22 comments

  • ramon156 18 hours ago ago

    > the extension detects tokens and sends the code to an LLM

    > The LLM generates documentation

    so, not documentation? Why not write your own engine and detect the official docs? e.g. docs.rs would do this wonderfully

    • sampsonj 17 hours ago ago

      The LLM approach is simpler and more flexible since it works with every library and language out of the box.

      Looking up official documentation would require shipping sophisticated parsers for each language, plus a way to map tokens to their corresponding docs. I'd also need to maintain those mappings as libraries evolve and documentation moves. Some ecosystems make this easier (Rust with docs.rs), but others would be much harder (AWS documentation, for example).

      I also want explanations visible directly in hover hints rather than linking out to external docs. So even with official documentation, I'd need to extract and present the relevant content anyway.

      Beyond that, the LLM approach adapts to context in ways static docs can't. It generates explanations for code within the documentation you're reading, and it works on code that doesn't compile, like snippets with stubs or incomplete examples.

      It could be interesting in the future to look into doing some type of hybrid approach where an LLM goes out and searches up the documentation, that way it's a little bit more flexible. But that would also be a bit slower and more costly.

      • nativeit 17 hours ago ago

        > The LLM approach is simpler

        For whom? The whole reason I want to consult docs is to get the official documentation on a given topic. How could I trust anything it says, and what’s to say any earned trust is durable over time?

        • almostgotcaught 17 hours ago ago

          > For whom?

          what is the name for this kind of pointless, lazy, selective, quoting that willfully misconstrues what's being quoted? the answer to this question is incredibly clear: for the developer that created this tool. if that makes you unhappy enough to malign them then maybe you should just not use it?

          • F3nd0 13 hours ago ago

            > pointless, lazy, selective, quoting that willfully misconstrues what's being quoted

            They quoted the part they were replying to. The point was to show what they were asking about. If your question pertains to only a part of the text, it only makes sense to be selective. That's not wilfully misconstruing anything; that’s communicating in a clear, easy-to-follow way. The context is still right up there for reading, for anyone who needs to review it.

            > the answer to this question is incredibly clear: for the developer that created this tool

            Questions aren’t only ever asked out of pure curiosity; sometimes they’re asked to make the other person give them more consideration. The question you quote was accompanied by an explanation of how the commenter found the approach less simple for them as a user, suggesting that perhaps they think the developer would have done better to consider that a higher priority. (I might add that you, too, chose to selectively omit this context from your quoting—which I personally don’t see as problematic on its own, but the context does require consideration, too.)

            > if that makes you unhappy enough to malign them then maybe you should just not use it?

            The author of the extension chose to share what they made for others to use. They asked for feedback on user experience and expressed doubt about their design decisions. If someone finds they might not want to use it because of what they consider fundamentally flawed design, why couldn’t they tell the author? It’s not like they were rude or accused them of any wrong-doing (other than possibly making poor design choices).

          • sampsonj 16 hours ago ago

            lol thank you, I was just going to respond to them. One thing I should mention too is that if it were at all practical to build without using generative AI, someone would have built something similar years ago before LLMs.

            • jagged-chisel 12 hours ago ago

              If there’s any amount of irony in your comment, I’m missing it - and I apologize for that.

              That said, people have built this without LLMs years, even decades, ago. But UX has fallen by the wayside for quite some time in the companies that used to build IDEs. Then some fresher devs come along and begin a project without the benefit of experience in a codebase with a given feature … and after some time someone writes a plugin for VSCode to provide documentation tooltips generated by LLM because “there is just no other way it can be done.”

              We have language servers for most programming languages. Those language servers provide the tokens one needs to use when referencing the documentation. And it would be so much faster than waiting for an LLM to get back to you.

              TBH, if anyone’s excuse is “an LLM is the only way to implement feature Q,” then they’re definitely in need of some experience in software creation.

              • freedomben an hour ago ago

                I don't think you're wrong, but question: it's the weekend, you have an idea for something like this that you want to crank out. Is it really better for you to never ship because it takes a long time to build, or is it better to be able to ship using something like an LLM?

                In my opinion the shipped product is better than the unshipped product. While of course I would prefer the version that you have designed, I sure don't have time to build it, and I'm guessing you don't either.

                If this was our day jobs and we were being paid for it, it would be a much different story, but this is a hobby project made open source for the world.

      • ramon156 16 hours ago ago

        > Looking up official documentation would require shipping sophisticated parsers for each language,

        You could just token match (use tree-sitter or something similar) and fetch the official docs. Keep it dead-simple so there's no way you can provide false positives (unlike what's happening rn where hallucinations will creep in).

        > It generates explanation

        Again, I don't want that. It's not a feature, it's a limitation that right now gives you fake information.

    • jagged-chisel 12 hours ago ago

      Very little “engine” required - use an existing language sever, map tokens to URLs, done.

    • nativeit 17 hours ago ago

      Oh…I guess this isn’t the documentation-surfacing droids I’m looking for.

      I could see getting actual docs being useful. Spitting out the delusions of an LLM is pretty well covered already, at least in my stack.

  • esafak 15 hours ago ago

    Since these are called "tooltips" you might want to use the term more prominently.

  • onion2k 8 hours ago ago

    Nice idea, but unless it's using up-to-date docs it's likely to introduce a lot of confusion, especially if you're reading docs to find out what changed between versions. You really need to be sending the code and the version of the software that the person reading the page is looking at.

  • kristopolous 18 hours ago ago

    interesting idea for a 1.0. Using https://context7.com/ might be the right next move here.

    Also look into https://cht.sh/

    Remember: incorrect (misleading) documentation is worse than no documentation.

    What this might be better for is use-cases that don't require extreme precision. Imagine it for learning language or reading sophisticated academic literature. For example, https://archive.org/details/pdfy-TJ7HxrAly-MtUP4B/page/n111/...

    Stuff like that is hard and every tool to make the complicated more legible I'd embrace.

    • sampsonj 17 hours ago ago

      Thank you! I will look into these! Yeah, it could be useful for providing explanations of key terms in papers or something similar.

    • dmos62 16 hours ago ago

      Those are great links.

      • kristopolous 15 hours ago ago

        cht.sh is a fairly unknown community i think ... it's really great. Try

        curl cht.sh

        it's a wiki system.

  • mmmmbbbhb 7 hours ago ago

    Firefox has built-in link previews with AI. Hold mouse1 on a link.

  • iLoveOncall 14 hours ago ago

    Great idea with a terrible implementation.

    • sampsonj 13 hours ago ago

      Can you elaborate more. It's still early and I would love feedback

      • mathfailure an hour ago ago

        It uses LLM under the hood. This is the bad part.

      • iLoveOncall 13 hours ago ago

        LLMs get interfaces wrong all the time, they make up methods that don't exist, invent parameters, etc. This needs to be 100% accurate or it is not useful.