime identifier for the Skill document parser contract. */
export declare const SkillDocumentParserProviderName: "SkillDocumentParserProvider";
/** Dependency-free contract implemented by Skill YAML parser extensions. */
export interface SkillDocumentParserProvider {
    /**
     * Decode the YAML source extracted from a Skill document's frontmatter.
     *
     * Implementations must be synchronous and must not create or return Promise
     * values. The returned value is untrusted; core validates and snapshots the
     * required mapping before using it.
     */
    readonly parseFrontmatter: (source: string) => unknown;
}
/**
 * Capture one immutable provider generation without retaining its mutable
 * registration object or invoking extension-owned accessors or Proxy traps.
 */
export declare function snapshotSkillDocumentParserProvider(value: unknown): Readonly<SkillDocumentParserProvider>;
/** Create immutable provider registration metadata from a standalone parser. */
export declare function createSkillDocumentParserProvider(parseFrontmatter: (source: string) => unknown): Readonly<SkillDocumentParserProvider>;
//# sourceMappingURL=skill-document-parser.d.ts.map