Do I need all three plugins, or can I just use one?

[fredcallagan]

The plugins are independently installable. Most developers start with Arness Code alone, which covers the full development pipeline (spec, plan, execute, review, ship).

• Spark is for greenfield exploration — useful before you write code (personas, competitive research, naming, prototyping).
• Infra handles containerisation, IaC, CI/CD, and deployment.

Install only what you need:

/plugin marketplace add AppsVortex/arness
/plugin install arn-code@arn-marketplace

Each works independently, but combined they give you the full pipeline from idea to production. Spark feeds into Code which feeds into Infra — context flows end to end. You can always add or remove a plugin later.