# Amazon Bedrock AgentCore lets you preview coding agent web apps live as they are built

> Original title: Preview web apps live as your coding agent builds them with Amazon Bedrock AgentCore runtime

- Source: AWS Machine Learning Blog
- Published: 2026-10-30T21:40:03.000Z
- Bad Influence: https://badinfluence.news/items/k8hzdnh40j00gj8ij2s2kse3m
- Original: https://aws.amazon.com/blogs/machine-learning/preview-web-apps-live-as-your-coding-agent-builds-them-with-amazon-bedrock-agentcore-runtime/

## Summary

AWS shows how AgentCore runtime Session endpoints let a browser open a web app running in an agent's isolated session, using allowed ports and authenticated URLs. The walkthrough deploys a coding agent that edits a Vite website, and the page updates as the agent saves each file without a refresh.