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Posted by pretext 13 hours ago

Using Claude Code: The unreasonable effectiveness of HTML(twitter.com)
Examples: https://thariqs.github.io/html-effectiveness/

Related: https://simonwillison.net/2026/May/8/unreasonable-effectiven...

330 points | 204 commentspage 8
Kwpolska 11 hours ago|
I guess the author has never heard of Markdown editors with a preview feature, and doesn't know that the Claude Code VS Code plugin opens plans in preview mode.
weird-eye-issue 11 hours ago|
Are you just trying to pretend that Markdown is as rich as HTML and that all the use cases that they described are possible with Markdown?
mark_and_sweep 10 hours ago|||
Technically, yes. Markdown was always intended to be used for creating HTML and thus allows you to use HTML inline (with some minor caveats, see: https://daringfireball.net/projects/markdown/syntax#html).

If you rename a .html file to .md, your markdown viewer should render it just the same as your browser did.

jason1cho 11 hours ago|||
Markdown was a hype in late 2010s that has cooled down due to chatbots.

In turn, chatbots pump up markdown by making it the default output format.

albedoa 5 hours ago|||
> has cooled down due to chatbots.

What in the world.

k4rli 11 hours ago|||
I've felt the opposite. With MD being the preferred planning+documentation output for LLMs, the time of "hype" seems to be now. It seemed just a few years ago that devs hated writing properly formatted markdown.
whatever1 12 hours ago||
Do we have local first html renderers that don’t complain about cors and wrong file addresses? I don’t want to spin up a server just to open an HTML file
koolala 12 hours ago||
The unreasonable effectiveness of HtmlX.
imbnwa 11 hours ago||
Feels like markdown is token-efficient since its abbreviating HTML tags. Think about a large table. Also, HTML can't be especially rendered inside, say, Neovim, so now interacting with an LLM interface gravitates towards GUIs. Good for accessibility, I guess, there's that. Maybe the need for token efficiency will finally realize my dream of writing Slim[0], or some such, straight to the browser, full native compat.

[0]https://slim-template.github.io/

mxkuzn 1 hour ago||
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jacktu 1 hour ago||
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OfekSh 2 hours ago||
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nave94hn 2 hours ago||
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vdelpuerto 6 hours ago||
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eddyaipt 7 hours ago|
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