IDE & DevContainer Guide (Phase 11)

MyCLI generates DevContainer, VS Code, and Cursor IDE configuration for consistent local development.

Quick start

my add ide                         # VS Code + Cursor rules + IDE.md
my add ide --devcontainer          # IDE + DevContainer together
my add devcontainer                # DevContainer only
my create my-app --yes --ide       # Include IDE config during create
my create my-app --yes --devcontainer
my dev                             # Run dev script (detects package manager)
my test --dry-run                  # Preview test command
my doctor                          # Validates IDE/DevContainer features

Node version toolchain (my create)

During my create, pick how Node.js versions are pinned for the project:

| Option | Generated files | |--------|-----------------| | nvm (default) | .nvmrc | | Volta | .nvmrc + volta.node in package.json | | asdf | .tool-versions | | None | .nvmrc only (no extra manager config) |

my create my-app --yes --node-toolchain volta
my create my-app --yes --node-toolchain asdf

The choice is saved in .myclirc.json under extensions.nodeToolchain.

IDE config (my add ide)

Generates:

| File | Purpose | |------|---------| | .vscode/settings.json | Format on save, TypeScript SDK, Vitest | | .vscode/extensions.json | ESLint, Prettier, TypeScript, Vitest, Docker | | .vscode/launch.json | Debug dev server and tests | | .cursor/rules/mycli-project.mdc | Cursor AI project conventions | | IDE.md | Setup documentation |

Options: --devcontainer, --node-version

DevContainer (my add devcontainer)

Generates:

| File | Purpose | |------|---------| | .devcontainer/devcontainer.json | Node.js Dev Container (Codespaces compatible) | | .devcontainer/docker-compose.yml | Optional when Docker feature/Dockerfile exists | | IDE.md | DevContainer usage docs |

Uses mcr.microsoft.com/devcontainers/javascript-node with GitHub CLI feature.

Workflow commands

| Command | Description | |---------|-------------| | my dev | Runs package.json dev script | | my test | Runs test script | | my lint | Runs lint script | | my build | Runs build script |

All workflow commands auto-detect npm/pnpm/yarn/bun and support --dry-run.

Manager

| Package | Responsibility | |---------|----------------| | @mycli-cli/ide-manager | DevContainer, VS Code, and Cursor scaffolding |

Templates live in apps/cli/templates/features/ide/.