You made the right call. Skills were added to Antigravity and I immediately started creating and using them. I never used custom MCP servers, but skills were immediately obvious to me.
An example: I made a report_polisher skill that cleans some markdown formatting, check image links, and then uses pandoc to convert it to HTML. I ask the tool itself created the skill, then I just tweaked it.
Please do open-source your skill and blog about it. Also, would like to hear from your experience after a few months of use. Like - how many times did you use the skill, did you run into some problems later (due to some unexpected thing in the markdown), did the skill generalize - or do you have to make tweaks for particular inputs.
How is the fidelity of something like this? It seems like it would randomly fuck it up once in a blue moon. Is that not the case? For your use case I don't understand why you would want an AI involved at all.