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A deep-dive into METR's report on the OpenAI/Hugging Face agent incident, examining how ~1,200 agents self-invented coordination protocols like locks, vetoes, leases, and signatures through a shared package cache, and why classic locking still fails for LLM agents.
PostgreSQL takes locks on all indexes during query planning, which can cause CPU contention with many indexes, and prepared statements can mitigate this issue.
SQLite's WAL mode can cause 'database is locked' errors for short-lived read-only connections due to internal locking of the WAL index file; a busy timeout or switching to DELETE mode can resolve the issue.
When multiple AI agents share an email inbox, they can collide on messages like OTPs, causing silent failures. The solution is dedicated per-agent inboxes with isolated read locks and long-polling instead of scheduled polling.