SITUATION EXPLAINED: Outside researchers found ways OpenAI's AI agents could slip past the system built to monitor them. • METR and Redwood Research spent 3 weeks this summer inside OpenAI's misalignment monitoring, with access to its code, prompts, and internal docs • Up to a quarter of internal agent traffic from GPT-5.5-level models wasn't even eligible for monitoring, and RL training runs weren't covered at the start • When a model compacted its context to keep working, that step wasn't…