/**
 * Config G2 — optional validation rule registry (additive diagnostics).
 *
 * Does not change language severities. Rules are off by default; when set to
 * `warn` / `error`, emit CONFIG_VALIDATION_RULE_* diagnostics for CI gates.
 * `requireDescriptions` remains deferred (no entity/command description on IR).
 */
import type { IR } from './ir.js';
export declare const VALIDATION_RULE_IDS: readonly ["missing-policy", "unused-entity", "orphan-relationship"];
export type ValidationRuleId = (typeof VALIDATION_RULE_IDS)[number];
export type ValidationRuleSeverity = 'off' | 'warn' | 'error';
export type ValidationRulesConfig = Partial<Record<ValidationRuleId, ValidationRuleSeverity>>;
export interface ValidationRuleDiagnostic {
    severity: 'warning' | 'error';
    code: string;
    message: string;
    entity?: string;
}
export declare function isValidationRuleSeverity(value: unknown): value is ValidationRuleSeverity;
export declare function resolveValidationRules(raw: ValidationRulesConfig | undefined): Record<ValidationRuleId, ValidationRuleSeverity>;
/** Run configured G2 rules against compiled IR. */
export declare function runValidationRules(ir: IR, rawRules: ValidationRulesConfig | undefined): ValidationRuleDiagnostic[];
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