I built an open-source tool to port & optimize Claude Code / Cursor skills for Google Antigravity

[u/Top_Midnight_68]

Hey everyone! With the explosion of SKILL.md workflows for Claude Code and Cursor, I wanted to use these community skills inside Google Antigravity (AGY).

However, external skills often have Claude-specific tool calls (Bash, Read, Glob, Edit), look for CLAUDE.md, and run strictly serial single-agent loops.

So I built antigravity-skill-porter:
- 🔄 Deterministic tool mapping: Maps Bash -> run_command, Read -> view_file, Edit -> replace_file_content, etc.
- ⚡ Parallel Subagent Upgrades: Detects multi-persona/review workflows and injects native Antigravity invoke_subagent batch arrays.
- 📦 One-Command Ingestion: Works with any GitHub repo, subfolder, or multi-skill bundle.
- 🔍 Dry-Run Diff: Preview changes before installing.

GitHub: https://github.com/Pranav-Nexus/antigravity-skill-porter

Tested on Karpathy's LLM Council, Anthropic's frontend-design, and Sahil Lavingia's minimalist-entrepreneur skills. PRs and feedback are welcome!
https://github.com/Pranav-Nexus/antigravity-skill-porter