feat: add webui-dev skill for webui app development#85
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mohamedmansour merged 1 commit intomainfrom Mar 8, 2026
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Add .github/skills/webui-dev/SKILL.md documenting the full workflow for
building interactive WebUI example apps with FAST-HTML hydration.
Covers:
- Project structure (package.json, tsconfig.json, directory layout)
- Template syntax: signal interpolation ({{}}), raw interpolation ({{{)}}),
loop rendering (<for>), conditional rendering (<if>), boolean attributes
(?attr), and complex pass-through attributes (:attr)
- FAST-HTML component patterns: RenderableFASTElement mixin, @attr and
@observable decorators, prepare() hydration hook, defineAsync registration
- Event handling: @event template bindings, \() for child-to-parent
custom events, f-ref template refs for direct DOM access
- Hydration bootstrap: TemplateElement.options() configuration with
observerMap, performance marks, and f-template activation
- State management via data/state.json for SSR
- CSS design tokens with :root custom properties and var() token hoisting
- Dev workflow: cargo xtask dev, esbuild bundling, webui build --plugin=fast
- Key gotcha: <template shadowrootmode='open'> wrapper is optional —
only needed when attaching root-level @event bindings
janechu
approved these changes
Mar 8, 2026
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Add .github/skills/webui-dev/SKILL.md documenting the full workflow for building interactive WebUI example apps with FAST-HTML hydration.
Covers: