Dev Container Features — Maincode

A collection of dev container features maintained by Maincode.

Features

Feature	Description
matilda-code	Installs the Matilda Code CLI — Maincode's Australian-made AI coding agent for the terminal.

Usage

Add a feature to your devcontainer.json:

{
"image": "mcr.microsoft.com/devcontainers/base:debian",
"features": {
"ghcr.io/maincodehq/devcontainer-features/matilda-code:1": {}
}
}

See each feature's README for available options.

Repository Structure

src/
matilda-code/
devcontainer-feature.json # Feature metadata + options
install.sh # Installation script
README.md # Feature documentation
test/
matilda-code/
scenarios.json # Test scenario definitions
test.sh # Shared test script
.github/
workflows/
validate.yml # Validates feature definitions
test.yaml # Runs scenario tests
release.yaml # Publishes features to GHCR

Development

Prerequisites

• Docker
• Node.js (for the devcontainer CLI)
• Dev Containers CLI: npm install -g @devcontainers/cli

Validate

devcontainer features validate src/matilda-code

Test locally

# Run all scenarios
devcontainer features test --features matilda-code --project-folder .# Run a specific scenario
devcontainer features test --features matilda-code --filter default --project-folder .

Publishing

Features are published automatically to the GitHub Container Registry (GHCR) when a tag matching v* is pushed. The release workflow is defined in .github/workflows/release.yaml.

git tag v1.0.0
git push origin v1.0.0

License

MIT