POC Definition: Enhancing CLI Error Detection

Hey guys! Let's dive deep into the world of POC (Proof of Concept) definitions, specifically how we can make our CLI (Command Line Interface) smarter and more helpful. Currently, our CLI is pretty good at catching basic JSON errors – you know, the usual missing commas or mismatched brackets. But what about the trickier stuff? The kind of errors that are syntactically correct but logically flawed? That’s what we're here to tackle today.

The Challenge: Contextual Errors in POC Definitions

Contextual errors in POC Definitions are the sneaky devils of the coding world. Imagine defining a configuration value as null when it absolutely shouldn't be, or setting up a generic key and then forgetting to actually use it anywhere. The CLI might shrug and say, “Looks good to me!” because, technically, the JSON is valid. But you, the poor developer, are left scratching your head when things don’t work as expected. These contextual errors can be a real pain to track down, costing valuable time and effort. We need to equip our CLI with the ability to sniff out these issues and give us a heads-up before they turn into bigger problems.

Think of it like this: your spellchecker can catch misspelled words, but it won't tell you if you've used "there" when you meant "their." That's a contextual error, and it requires a deeper understanding of the text's meaning. Similarly, our CLI needs to understand the meaning of our POC definitions, not just their syntax. This means going beyond basic JSON validation and delving into the relationships between different parts of the configuration.

For instance, if you define a variable but never reference it, that's a potential problem. Maybe you forgot to use it, or maybe it's a leftover from a previous iteration. Either way, the CLI should flag it as a warning. Similarly, if you define a configuration option as null but the application expects a string or a number, the CLI should raise a red flag. These are the kinds of contextual errors we want to catch.

The Solution: Emitting Warnings for Contextual Mistakes

Emitting warnings for contextual mistakes in POC definitions is the key to improving the developer experience. Instead of silently accepting potentially flawed configurations, the CLI should actively point out suspicious patterns and potential errors. This proactive approach can save developers countless hours of debugging and prevent headaches down the line. By implementing a system that emits warnings, we're essentially giving the CLI a built-in