Agents, tool calls and the plumbing that makes a model genuinely useful inside a real system.
I assumed the model would use the tools sensibly. It did not. What changed once I started designing tools the way I design an API: narrower inputs, typed arguments, and error messages written for the model rather than for me.
Less about the hype, more about a specific kind of repetitive work I would like a program to take off my hands.
A month of letting an assistant write most of the first draft: where it saved hours, and where it cost me a weekend.
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I am always up for a conversation about architecture, trade-offs, or a bug that refuses to die.
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