What broke running an agent fleet 24/7 — it wasn't prompt quality

ParrotIntegrated · reddit · 2026-09-08

A team running autonomous agents around the clock found production failures came from harness and plumbing, not LLM reasoning. Key lessons: fingerprint schemas at bind time to catch silent API drift; use client-side gateway admission control to prevent 429 thundering herds from synchronized backoffs; and pass immutable artifact pointers (receipt hashes) between agents instead of raw transcripts, which burn context rediscovering settled decisions.

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