Hello, about Claude Code where only Anthoripic models are supported, in reality you can use Claude Code router (https://github.com/musistudio/claude-code-router) to use other models in Claude Code. I use it since some weeks with opensource models and it works pretty well. You can even use "free" models from openrouter

Thank you. But the main blocker for me right now is their skill definition: https://platform.claude.com/docs/en/agent-sdk/skills#how-ski...