Developer, Speaker, Tinkerer — serverless, AI agents, and whatever else is on my mind.https://edjgeek.com/https://edjgeek.com/blog/mcp-serverless-security/https://edjgeek.com/blog/mcp-serverless-security/MCP's most popular transport has no authentication. AWS serverless removes the conditions that make that dangerous.Mon, 27 Apr 2026 00:00:00 GMThttps://edjgeek.com/blog/lambda-cold-starts-dead/https://edjgeek.com/blog/lambda-cold-starts-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.Thu, 23 Apr 2026 00:00:00 GMThttps://edjgeek.com/blog/lambda-managed-instances/https://edjgeek.com/blog/lambda-managed-instances/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.Mon, 20 Apr 2026 00:00:00 GMThttps://edjgeek.com/blog/pipelayer-agent/https://edjgeek.com/blog/pipelayer-agent/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.Sat, 11 Apr 2026 00:00:00 GMThttps://edjgeek.com/blog/s3-files-lambda-agents/https://edjgeek.com/blog/s3-files-lambda-agents/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.Fri, 10 Apr 2026 00:00:00 GMThttps://edjgeek.com/blog/hello-world/https://edjgeek.com/blog/hello-world/A little about me, what I work on, and what you'll find on this blog.Wed, 01 Apr 2026 00:00:00 GMT