export declare const commandLedgerPath: () => string;
/** The exit handler: the only end-record writer in production. Fires on
 * natural exit, on `process.exit` (including the crash tier's exit 4), and
 * on signal-induced exits - never on SIGKILL, which is exactly the
 * start-without-end trace. */
export declare const recordExit: (code: number) => void;
/** Append the start line before work. `command` is the subcommand name, or
 * "hcn" for a bare invocation. Also installs the exit handler that will
 * write this invocation's end line. */
export declare const beginCommandRecord: (command: string | undefined) => void;
/** The crash tier marks the pending record before the process exits; the
 * exit handler turns it into a `crashed: true` end line. */
export declare const markCrashed: (message: string) => void;
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