/**
 * Validate the project directory argument before template resolution.
 *
 * @param projectInput Raw project directory input from the CLI.
 * @throws Error when the input is empty or points at the current/parent directory.
 */
export declare function validateCreateProjectInput(projectInput: string): void;
/**
 * Collect warnings for project directory names that are awkward in shells.
 *
 * @param projectDir Absolute target project directory.
 * @returns User-facing warning messages for non-fatal directory concerns.
 */
export declare function collectProjectDirectoryWarnings(projectDir: string): string[];
/**
 * Determine whether a template should resolve persistence-related options.
 *
 * @param templateId Resolved template id.
 * @param options Explicit persistence flags provided by the caller.
 * @returns True when persistence defaults or prompts should be applied.
 */
export declare function templateUsesPersistenceSettings(templateId: string, options: {
    dataStorageMode?: string;
    persistencePolicy?: string;
}): boolean;
/**
 * Collect warnings for flags that do not apply to the selected template.
 *
 * @param options Template id and raw CLI flags that may be ignored.
 * @returns User-facing warnings for non-fatal capability mismatches.
 */
export declare function collectTemplateCapabilityWarnings(options: {
    queryPostType?: string;
    templateId: string;
    withMigrationUi?: boolean;
}): string[];
/**
 * Validate create flags that depend on the selected template capability set.
 *
 * @param options Raw create flags plus the resolved template id.
 * @throws Error when a flag is unsupported for the selected template.
 */
export declare function validateCreateFlagContract(options: {
    alternateRenderTargets?: string;
    dataStorageMode?: string;
    innerBlocksPreset?: string;
    persistencePolicy?: string;
    templateId: string;
    variant?: string;
}): void;
/**
 * Resolve an optional string selection from explicit input, prompts, or defaults.
 *
 * @param options Selection configuration including allowed values and prompt hooks.
 * @returns The resolved value, or undefined when resolution is disabled.
 * @throws Error when an explicit value is not in the allowed set.
 */
export declare function resolveOptionalSelection<T extends string>({ defaultValue, explicitValue, isInteractive, isValue, label, allowedValues, select, shouldResolve, yes }: {
    defaultValue: T;
    explicitValue?: string;
    isInteractive: boolean;
    isValue: (input: string) => input is T;
    label: string;
    allowedValues: readonly T[];
    select?: () => Promise<T>;
    shouldResolve?: boolean;
    yes: boolean;
}): Promise<T | undefined>;
/**
 * Resolve an optional boolean flag from explicit input, prompts, or defaults.
 *
 * @param options Boolean selection configuration and optional prompt hook.
 * @returns The resolved boolean value.
 */
export declare function resolveOptionalBooleanFlag({ defaultValue, disabled, explicitValue, isInteractive, select, yes }: {
    defaultValue?: boolean;
    disabled?: boolean;
    explicitValue?: boolean;
    isInteractive: boolean;
    select?: () => Promise<boolean>;
    yes: boolean;
}): Promise<boolean>;