Built on AWS

Experiments and write-ups, each with the notes behind them.

• Lambda cold-start harness

  Measurement

  2026

  A repeatable deploy of the same handler shape across Node.js, Python and provided.al2023, reading initDuration from the platform report.

• S3 event fan-out

  Architecture

  2026

  Routing object events to several consumers with EventBridge and SQS, so there is no router Lambda in the middle.

• Bedrock prompt caching

  Experiment

  2026

  Time-to-first-token with and without cache checkpoints on a long system prompt, with the chart from the run.