/**
 * 診断レベル
 *
 * Policy (fixed):
 * - error: implementation impossible (CI/CD should fail)
 * - info : state / progress visibility (always on)
 */
export type DiagnosticLevel = 'error' | 'info';
/**
 * 診断コード一覧
 */
export type DiagnosticCode = 'OPENAPI_NOT_FOUND' | 'OPENAPI_INVALID' | 'OPENAPI_MISSING_OPERATION_ID' | 'OPENAPI_DUPLICATE_OPERATION_ID' | 'OPENAPI_RESPONSE_SCHEMA_UNRESOLVED' | 'L4_INVALID_SELECT_ROOT' | 'L2_INVALID' | 'L2_SCHEMA_NOT_FOUND' | 'L2_DUPLICATE_SCREEN_ID' | 'L2_DUPLICATE_TRANSITION_ID' | 'L2_INVALID_TRANSITION_FROM' | 'L2_INVALID_TRANSITION_TO' | 'L2_TRANSITION_UNUSED' | 'L3_INVALID' | 'L3_SCHEMA_NOT_FOUND' | 'L3_UNKNOWN_SCREEN' | 'L3_UNKNOWN_TRANSITION' | 'L4_INVALID' | 'L4_SCHEMA_NOT_FOUND' | 'L4_UNKNOWN_SCREEN' | 'L4_UNKNOWN_OPERATION_ID' | 'L4_UNUSED_OPERATION_ID' | 'L4_NO_FILES' | 'L3_ACTION_NOT_IN_L2' | 'L2_TRANSITION_NOT_IN_L4' | 'L4_UNKNOWN_QUERY' | 'L4_UNKNOWN_MUTATION' | 'I18N_MISSING_KEY' | 'I18N_UNTRANSLATED';
/**
 * 構造化診断情報
 */
export type Diagnostic = {
    /** 診断コード */
    code: DiagnosticCode;
    /** 診断レベル */
    level: DiagnosticLevel;
    /** 人間が読めるメッセージ */
    message: string;
    /** 追加のメタデータ */
    meta?: Record<string, unknown>;
};
export type HasDiagnostics = {
    diagnostics: Diagnostic[];
};
export declare function errorsOf(r: HasDiagnostics): Diagnostic[];
export declare function infosOf(r: HasDiagnostics): Diagnostic[];
/**
 * Backward compatible helper.
 * - warnings are not used by policy, so this always returns [].
 */
export declare function warningsOf(_: HasDiagnostics): Diagnostic[];
export declare function findByCode<T extends HasDiagnostics>(r: T, code: DiagnosticCode): Diagnostic | undefined;
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