export declare const SUPERBLOCKS_LIBRARY_PACKAGE = "@superblocksteam/library";
export declare const SUPERBLOCKS_SDK_API_PACKAGE = "@superblocksteam/sdk-api";
export declare const MANAGED_PACKAGE_DEPENDENCIES: readonly ["@superblocksteam/library", "@superblocksteam/sdk-api"];
export declare const PACKAGE_DEPENDENCY_FIELDS: readonly ["dependencies", "devDependencies", "peerDependencies", "optionalDependencies"];
export type PackageJsonSnapshot = {
    value: string;
    diagnostic: {
        sha256: string;
        bytes: number;
    };
};
export type PackageJsonSnapshotReadResult = {
    packageJson: unknown | null;
    snapshot: PackageJsonSnapshot | null;
};
/**
 * pnpm 11+ reads install settings like `overrides` and which dependency build
 * scripts may run from pnpm-workspace.yaml instead of package.json, so a change
 * there changes what an install does. Its text is part of the snapshot while
 * pnpm is turned on; npm reads none of it.
 */
export declare function readPnpmWorkspace(cwd: string): Promise<string | null>;
export declare function packageJsonSnapshot(packageJson: unknown, pnpmWorkspace?: string | null): PackageJsonSnapshot;
export declare function didPackageJsonSnapshotChange(before: PackageJsonSnapshot | null, after: PackageJsonSnapshot | null): boolean;
/**
 * True when the install from `after` would change the managed platform
 * packages that `before` installed. A missing baseline is an initial install,
 * not an upgrade.
 */
export declare function didManagedPackagePinsChange(before: PackageJsonSnapshot | null, after: PackageJsonSnapshot | null): boolean;
export declare function packageJsonSnapshotDiagnostic(snapshot: PackageJsonSnapshot | null): {
    present: boolean;
    sha256?: string;
    bytes?: number;
};
export declare function readPackageJsonSnapshot(cwd: string): Promise<PackageJsonSnapshot | null>;
export declare function readPackageJsonSnapshotWithSource(cwd: string): Promise<PackageJsonSnapshotReadResult>;
export declare function restoreManagedPackageDependencies(cwd: string, warmPackageJson: unknown | null): Promise<boolean>;
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