Allure 3 plugins — can I make step descriptions always show as HTML? #3498

[cguerreroaira]

Hi, I'm evaluating Allure 3 to revamp our reporting, but I've got a few gaps I want to sort out before committing, mainly around what the new plugin system can actually do.

Context: we have a custom Python test engine (not pytest, our own runner). I've already built an adapter that generates Allure results from it.

The test steps across our test codebase carry a long, HTML-formatted description and expected result. I need these to:

Always show up without clicking anything (not hidden behind an attachment or a parameter row you have to expand)
Render as actual HTML, not get stripped down to plain text/Markdown
So my questions:

Is writing a custom presentation plugin the way to override how step descriptions/expected results render (always-expanded, HTML-safe)?
Is there any documentation for plugin development? I couldn't find any.
Any example third-party plugins doing something similar I could look at?
Thanks!