/**
 * 0826: Add a Claude Code plugin marketplace via the claude CLI.
 *
 * Delegates to: claude plugin marketplace add --scope <scope> -- <source>
 *
 * Required when installing plugins from a marketplace that hasn't been
 * registered yet — `claude plugin install foo@bar` fails with "Plugin foo
 * not found in marketplace bar" until the marketplace itself is added.
 *
 * Safe to call against an already-registered marketplace: claude prints a
 * "marketplace already exists" message and exits 0.
 *
 * @throws if the claude binary is not found or the add fails (network,
 *   invalid source, etc.). Callers should `try/catch` and surface a
 *   user-friendly error.
 */
export declare function claudePluginMarketplaceAdd(source: string, scope?: "user" | "project"): void;
/**
 * 0826: List Claude Code marketplace names registered with the CLI.
 *
 * Cheap probe used by the install flow to decide whether to call
 * `claudePluginMarketplaceAdd` before `claudePluginInstall`. Returns an
 * empty list (instead of throwing) when claude isn't installed or the
 * subcommand fails — callers fall through to "treat as not registered".
 */
export declare function claudePluginMarketplaceList(): string[];
/**
 * Install a marketplace plugin via the claude CLI.
 *
 * Delegates to: claude plugin install --scope <scope> -- <pluginId>
 *
 * This is the only sanctioned way to add entries to settings.json's
 * enabledPlugins field and populate the plugin cache.
 *
 * @throws if the claude binary is not found or the install fails
 */
export declare function claudePluginInstall(pluginId: string, scope?: "user" | "project" | "local", opts?: {
    cwd?: string;
}): void;
/**
 * Uninstall a marketplace plugin via the claude CLI.
 *
 * Delegates to: claude plugin uninstall --scope <scope> -- <pluginId>
 *
 * This is the only sanctioned way to remove entries from settings.json's
 * enabledPlugins field and the associated plugin cache.
 *
 * **Note**: `scope: "project"` operates on the project in `process.cwd()`.
 * Callers must ensure they are in the correct working directory, or pass
 * a `cwd` option to override.
 *
 * @throws if the claude binary is not found — callers should wrap in try/catch
 *         when the plugin may not have been installed via the claude CLI
 */
export declare function claudePluginUninstall(pluginId: string, scope?: "user" | "project" | "local", opts?: {
    cwd?: string;
}): void;
/**
 * Detect and uninstall stale plugins from both user and project scopes.
 *
 * Combines `purgeStalePlugins()` (read-only detection) with
 * `claudePluginUninstall()` (CLI-delegated removal) in a single call.
 *
 * @returns Array of `{ id, scope, ok }` for each stale plugin processed
 */
export declare function uninstallStalePlugins(lockfileSkills: Record<string, {
    marketplace?: string;
}>, opts?: {
    log?: (msg: string) => void;
}): Array<{
    id: string;
    scope: "user" | "project";
    ok: boolean;
}>;