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Renn F
a4a5756f67
_probe_target returns (None, {}) for grok — the grok CLI's xAI endpoint is
closed and the SuperGrok OIDC access token is not a valid bearer for the metered
api.x.ai, so a real probe would either no-op or strand grok parked forever.
_do_probe treats url-is-None as success (time-expiry optimism), so once the
60s retry_after passes the probe loop optimistically clears the grok park, a
cleared park dispatches a fresh grok agent that hits the still-active xAI 429,
exits 75, and re-parks — a flat ~90s crash-retry cycle for the whole xAI
rate-limit window (each cycle costs container startup + a rejected grok call).
Fix: track _grok_repark_count + _grok_last_park_at in _park_grok_rate_limited
and back the re-park retry_after off exponentially within one episode
(60 -> 120 -> 240 -> ... capped at 2**4 = ~16min cycle) so the churn dampens. A
gap past _GROK_REPARK_EPISODE_GAP_S (25min, > the capped cycle) means no re-park
for that long => the rate limit actually lifted => a fresh episode resets the
count to the base 60s, so recovery latency isn't penalized across episodes.
The first park in a fresh episode is unchanged at 60s.