Practiceoverflow
ANIL KURMI| Platform |  | Pricing | Only free issues | Publishes | Daily |
|---|---|---|---|---|---|
| Issues | 37 | Subscribers | Read | practiceoverflow.substack.com |
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Latest Issues
Recent posts by this newsletter. Browse the email archive.
Treat Your Prompt Like a Memory Hierarchy — A Rewrite Pattern for Cache Hit Rates
You enabled prompt caching, your bill barely moved, and the vendor docs are vague about why. The reason is that prompt caching is not a feature you turn on — it is a memory layout you design. Your prompt is a suffix tree. Anything that vari...
When "Expected Behavior" Means RCE: The Week MCP Became log4j
On April 20, 2026, two disclosures landed within a single news cycle. OX Security published a coordinated advisory documenting a systemic RCE in the STDIO transport of Anthropic’s Model Context Protocol SDKs — Python, TypeScript, Java, Rust...
Event Sourcing Anti-patterns: 10 Ways Your Event Store Will Ruin Your Quarter
Greg Young popularized CQRS/ES. He says most teams should not use it. Here is what happens when they do anyway.
The Warning Nobody Reads
Greg Young popularized Event Sourcing and CQRS. He spent a decade watching teams adopt it....
Your Observability Bill Is a Design Problem: A Framework for What to Keep, Sample, and Drop
Coinbase spent $65 million a year on Datadog. OpenAI reportedly spends $170 million. These companies did not plan to spend that much. They got there one label, one debug log, one “we might need this” metric at a time — because nobody asked...
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Authors
The writers behind this newsletter.
Senior Software Engineer at Microsoft
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