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PLUS: Microsoft reorganizes for superintelligence
Anthropic just dropped their internal playbook on building Claude Code skills. Hundreds in production, nine categories, real patterns that work.
OpenAI shipped GPT-5.4 mini optimized for coding and subagents. It's twice as fast as GPT-5 mini.
Add these custom instructions to Codex to make it test its own work and report back in plain English, not code-speak.
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