Start with a small, focused agent — not an all-knowing mega-agent
A common mistake when learning AI agent development is trying to build an all-knowing agent first — a big, ambitious 'Agent Pro' project. The better approach is to start small: build one narrow agent, make it genuinely useful, give it a schedule, and define a clear success metric. A small agent with a real job and a measurable outcome teaches you the same architectural patterns as a large one, without the complexity that makes it easy to abandon. Master the shape of a serious agent at small scale before you try to go big.
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