How to choose between markdown, HTML messages, and UI plugins in the local web chat — and how to render each well. Use whenever you are about to call send_message to a web-chat channel, especially when the content has structure (rows, columns, statuses, a state machine, multiple linked things) or when the right answer is "let me show you", not "let me tell you". Do not use for Discord channels — HTML is rejected there.
How to install ui?
tkellogg/open-strix/ui
$npx -y skills add tkellogg/open-strix --skill uiInstalls into the current project.
›Prefer a prompt? Paste this to your agent
Run `npx skills use "https://github.com/tkellogg/open-strix" --skill "tkellogg/open-strix/ui"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/tkellogg/open-strix" that are relevant to the current task. Run `npx skills add "https://github.com/tkellogg/open-strix"` and select the relevant skills, then follow their instructions.
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