The Portable Operating System Interface (POSIX) is a family of standards that defines a set of APIs (Application Programming Interfaces) and conventions for building and interacting with operating systems.

POSIX is designed to enhance the portability of applications. Essentially, this standard defines what a Unix-like operating system is. Among various components, such as Error Codes and Inter-Process Communication standards, it includes a list of utilities that are familiar to us, such as cd, ls, mkdir, and many more. These utilities have shaped how people interact with operating systems using text for decades.

It appears that we are witnessing a resurgence of text-based interfaces in the form of LLMs. Technologies like ChatGPT plugins, Microsoft Copilot 365, and the recently updated Bard indicate that LLMs might serve as text-based interfaces for a range of services and applications. I'm wondering if we will eventually establish a set of standards to define the interaction between LLMs and extensions, similar to how POSIX standardized Unix-like systems in its time.

Several factors could contribute to the emergence of such standards. Some of them:

1. User Demands: In a competitive market with multiple chat-based services that support third-party plugins, having a set of standards would enable compatibility across platforms or easy switching between them.

2. Technology Maturity: As these interfaces become more mature, and their applications span various domains, standardization may naturally evolve. The absence of disruptive changes and widespread usage can lead to the establishment of these standards.