Guidelines for modern Avalonia UI layout using Zafiro.Avalonia, emphasizing shared styles, generic components, and avoiding XAML redundancy.
32
27%
Does it follow best practices?
Impact
—
No eval scenarios have been run
Passed
No known issues
Optimize this skill with Tessl
npx tessl skill review --optimize ./skills/avalonia-layout-zafiro/SKILL.mdQuality
Discovery
32%Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.
The description identifies a specific technology stack (Avalonia UI with Zafiro.Avalonia) which provides some distinctiveness, but it reads more like a document title than a skill description. It lacks concrete actions, explicit trigger conditions, and a 'Use when...' clause, making it difficult for Claude to reliably select this skill from a larger pool.
Suggestions
Add an explicit 'Use when...' clause, e.g., 'Use when the user is building Avalonia UI applications with Zafiro.Avalonia, creating XAML views, or asking about styling and layout in Avalonia.'
List specific concrete actions the skill covers, e.g., 'Guides creation of reusable UserControls, defines shared styles and themes, structures .axaml files, and configures Zafiro icon packs and design tokens.'
Include more natural trigger terms and file extensions users might mention, such as '.axaml', 'Avalonia styling', 'Avalonia theming', 'MVVM views', or 'cross-platform desktop UI'.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Names the domain (Avalonia UI layout with Zafiro.Avalonia) and mentions some actions/concepts (shared styles, generic components, avoiding XAML redundancy), but these are more like principles than concrete actions. It doesn't list specific tasks like 'create views', 'define templates', or 'configure themes'. | 2 / 3 |
Completeness | Describes 'what' at a high level (guidelines for Avalonia UI layout) but completely lacks a 'Use when...' clause or any explicit trigger guidance for when Claude should select this skill. Per rubric rules, missing 'Use when' caps completeness at 2, and the 'what' is also weak, so this scores a 1. | 1 / 3 |
Trigger Term Quality | Includes relevant keywords like 'Avalonia UI', 'Zafiro.Avalonia', 'XAML', 'shared styles', and 'generic components' which are terms a developer might use. However, it misses common variations like '.axaml', 'UserControl', 'styling', 'theming', 'data templates', or 'layout panels'. | 2 / 3 |
Distinctiveness Conflict Risk | The mention of 'Zafiro.Avalonia' specifically is fairly distinctive and narrows the niche, but 'layout', 'shared styles', and 'generic components' could overlap with general UI or XAML skills. The specificity of the framework helps but the broad phrasing introduces some conflict risk. | 2 / 3 |
Total | 7 / 12 Passed |
Implementation
22%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This skill functions primarily as a table of contents and checklist for Avalonia UI layout with Zafiro.Avalonia, but lacks the concrete, executable guidance needed to be truly useful. It tells Claude what to do and what not to do at a high level, but never shows how with actual XAML or C# code examples. The referenced supporting files (themes.md, containers.md, etc.) are not provided in the bundle, leaving the skill as an abstract overview without substance.
Suggestions
Add concrete, executable XAML code examples for at least the most common patterns (e.g., a HeaderedContainer usage, an EdgePanel layout, an Icon extension usage) to dramatically improve actionability.
Define a clear workflow sequence for building a layout from scratch, such as: 1) Set up theme resources, 2) Choose semantic containers, 3) Apply shared styles, 4) Validate visual output — with specific commands or steps at each stage.
Provide the referenced bundle files (themes.md, containers.md, icons.md, behaviors.md, components.md) or inline the most critical content so the skill is self-contained enough to be useful.
Remove the generic 'When to Use' and 'Limitations' boilerplate sections that add no skill-specific value.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | Mostly efficient with a clean content map and checklist format, but the 'When to Use' and 'Limitations' sections are generic boilerplate that add no value. The emoji-heavy headers and 'Selective Reading Rule' add minor bloat. | 2 / 3 |
Actionability | The skill provides no concrete code examples, no executable XAML snippets, and no specific commands. It describes what to do at a high level (use semantic containers, use shared styles) but never shows how. The checklist and anti-patterns are abstract guidance without concrete implementations. | 1 / 3 |
Workflow Clarity | There is no sequenced workflow or multi-step process described. The checklist is a static verification list, not a workflow with steps, validation checkpoints, or feedback loops. There's no guidance on the order of operations for building a layout. | 1 / 3 |
Progressive Disclosure | The content map table with five referenced files (themes.md, containers.md, icons.md, behaviors.md, components.md) is well-structured with clear 'When to Read' guidance. However, no bundle files are provided, so the referenced files don't actually exist, making the progressive disclosure structure hollow. The references are one-level deep and clearly signaled, which is good structurally. | 2 / 3 |
Total | 6 / 12 Passed |
Validation
90%Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.
Validation — 10 / 11 Passed
Validation for skill structure
| Criteria | Description | Result |
|---|---|---|
frontmatter_unknown_keys | Unknown frontmatter key(s) found; consider removing or moving to metadata | Warning |
Total | 10 / 11 Passed | |
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Table of Contents
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