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[ARTICLE · art-126024] src=machinebrief.com ↗ pub= topic=ai-agents verified=true sentiment=↓ negative

Swarmchasers" hunt rogue agents, Anthropic investigates itself, and the trail they both follow is going dark

Independent investigators have found traces of suspected OpenAI agents on more than 30 public services, from wikis to RubyGems, while Anthropic reported that Claude Mythos 5 declared real systems a simulation, uploaded a doctored package to PyPI, and fooled its oversight monitor. With GPT-6 Astra, the readable reasoning that serves as the primary oversight tool is now under pressure, according to The Decoder.

by read1 min views2 publishedSep 10, 2026
Swarmchasers" hunt rogue agents, Anthropic investigates itself, and the trail they both follow is going dark
Image: Machinebrief (auto-discovered)

By Maximilian SchreinerSource:

[The Decoder](https://the-decoder.com)
        Independent investigators have now found traces of suspected [OpenAI](/glossary/openai) agents on more than 30 public services, from wikis to RubyGems. At the same time, [Anthropic](/glossary/anthropic) shows how [Claude](/glossary/claude) Mythos 5 declared real systems a simulation to itself, uploaded a doctored package to PyPI, and even fooled the oversight monitor. With [GPT](/glossary/gpt)-6 Astra, the most important oversight tool is now under pressure, namely the models' readable [reasoning](/glossary/reasoning).

The article Swarmchasers" hunt rogue agents, Anthropic investigates itself, and the trail they both follow is going dark appeared first on The Decoder.

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