import type { SeedSource, TemplateVariableContext } from './template-source-contracts.js';
/**
 * Candidate filenames for official external template config entrypoints.
 */
export declare const EXTERNAL_TEMPLATE_ENTRY_CANDIDATES: readonly ['index.js', 'index.cjs', 'index.mjs'];
export declare const EXTERNAL_TEMPLATE_TRUST_WARNING = "External template configs execute trusted JavaScript during scaffolding. Review the template source before using local paths, GitHub repos, or npm packages you do not already trust.";
/**
 * Search a source directory for the first supported external template entry.
 *
 * @deprecated Since 0.22.10. Use `findExternalTemplateEntry()` from async
 * template-source paths. Removal target: not currently scheduled; this sync
 * compatibility helper remains available until release notes announce a
 * versioned target.
 *
 * @param sourceDir Directory that may contain an external template config entry.
 * @returns The first matching entry path, or null when no supported entry exists.
 */
export declare function getExternalTemplateEntry(sourceDir: string): string | null;
/**
 * Search a source directory for a supported external template entry asynchronously.
 *
 * @param sourceDir Directory that may contain an external template config entry.
 * @returns The first matching entry path, or null when no supported entry exists.
 */
export declare function findExternalTemplateEntry(sourceDir: string): Promise<string | null>;
/**
 * Load an official external template config and render its seed.
 *
 * @param sourceDir Source directory that contains the external template config.
 * @param context Template render context used for the selected variant.
 * @param requestedVariant Optional explicit variant override.
 * @returns A rendered temporary seed directory with optional assets and cleanup.
 */
export declare function renderCreateBlockExternalTemplate(sourceDir: string, context: TemplateVariableContext, requestedVariant?: string): Promise<SeedSource>;