export interface TraceConfig {
    outputDir?: string;
    /** Where outputDir came from, for the tool's reply. */
    outputDirSource?: 'config' | 'remembered';
    maxSeconds: number;
    maxSizeMB: number;
}
export declare function isTraceEnabled(env?: NodeJS.ProcessEnv): boolean;
/** Directory for this installation's tool state: beside the index database, else the user profile. */
export declare function traceStateDir(env?: NodeJS.ProcessEnv): string;
export declare function readRememberedOutputDir(env?: NodeJS.ProcessEnv): string | undefined;
export declare function rememberOutputDir(dir: string, env?: NodeJS.ProcessEnv): string;
export declare function resolveTraceConfig(env?: NodeJS.ProcessEnv): TraceConfig;
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