Agent Skills: prompt-antigravity-agents-guidelines

Guidelines and procedures for creating, configuring, and testing custom agents in Google Antigravity. Covers declarative Markdown (.md) agents, plugin-defined JSON agents, capabilities configuration (allowed tools, skills, MCPs, bash commands), and runtime isolation modes. Use this skill whenever you are designing a new custom agent, setting up permissions, or writing configurations for Antigravity-run subagents.