What problem does it solve? Working in the Antigravity Standalone App requires platform-specific conventions that differ from Claude Code and Codex: plans must be delivered both to the artifact directory and the shared plans repository, model tiers must be resolved against the models the session actually offers, and skill discovery works through skills.json rather than directory junctions. This Skill encodes those rules so agents behave correctly in this harness. ## Core Features & Use Cases - Dual plan delivery: Creates artifacts in the artifact directory, copies them to the shared plans repository with versioned naming, commits the round, and presents every document as a clickable link. - Cross-application plan implementation: Reads the latest _v<N> plan authored in another application and follows its step order, asking rather than improvising when ambiguous. - Tier-to-model resolution and spawn boundary: Maps deep/standard/mechanical/inherit tiers to models available in the current session and enforces the rule that only this vendor's models can be spawned. - Use Case: An agent in Antigravity receives a plan written in Claude Code, resolves the 'standard' tier to an available mid-tier model, implements the steps, and delivers the walkthrough both as an artifact and as a committed copy in C:\hmp\plans. ## Quick Start Read this skill before planning or implementing any task in the Antigravity Standalone App so plans, links, and model choices follow the correct conventions.
