edjgeek
developer · speaker · tinkerer
Latest Posts
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200,000 MCP Servers Are Exposed. Here's Why Serverless Is Safer.
MCP's most popular transport has no authentication. AWS serverless removes the conditions that make that dangerous.
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Cold Starts Are Dead
Lambda cold starts in 2026 are 200-400ms for Python, sub-100ms for Go and Rust, and 90-140ms for Java with SnapStart. The data says the argument is over.
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Lambda Managed Instances: A Working Demo and the Math Behind It
Lambda Managed Instances let multiple invocations share the same CPU while waiting on network calls. Here's a working demo, the cost math, and when LMI actually saves you money.
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My Brother Doesn't Code. Now He Ships Features.
How I built a Telegram bot with Amazon Bedrock AgentCore and Claude that lets a non-developer iterate on a production PWA using plain English.
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Lambda Just Got a File System. I Put AI Agents on It.
S3 Files mounts your S3 bucket as a local file system in Lambda. I built AI code review agents that share a workspace through it, orchestrated by a durable function.
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Hey, I'm edjgeek
A little about me, what I work on, and what you'll find on this blog.