Configure a project's /demo launch command and VM Dockerfile by inspecting the repository.
npx skills add https://github.com/MrS-E/config --skill demo-setup-mrs-e
Please help me install this Agent Skill. Skill: demo-setup Source: https://github.com/MrS-E/config/tree/main/junie/versions/2045.46/skills/demo-setup Command: npx skills add https://github.com/MrS-E/config --skill demo-setup-mrs-e
.junie/demo.md and .junie/vms/<vm>/Dockerfile correctly. ## Core Features & Use Cases - Repository inspection: Detects the dev/start command, runtime, package manager, and port from manifests like package.json, lockfiles, pyproject.toml, go.mod, or Gemfile. - Confirmation-first workflow: Never writes files before the user approves the proposed launch command, preventing wrong guesses from being committed. - Dockerfile derivation and verification: Extends the official demo base image with only the layers the confirmed command needs, then builds the image with BuildKit to catch errors early. - Use Case: After running /demo on a Nuxt project for the first time and seeing it abort, ask the agent to finish the setup; it detects pnpm dev, confirms port 3000 with you, writes demo.md, and validates the Dockerfile build. ## Quick Start Ask the agent to set up and finish the /demo configuration for this project by inspecting the repo and confirming the launch command with you.High-intent search queries and answers about installing and using this skill.
Ask the agent to finish the /demo setup. It inspects your repo for the dev/start command, runtime, and port, proposes a candidate launch command for your confirmation, then writes .junie/demo.md and the VM Dockerfile only after you approve.
It reads scripts in package.json (dev, start, preview) or the equivalent for your stack, identifies the package manager from lockfiles like pnpm-lock.yaml or requirements.txt, and infers the port from the script or framework defaults. It treats suspicious scripts like start-*.sh skeptically and always confirms with you first.
Yes, but only by adding layers on top of the official demo base image, which already ships Chromium, Node.js, xterm, a window manager, and an ffmpeg recorder. Never replace the FROM line; add only runtimes or packages the confirmed launch command actually needs.
The skill builds the image with DOCKER_BUILDKIT=1 only if layers were added. If the build fails, it applies at most one or two confident fixes, then stops and shows you the error rather than guessing repeatedly. If docker is unavailable or the base image cannot be pulled, it skips verification and tells you why.
Do not use it when /demo is already configured and you only want to run it, or when editing application code unrelated to demo setup. It also cannot support apps requiring services the VM cannot provide, such as a Docker daemon or multi-service orchestrators.
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