Byte-Sized Design
Master system design concepts, engineering fundamentals, and interview basics. Weekly summaries, post-mortems, and advice for 43,000+ engineers.
| Platform |  | Pricing | Freemium | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 165 | Founded | 4 years ago | Last Issue | 10 days ago |
| Active | |||||
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read.bytesizeddesign.comLatest Issues
🧠 Meta's Smartest Agent Was the Problem. The Dumb One Fixed It
One agent with all the knowledge hallucinated in production. A router that does zero domain work plus 14 specialists cut column onboarding from days to under an hour.
⚡ TLDR Meta built one AI agent that knew everything about onboarding a d...
📉 98% GPU Utilization and a 6x Speedup Left on the Table
A Qwen 27B fine-tune showed 98% GPU utilization and ran 6x slower than it should. Two fixes from Databricks: install the fused kernels, pack the batches.
⚡ TLDR A fine-tune of Qwen 27B on Databricks’ AI Runtime took 7 hours 44 minutes with...
🚪 Uber Put 5,000 Tools in Front of Its Agents. Every One Ships Switched Off.
800+ MCP servers behind one gateway, drafted by a crawler and approved by humans
⚡ TLDR Uber has 800+ MCP servers and 5,000+ tools sitting behind a single gateway, with hundreds of teams building agents on top. Almost none of the work was...
🚦 Spotify Doubled Its Engineering Output. The Bottleneck Just Moved.
Spotify's merged changes doubled with AI and code quality held. Review, testing, and ops strained instead. A five-part scorecard for measuring AI's real impact.
⚡ TLDR 17,000 merged changes in August, up from roughly 8,100 a year earlier....
🧱 Your Multi-Agent Architecture Is a 2016 Microservices Diagram With the Boxes Renamed
The parts that still work, the three places it breaks, and one heuristic for right now
⚡ TLDR Every multi-agent architecture diagram published this year looks like a microservices diagram with the boxes renamed. Planner, researcher, coder,...
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Real talk about building systems that work. Career advice for growing engineers, how actual companies solve large-scale problems, post-mortems from things that broke, and the system design fundamentals that matter. No fluff, no buzzwords.
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