π£ Claude Fable 5, the first in @AnthropicAI's Mythos model class, is now generally available and rolling out in GitHub Copilot.
It is designed for long-horizon, autonomous coding and knowledge-work tasks. Try it out in @code or the GitHub Copilot app. β¬οΈ
github.blog/changelog/2026-0β¦
You've probably already approved one without realizing it. π
Agent-generated pull requests pass the tests and show clean diffs, so you merge. That's exactly the problem.
This checklist catches what they hide: gamed CI, security gaps, and bugs that slip past green checks.
github.blog/ai-and-ml/generaβ¦
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