WebContainer Controlled Smoke Test

Overview

This skill adds or plans the smallest useful WebContainer proof: one instance, one deterministic file tree, one bounded dependency install, one server process, and one preview readiness observation. It avoids presenting a tutorial snippet as a production architecture.

Prerequisites

• A browser application already passing the StackBlitz integration preflight
• Cross-origin isolation and HTTPS behavior verified for the target environment
• A small synthetic project that contains no proprietary source or secrets

Tool Discipline

Use Read, Glob, and Grep to establish the application entrypoint, package versions, and existing lifecycle ownership. Use WebFetch only for current official StackBlitz or WebContainers documentation. Use Write or Edit for a user-requested smoke-test implementation after inspection.

Current Contract