import { type ComponentSpec, type DeprecationMetadata } from "./componentSchema";
export interface ComponentSchemaArtifact {
    schemaVersion: number;
    authoringContractVersion?: number;
    diagnosticContractVersion?: number;
    components: Record<string, ComponentSpec>;
}
export type ReleaseType = "patch" | "minor" | "major";
export type SchemaChangeKind = "added" | "changed" | "removed";
export interface SchemaChange {
    kind: SchemaChangeKind;
    path: string;
    message: string;
    /**
     * True when the mutation invalidates already-stored authored instances (a removal, a
     * prop retype, a prop becoming required, dropped child acceptance, or a narrowed
     * allowlist). Breaking changes are gated on an expired deprecation window + a
     * structured breakingChange entry, exactly like removals.
     */
    breaking?: boolean;
    deprecation?: DeprecationMetadata;
}
export interface PolicyIssue {
    path: string;
    message: string;
}
export type ReleasePolicyClassification = "first-publish" | "no-schema-change" | "schema-change" | "validation-failed" | "blocked-removal";
export interface ReleasePolicyResult {
    ok: boolean;
    classification: ReleasePolicyClassification;
    releaseType?: ReleaseType;
    changes: SchemaChange[];
    blockedRemovals: SchemaChange[];
    issues: PolicyIssue[];
}
export interface ReleasePolicyOptions {
    today?: string;
}
export declare function evaluateReleasePolicy(previous: ComponentSchemaArtifact | null | undefined, current: ComponentSchemaArtifact, options?: ReleasePolicyOptions): ReleasePolicyResult;
export declare function diffSchemaArtifacts(previous: ComponentSchemaArtifact, current: ComponentSchemaArtifact): SchemaChange[];
export declare function validateComponentSchemaArtifact(artifact: unknown, path?: string): PolicyIssue[];
export declare function validateDeprecationMetadata(metadata: unknown, path?: string): PolicyIssue[];
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