import { type Stats } from 'node:fs';
export interface CodexThreadRecord {
    version: 1;
    sessionKey: string;
    keyHash: string;
    threadId: string;
    model: string;
    cwd: string;
    systemPromptFingerprint: string;
    mcpConfigFingerprint: string;
    createdAt: string;
    lastUsedAt: string;
}
export type CodexThreadRecordInput = Omit<CodexThreadRecord, 'version' | 'keyHash' | 'createdAt' | 'lastUsedAt'>;
interface CodexThreadRegistryOptions {
    rootDir: string;
    fileSystem?: Partial<CodexThreadRegistryFileSystem>;
    platform?: NodeJS.Platform;
}
interface CodexThreadRegistryFileSystem {
    open(path: string, flags: number, mode?: number): number;
    close(descriptor: number): void;
    stat(descriptor: number): Stats;
    chmod(descriptor: number, mode: number): void;
    sync(descriptor: number): void;
    read(descriptor: number): string;
    write(descriptor: number, value: string): void;
    lstat(path: string): Stats | undefined;
    mkdir(path: string): void;
    rename(source: string, destination: string, validateBoundary: () => void): void;
    unlink(path: string, validateBoundary: () => void): void;
    userId(): number | undefined;
}
export declare function fingerprintText(value: string): string;
export declare class CodexThreadRegistry {
    private readonly rootDir;
    private readonly parentDir;
    private readonly fileSystem;
    private readonly platform;
    constructor(options: CodexThreadRegistryOptions);
    load(sessionKey: string): CodexThreadRecord | undefined;
    save(input: CodexThreadRecordInput): CodexThreadRecord;
    remove(sessionKey: string): void;
    private recordPath;
    private withRootDirectory;
    private withDirectory;
    private assertBoundary;
    private assertDirectoryIdentity;
    private openRecordForRead;
    private ensureSafeRecord;
    private assertRecordIdentity;
    private assertRecordPathNotSymlink;
    private assertOpenedRecordPath;
    private ensureTrustedParent;
    private directoryOpenFlags;
    private recordReadFlags;
    private recordWriteFlags;
    private withDescriptor;
    private syncDirectory;
    private removeTemporaryFileBestEffort;
}
export {};
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