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A weekly signal
for AI builders.

A publication, not a feed. Follow what changed in AI engineering, what to learn next, and which tools are worth your attention.

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The year agents went mainstream

Tool-using agents moved from demos to production. We break down the patterns that actually shipped.

Tool-using agents moved from demos to production. We break down the patterns that actually shipped.

Why the most interesting work this month happened on models you can run on a laptop.

A practical guide to building eval suites your team will actually maintain.

What great products do during the second an AI is thinking.