/**
 * gh rate-limit hint (CC 2.1.198 parity).
 *
 * CC appends a one-shot <system-reminder> to a FOREGROUND Bash result when a `gh` invocation hits the
 * GitHub API rate limit, so the model sleeps/schedules instead of hammering retries. The command gate,
 * output gate and 60s throttle below are ported verbatim; a detached/background task is never hinted.
 * Registered delta: CC's closing clause names its ScheduleWakeup tool; sema's wait primitive is the
 * Monitor tool, so that clause is adapted — everything else is verbatim.
 */
/** Test seam: reset the process-wide throttle window (mirrors CC's module-level timestamp). */
export declare function resetGhRateLimitHintThrottleForTests(): void;
/**
 * Returns the rate-limit reminder when `command` is a real gh call AND `output` shows a rate-limit
 * error AND the 60s throttle window is open; otherwise undefined. Callers attach it to FOREGROUND
 * Bash results only (CC gates on `backgroundTaskId` — a detached/background task is never hinted).
 *
 * `monitorToolActive`: the closing clause teaches the Monitor tool, but Monitor is mounted by the
 * Runner (`backgroundTaskToolsActive`), not by the Bash tool — under handsReadOnly or a background-less
 * env the taught tool is not on the roster. `false` drops exactly that clause (the sleep-until-reset
 * advice stays); absent/`true` keeps the full wording, so an uninformed caller gets the byte-identical
 * sentence rather than a silent rewrite.
 *
 * `mark`: the session's reminder provenance mark, stamped on the open tag by the mint home (body bytes
 * unchanged; absent ⇒ bare tag).
 */
export declare function ghRateLimitHint(command: string, output: string, now?: number, monitorToolActive?: boolean, mark?: string): string | undefined;