Demystifying skills and MCPs

We’ve been working on a project called Extensions: customers can now connect their MCPs into our platform then load skills that tell us how to use them, with both skills and connectors (our word for a connected MCP or API) woven into all our agent surfaces. Basically, anything you can do in your Claude/Codex/etc should be doable in our platform, and vice versa. It’s been a fun project but challenging, in part because until now we (incident.io engineers) have been passive consumers of these technologies. We used them, sure, and lots of people had written a skill, but were they good? Did they actually work, beyond just for whichever person had written them? The honest answer is we didn’t know, probably not, and no one could confidently say they had mastered the tools. Extensions meant this needed to change, so we speed-run the process by: Building skill support into our agent harnesses Created a product with a strong conceptual model around skills Dogfood’d the hell out of it: even…