/**
 * Shared entry-point resolution for plugin directories and openclaw extensions.
 *
 * Both the plugin loader and the extension discovery module need to resolve
 * the JavaScript/TypeScript entry point for a directory-based plugin.
 * This module provides a single canonical implementation.
 *
 * @module
 */
/**
 * Resolve the entry-point file for a plugin or extension directory.
 *
 * Resolution order:
 * 1. `package.json` → `openclaw.extensions[0]` (openclaw-specific manifest field)
 * 2. Conventional candidates: `index.ts`, `index.js`, `index.mts`, `index.mjs`,
 *    `src/index.ts`, `src/index.js`
 *
 * @param dir - Absolute path to the plugin/extension directory.
 * @returns Absolute path to the entry-point file, or `null` if none is found.
 */
export declare function resolvePluginEntry(dir: string): string | null;
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