What it does. Antigravity plugin manifest: name, display name, version 7.0.2, description, assets/antigravity-logo.png as logo, two suggested prompts, category, keywords, author, and license. It lists no skills or hooks.
Why it’s here. agy plugin install https://github.com/obra/superpowers reads it. Antigravity has no session-start hook; the README explains that Antigravity lists each skill’s description and that the using-superpowers description prompts the model to load that skill at the start of a conversation.