The Brian Journal6 entries · July 2026

Notes on building & ideas

Essays, experiments, and field notes on technology, software, and the occasional tangent.


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book-review13 min read

Principles and Patterns of Building AI Agents: An Honest Review of Mastra's Free Two-Book Series

A grounded review of Sam Bhagwat's two free Mastra books, Principles of Building AI Agents and Patterns for Building AI Agents. Principles teaches what to build; Patterns teaches how to keep it alive in production.

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