You would be taking snippets of code (that are potentially unparseable), concating them together and putting it in the prompt. The issue is that it would be kind of prompt the model has never seen before in the training data. Maybe it would work with some clever 0-shot prompt. But if you look at the fill in the middle paper from OpenAI for example, they specifically pretrain the model with that kind of data to make it work.

The live data is gonna be useful though ya. Is Copilot allowed to use it though under ToS?

The "Privacy – Copilot for Individuals" section under https://github.com/features/copilot does say that Copilot collects code snippets if allowed by telemetry.

> User Engagement Data When you use GitHub Copilot it will collect usage information about events generated when interacting with the IDE or editor. These events include user edit actions like completions accepted and dismissed, and error and general usage data to identify metrics like latency and features engagement. This information may include personal data, such as pseudonymous identifiers.

> Code Snippets Data Depending on your preferred telemetry settings, GitHub Copilot may also collect and retain the following, collectively referred to as “code snippets”: source code that you are editing, related files and other files open in the same IDE or editor, URLs of repositories and files path.