devcontainer-setup

The devcontainer-setup skill creates a pre-configured development container environment designed for isolated and reproducible project workflows. It helps developers quickly add devcontainer support to existing repositories by generating standardized configuration files and automatically detecting the project’s language stack. The skill is focused on development use cases rather than production deployment and is intended to simplify onboarding, sandboxing, and consistent local development across teams. It also supports persistent configuration through dedicated volumes and integrates Claude Code tooling into the containerized environment.

The skill includes a structured workflow that performs project reconnaissance, language detection, configuration generation, and file creation inside a .devcontainer/ directory. It supports Python, Node/TypeScript, Rust, and Go projects, including multi-language repositories where configurations, setup commands, extensions, and settings are merged together. The generated environment includes Claude Code integrations, sandboxing utilities, Python 3.13 via uv, Node 22 via fnm, AST-based search tooling, network isolation capabilities, token forwarding through environment variables, and modern command-line utilities such as ripgrep, fd, fzf, tmux, and git-delta. For Python projects, the skill can also adjust the installed Python version based on project configuration.

This skill is useful for developers, AI-assisted coding workflows, open source contributors, and teams that require secure and reproducible development environments. It is particularly valuable for projects that need isolated workspaces, standardized tooling across contributors, or sandboxed Claude Code environments. The skill is best suited for initializing new devcontainer support rather than modifying existing configurations or managing production container infrastructure.