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Substack
PricingFreemiumPublishesTwice weekly
Issues236Founded3 years agoLast Issue7 days ago
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Latest Issues

Agent Memory From Scratch

Agent memory is one of the hottest problems in AI engineering right now, with Graphiti, mem0, HydraDB, and cognee all racing to solve it. A race this crowded means one thing: nobody has cracked it yet.

But if you’re thinking of jumping str...

7 days ago
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Your Second Brain Is a Graveyard. Make It Agent Memory.

I spent 18 months turning my second brain into my living research memory. My digital life contains 10,994 notes: over 5,000 in Obsidian, another 5,000 in Readwise, plus more in Notion and Google Drive, growing by roughly 250 a month.

The r...

14 days ago
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From Harness Lock-In to Portable Context Layer

Models are commoditizing fast. Harnesses already have. What you care about is your research, your notes, your conversations, your tasks, your preferences, and your domain knowledge.

“Free” open-source harnesses don’t make you free. What...

20 days ago
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How Evaluation-Driven Development (EDD) Works

The scariest AI failures are the silent ones.

You ship a change to your agent on a branch — a new feature, a prompt fix, a quick refactor. No errors. No complaints. Everything looks fine. But does it still work, or did you quietly break so...

a month ago
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Build, Configure, or Use As-Is: The Agentic Harness

and I were planning our upcoming book when we kept hitting the same realization. Just as LLMs got commoditized, the harness around them is commoditizing too, hardening into a handful of standardized, batteries-included frameworks. Once it’s...

a month ago
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Authors

The writers behind this newsletter.

  • Paul Iusztin

    Senior AI Engineer • Founder @ Decoding AI • Author @ LLM Engineer’s Handbook ~ I ship AI products and teach you about the process.

  • Alejandro Aboy

    Data Engineer who likes to play with AI. Building & growing my Data & AI career by sharing the tools and lessons I wish I had when I started.

  • dr.max

    scientist, engineer, architect; photographer; collects complex mechanical things; tries to swim, bike, run; ex-ibm de; founder and ceo

  • Louis-François Bouchard

    Focused on making AI accessible. What's AI on YouTube, Spotify, Apple Podcasts. Co-founder @towards_ai. ex Ph.D. student @Mila_Quebec @polymtl.

  • Paolo Perrone

    Shipping Production AI: Agents, Inference, GPU. Read by 1M+ AI engineers.

  • Lucian Lature

    I am an experienced architect/full stack engineer and for the past 20 years I have been creating websites and intranet applications

  • Priya

    Senior software developer and AI explorer| passionate about building production-ready intelligent systems | avid trekker

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