This skill should be used when the user says "feature spec teams", "arness code feature spec teams", "team feature spec", "debate this feature", "collaborative feature spec", "spec with agent teams", "multi-agent feature spec", "feature spec debate", or wants to develop a feature idea through structured debate between multiple specialist agents (architects, UX experts, and security specialists) before writing the specification. Uses Claude Code's experimental Agent Teams feature. Requires Agent Teams to be enabled. For standard single-agent feature spec, use arn-code-feature-spec instead.