/**
 * Plugin activation for the Manifest CLI.
 *
 * Reads plugin declarations from manifest.config, loads them once (memoized),
 * and exposes helpers to register their CLI commands and surface diagnostics.
 *
 * Loading is conditional: a project with no `plugins` declared pays nothing
 * beyond the config read the CLI already performs, so `manifest --help` in a
 * plugin-free project never imports or executes a plugin.
 */
import { type LoadedPluginRegistries } from '@angriff36/manifest/plugin-loader';
/**
 * Load plugins declared in manifest.config (YAML). Returns `null` when none are
 * declared, or all are disabled, so callers can skip every plugin code path.
 */
export declare function loadDeclaredPlugins(manifestVersion: string, cwd?: string): Promise<LoadedPluginRegistries | null>;
/**
 * Print plugin load diagnostics to stderr. Errors and warnings only by default;
 * `info` messages (e.g. "loaded successfully") are shown only when `verbose` is
 * set. Ordering is deterministic — the loader emits in declaration order.
 */
export declare function reportPluginDiagnostics(registries: LoadedPluginRegistries, { verbose }?: {
    verbose?: boolean;
}): void;
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