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devcontainer-setup

Use when adding a devcontainer or isolated dev environment to a repo that lacks one, for Python, Node/TypeScript, Rust, Go, or a combination. Not for editing an existing devcontainer.

.devin/skills/devcontainer-setup/SKILL.md

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55
Repository last updated
Sep 28, 2026
License
Apache-2.0

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# Devcontainer setup

## Contract

| Field | Bound contract |
|---|---|
| Trigger | The user asks to add a new devcontainer or isolated Claude Code development environment to a repository that does not already have one, for Python, Node/TypeScript, Rust, Go, or a supported combination. |
| Authority | Reversible local: writes only the repository's `.devcontainer/` directory; rollback is version control. No remote mutation. No container is built, launched, published, or pushed. |
| Side effect | Creates or replaces the five generated files under `.devcontainer` (Dockerfile, devcontainer.json, post_install.py, .zshrc, and install.sh) with project substitutions and merged language-specific features, settings, extensions, commands, and persistent-volume declarations. |
| Done | All template placeholders are resolved; devcontainer.json is valid; every detected language is represented without duplicate configuration; postCreateCommand composes all required setup commands; the security mounts and token-forwarding contract are explicit; and the user receives both VS Code and CLI startup instructions without claiming the container was built or launched unless it was. |

## Inputs

Required: the repository root to scan for language manifests and to write `.devcontainer/`.