Ah yes. Terraform is super popular for us (almost 1m downloads). We also built a pretty cool "Terraformer" tool that lets you create workflows in UI and translate that to .tf easily.
We take extensibility pretty seriously. Outside the basics, we just released our own agent ready API (https://rootly.com/blog/introducing-rootlys-api-ai-agent-fir...), MCP, docs are now LLM ready (https://docs.rootly.com/llms-full.txt).