Code mode is all you need: Why agents writing code > calling tools TLDR; For a large class of agent tasks, the best "tool" is a small code-execution surface. Let the model write ordinary code against typed capabilities, then enforce security below the model instead of wrapping e…↗

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Most agent architectures add a reviewer subagent to catch mistakes. You pay the cost twice: once to do the work, again to check it. Claude Skills flip this. They load domain expertise exactly when the agent needs it—during execution, not after. Real-time guidance, zero review ov…↗