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Build a daily briefing agent as your first rep for AI agent skills

By Greg Isenberg

The best first project for learning AI agent architecture is simple: build a daily briefing agent. Give it three sources, your calendar, a folder of notes, and a few saved links. Its job is to tell you what matters today, which decisions are waiting for you, and which follow-ups you owe people. Then add one rule: it must show its sources and ask for approval before sending anything. That single project teaches you context management, retrieval, tool use, permissions, and evaluation — all the core components of any serious business agent. The success metric is straightforward: did it save you 10 minutes? Did it surface something you would have missed? Did it produce something you actually used? If yes, you are building the skill.

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