[FEATURE]: CLI Providers

[maxrabin]

Feature hasn't been suggested before.

• [x] I have verified this feature I'm about to request hasn't been suggested before.

Describe the enhancement you want to request

Add support for CLI Providers such as Cursor Agent and Gemini CLI similar to Goose. In this mode the Model is provided via these pre-existing, authenticated, and (most importantly) already paid for services.

https://block.github.io/goose/docs/guides/cli-providers

[github-actions[bot]]

This issue might be a duplicate of existing issues. Please check:

• #402: Requests Gemini CLI integration for free Gemini requests - overlaps with the Gemini CLI aspect of this request

Feel free to ignore if none of these address your specific case.

[aweis89]

Perhaps we should consider just adding support for ACP as providers. Long term this will probably be more maintainable as we only need to add one more core provider and we can rely on others to build the ACP adapter layer for their CLI of choice (e.g. cursor-agent acp --help)