SemiStep

Use when building or reviewing Avalonia settings, preferences, options, or editor windows, forms, dialogs, property panes, or any AXAML where labels and controls must align across groups. Triggers on control alignment, ragged card widths, shared label/control columns, right-alignment consistency, numeric-input alignment, and dialog sizing/clipping. Avalonia 12+ (uses Grid shared-size scope + ColumnSpacing/RowSpacing).

Use when theming or restyling an Avalonia desktop app toward a JetBrains/IntelliJ "New UI" look (flat, dense, neutral grays, one restrained blue accent, light+dark). Covers the JetBrains Int UI design tokens (color ramps, typography, dimensions, radii), and how to realize them in Avalonia 12 via Semi.Avalonia + token overrides + Inter/JetBrains Mono + theme variants. Triggers on theme/palette/dark-mode/accent/font/corner-radius/design-token work. Distinct from avalonia-form-layout (which is about alignment/spacing inside a single form).

Use this skill when the user wants to create a release. Checks working tree, proposes a tag message based on recent commits, gets user approval, then commits, tags, pushes, and monitors CI. Never releases without explicit user approval.

Load this skill whenever you need information about Avalonia UI components, controls, layouts, styles, animations, bindings, or any other Avalonia API. Use the GitHub MCP tools to read docs from the AvaloniaUI/avalonia-docs repository. Fall back to WebFetch only if the topic is not covered there.