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hig-foundations

Apple Human Interface Guidelines design foundations.

44

Quality

44%

Does it follow best practices?

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SecuritybySnyk

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tessl review fix ./plugins/antigravity-bundle-apple-platform-design/skills/hig-foundations/SKILL.md

The canonical home for this skill is hig-foundations in administrakt0r/AI-Agents-Safe-Coding-Skills

SKILL.md
Quality
Evals
Security

Quality

Content

67%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

This is a well-structured design reference skill with strong progressive disclosure through its comprehensive reference table and clear principle enumeration. Its main weakness is the lack of concrete code examples despite explicitly promising them in the Output Format section, which undermines actionability. The content is mostly concise and well-organized, though the trailing 'When to Use' section adds no value.

Suggestions

Add at least 2-3 concrete SwiftUI/UIKit code snippets demonstrating key principles (e.g., using semantic colors, implementing Dynamic Type) to match the Output Format promise of 'concrete code patterns'.

Remove the vacuous 'When to Use' section at the bottom, which adds no information.

DimensionReasoningScore

Conciseness

The content is mostly efficient and well-structured. The key principles are concise and actionable. Minor over-explanation exists in the 'Applying Foundations Together' section which restates things already implied by the principles, and the 'When to Use' section at the bottom is vacuous filler. The reference table is appropriately dense.

4 / 5

Actionability

The skill provides clear design principles and a useful reference index, but lacks concrete code examples despite the Output Format section explicitly calling for 'concrete code patterns (SwiftUI/UIKit/AppKit).' The guidance is specific enough to direct behavior but remains at the level of design direction rather than executable implementation. The 'Questions to Ask' section is helpful but the skill itself doesn't demonstrate how to apply the principles with concrete examples.

3 / 5

Workflow Clarity

For a reference/guidance skill (not a multi-step destructive operation), the workflow is reasonably clear: check for context file first, apply principles, consult references, produce output in specified format, ask clarifying questions. The 'Applying Foundations Together' section provides useful guidance on how principles interact. The Output Format section gives a clear 4-step structure for responses. Minor gap: no explicit decision tree for when to consult which reference.

4 / 5

Progressive Disclosure

Excellent reference table with 18 clearly signaled one-level-deep references, each with topic and key content summary. The overview stays concise while pointing to detailed materials. However, since no bundle files were provided, we cannot verify the referenced files exist. The structure is well-organized with clear sections. Minor issue: the 'Related Skills' section references other skills without paths or clear navigation.

4 / 5

Total

15

/

20

Passed

Description

22%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

This description is essentially a topic label rather than a functional skill description. It names the domain (Apple HIG design foundations) but completely lacks any concrete actions, capabilities, or trigger guidance. Without specifying what the skill does or when Claude should select it, this description would perform poorly in a multi-skill selection scenario.

Suggestions

Add concrete actions describing what the skill does, e.g., 'Provides guidance on Apple HIG design principles including typography, color, spacing, layout, and iconography.'

Add an explicit 'Use when...' clause with trigger terms, e.g., 'Use when the user asks about Apple design guidelines, HIG, iOS/macOS UI patterns, or Apple design foundations.'

Include natural synonyms and abbreviations users might use, such as 'HIG', 'iOS design', 'macOS UI', 'Apple design system', 'SwiftUI design patterns'.

DimensionReasoningScore

Specificity

The description names a domain ('Apple Human Interface Guidelines design foundations') but provides no concrete actions whatsoever. It doesn't say what the skill does—no verbs, no capabilities listed.

1 / 5

Completeness

There is no 'what does this do' (no actions described) and no 'when should Claude use it' clause. Both are missing entirely, leaving only a topic label.

1 / 5

Trigger Term Quality

It includes 'Apple Human Interface Guidelines' and 'design foundations' which are relevant keywords a user might mention, but it lacks natural synonyms like 'HIG', 'iOS design', 'macOS UI', 'Apple design system', or 'UI guidelines'.

3 / 5

Distinctiveness Conflict Risk

'Apple Human Interface Guidelines' is a fairly specific domain that narrows the scope, but 'design foundations' is vague and could overlap with other design-related skills. Without concrete actions or triggers, the risk of misselection remains moderate.

3 / 5

Total

8

/

20

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.

Validation10 / 11 Passed

Validation for skill structure

CriteriaDescriptionResult

frontmatter_unknown_keys

Unknown frontmatter key(s) found; consider removing or moving to metadata

Warning

Total

10

/

11

Passed

Repository
administrakt0r/AI-Agents-Safe-Coding-Skills
Reviewed

Table of Contents

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