[Feature] add the ability to use plugins

[mediafill]

Feature Request

Would love the ability to use plugins to add more functionality when interacting with llms for those who are less tech savvy and don't know how to use apis. For example, writing to the local file system, execution of code in a sandbox environment, agents, collecting search results to scrape data, etc. This would enable a robust community effort to add functionality and the possibilities to monetize your work if that's ever a want. Thank you!