export type WorkspaceRegistryKind = "git" | "directory";
export type IncarnationStatus = "confirmed" | "suspect" | "replaced" | "unknown";
export interface WorkspaceIdentityInput {
    readonly installationId: string;
    readonly platformNamespace: string;
    readonly volumeNamespace: string;
    readonly workspaceKind: WorkspaceRegistryKind;
    readonly canonicalIdentityComponents: readonly string[];
}
export interface WorkspaceRegistryPaths {
    readonly graftDir: string;
    readonly workspaceDir: string;
    readonly metadataPath: string;
    readonly incarnationsDir: string;
    readonly incarnationDir: string;
    readonly incarnationMetadataPath: string;
    readonly incarnationCacheDir: string;
}
export interface WorkspaceRegistryRetention {
    readonly cachePolicy: "derived-content";
    readonly workspaceBudgetBytes: number;
    readonly ttlDays: number;
}
export interface WorkspaceRegistryStorage {
    readonly registry: "graft-managed";
    readonly cache: "graft-managed";
}
export interface WorkspaceMetadataRecord {
    readonly schemaVersion: 1;
    readonly workspaceId: string;
    readonly displayName: string;
    readonly canonicalRoot: string;
    readonly gitCommonDir: string;
    readonly sanitizedRemotes: readonly string[];
    readonly incarnationId: string;
    readonly historyBindingIds: readonly string[];
    readonly storage: WorkspaceRegistryStorage;
    readonly createdAt: string;
    readonly lastObservedAt: string;
    readonly retention: WorkspaceRegistryRetention;
}
export interface IncarnationMetadataRecord {
    readonly schemaVersion: 1;
    readonly workspaceId: string;
    readonly incarnationId: string;
    readonly incarnationStatus: IncarnationStatus;
    readonly createdAt: string;
    readonly lastObservedAt: string;
    readonly evidence: {
        readonly kind: "git";
        readonly canonicalRoot: string;
        readonly gitCommonDir: string;
        readonly repositoryFingerprint?: string | undefined;
    };
}
export interface ObserveGitWorkspaceInput {
    readonly graftDir: string;
    readonly canonicalRoot: string;
    readonly gitCommonDir: string;
    readonly remotes?: readonly string[] | undefined;
    readonly installationId?: string | undefined;
    readonly platformNamespace?: string | undefined;
    readonly volumeNamespace?: string | undefined;
    readonly now?: (() => string) | undefined;
    readonly randomBytes?: ((size: number) => Buffer) | undefined;
    readonly repositoryFingerprint?: string | undefined;
}
export interface ObservedWorkspaceRecord {
    readonly workspaceId: string;
    readonly incarnationId: string;
    readonly metadata: WorkspaceMetadataRecord;
    readonly paths: WorkspaceRegistryPaths;
}
export declare function deriveWorkspaceId(input: WorkspaceIdentityInput): string;
export declare function registryPaths(graftDir: string, workspaceId: string, incarnationId: string): WorkspaceRegistryPaths;
export declare function sanitizeRemoteUrl(remote: string): string;
export declare function loadOrCreateInstallationId(input: {
    readonly graftDir: string;
    readonly now?: (() => string) | undefined;
    readonly randomBytes?: ((size: number) => Buffer) | undefined;
}): Promise<string>;
export declare function observeGitWorkspace(input: ObserveGitWorkspaceInput): Promise<ObservedWorkspaceRecord>;
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