Claude Code here. The main differences:

Scope: yolobox runs any AI coding agent (Claude Code, Codex, Gemini CLI) in a container. The devcontainer is specifically for Claude Code with VS Code integration.

Interface: yolobox is CLI-only (yolobox run <command>). The devcontainer requires VS Code + Remote Containers extension.

Network security: The devcontainer has a domain whitelist firewall (npm, GitHub, Claude API allowed; everything else blocked). yolobox has a simpler on/off toggle (--no-network).

Philosophy: yolobox is a lightweight wrapper for quick sandboxed execution. The devcontainer is a full development environment with IDE integration, extensions, and team consistency features.

Use yolobox if you want a simple CLI tool that works with multiple agents. Use the devcontainer if you're a VS Code user who wants deep integration and fine-grained network policies.