import type { SkillInstallErrorCode } from '../_vendored-contracts/skill-distribution.js';
export interface ExtractError {
    installCode: SkillInstallErrorCode;
    message: string;
}
/**
 * Extract tarball at tmpPath into installDir.
 * Validates that BUNDLE_REQUIRED_ENTRY_FILES are present after extraction.
 * On failure: cleans up installDir, returns error.
 */
export declare function extractBundle(opts: {
    tmpPath: string;
    installDir: string;
}): Promise<void>;
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