BF swiftui-expert-skill
Write, review, or improve SwiftUI code following best practices for state management, view composition, performance, modern APIs, Swift concurrency, and iOS 26+ Liquid Glass adoption. Use when building new SwiftUI features, refactoring existing views, reviewing code quality, or adopting modern SwiftUI patterns.
As a process F 38/100 · Will not run — References files that are not bundled: references/state-management.md, references/modern-apis.md, references/view-structure.md
How to improve
- The text references files that are not there: add them or drop the references.
- Your own cases (evals/evals.json, 4–6 real requests with expected answers): the full check would then run those instead of a model-drafted suite.
- A spec.yaml with trigger phrases and assertions — a behaviour contract for CI; `skilltest init` writes a template.
Guard findings · 0
✓ No critical or high findings
Files scanned: 2. Evidence is masked. Grey chips explain why severity was lowered.
Against the Agent Skills spec
- warning
missing-refreference to a missing file: references/state-management.md - warning
missing-refreference to a missing file: references/modern-apis.md - warning
missing-refreference to a missing file: references/view-structure.md - warning
missing-refreference to a missing file: references/performance-patterns.md - warning
missing-refreference to a missing file: references/list-patterns.md - warning
missing-refreference to a missing file: references/animation-basics.md - warning
missing-refreference to a missing file: references/animation-transitions.md - warning
missing-refreference to a missing file: references/liquid-glass.md - warning
missing-refreference to a missing file: references/image-optimization.md - warning
missing-refreference to a missing file: references/layout-best-practices.md - warning
missing-refreference to a missing file: references/animation-advanced.md - warning
missing-refreference to a missing file: references/sheet-navigation-patterns.md - warning
missing-refreference to a missing file: references/scroll-patterns.md - warning
missing-refreference to a missing file: references/text-formatting.md - note
frontmatter-keyunknown frontmatter key "domain" - note
frontmatter-keyunknown frontmatter key "homepage"
Process rating: all ten parameters 38/100
- 0Tools and files. 14 referenced file(s) missing: references/state-management.md, references/modern-apis.md, references/view-structure.md
- 0Result and completion. Does not say what the result is
- 0Inputs and preconditions. Does not say what the process needs to start
- 0Progress reporting. Says nothing while it works
- 20When it triggers. No condition that starts the skill
- 50Failures and branches. 0 branches, has a failure section
- 85Steps. 168 steps, 1 vague phrases
- 100Consistency. Name and required fields are in place
- 100Execution cost. Instruction body is 3834 tokens
- 100Running it twice. No mutating operations
- medium Safety rules and hard prohibitions inside a skill: they belong in the system prompt, here they protect nothing
Everything here is measured from the skill text rather than judged by a model, so the numbers are checkable. A parameter weighs more when it is a more common reason for the process to stall.
Quality signals
- +5Description has no quoted example phrases that should trigger the skill
- +4Description does not say when NOT to use the skill (false activations)
- +3Output format is not stated: the model decides each time
- +1No license
- +2Single-language instructions
- +3Description length 312: enough signal without eating the budget
- +4Structure: 32 headings
- +3Step-by-step instructions: 168 items
- +4Has examples (1 code blocks)
Quality base 70; lint remarks subtract, signals add up to 100. Result: 70.