Individual skill

collapsible-sidebar

Use this when building a sidebar that collapses to an icon rail, or any element that toggles between shown and hidden. Labels fade out before display:none and fade in on show, using CSS transition-behavior allow-discrete plus @starting-style, with no JS animation library.

skills/collapsible-sidebar/SKILL.md

Source commit 1a245b1423d9959c83775181febc31b60ed4a157

What was checked

Matches the observed repository HEAD

Yes

Scanner rules are current

No

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Skill scan complete

Yes

Observed behavior

Not checked yet

Last checked

Nov 5, 2026

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