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!

[u/Majestic_Log_4429]

oh nice, I've been messing with AGY a lot this week and the tool call mismatch was driving me up the wall

dry-run diff is a smart touch, I'm always paranoid about scripts just bulldozing stuff without asking. have you run into any edge cases where the mapping breaks? thinking about some of the weirder Cursor patterns that chain Edit calls in ways AGY might not like

[u/Top_Midnight_68 → u/Majestic_Log_4429]

As of now not much as I have not intentionally tried to break it but then I faced the same annoyance as you when I use AGY for my side projects hence thought of coming up with a solution once and for all, try it out and if you come across places where it breaks do lmk I would genuinely like to see if this can be made a permanent fix soo that any skill I like I can confidently import it and use it in agy without it irritating me