mobile-app-builder
Builds native iOS and Android apps, creates cross-platform mobile applications using React Native or Flutter, configures mobile build systems, and debugs platform-specific issues including crashes, permissions, and store rejections. Use when the user asks about mobile app development, iOS or Android projects, Swift, SwiftUI, Kotlin, Jetpack Compose, React Native, Flutter, mobile UI design, push notifications, offline sync, in-app purchases, .ipa or .apk builds, or app store submission.
90
88%
Does it follow best practices?
Impact
Pending
No eval scenarios have been run
Passed
No known issues
Quality
Discovery
100%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 is an excellent skill description that covers all dimensions well. It provides specific concrete actions, comprehensive trigger terms spanning both native and cross-platform mobile development, an explicit 'Use when...' clause, and a clearly distinct niche. The description uses proper third-person voice throughout and balances comprehensiveness with clarity.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Lists multiple specific concrete actions: builds native iOS/Android apps, creates cross-platform apps using React Native/Flutter, configures mobile build systems, and debugs platform-specific issues including crashes, permissions, and store rejections. | 3 / 3 |
Completeness | Clearly answers both 'what' (builds native apps, creates cross-platform apps, configures build systems, debugs platform-specific issues) and 'when' with an explicit 'Use when...' clause listing numerous specific trigger scenarios. | 3 / 3 |
Trigger Term Quality | Excellent coverage of natural terms users would say: iOS, Android, Swift, SwiftUI, Kotlin, Jetpack Compose, React Native, Flutter, mobile UI design, push notifications, offline sync, in-app purchases, .ipa, .apk, app store submission. These are all terms a developer would naturally use. | 3 / 3 |
Distinctiveness Conflict Risk | Clearly carved out niche around mobile app development with highly specific triggers like iOS, Android, Swift, SwiftUI, Kotlin, Flutter, React Native, .ipa, .apk, and app store submission. Unlikely to conflict with web development or general coding skills. | 3 / 3 |
Total | 12 / 12 Passed |
Implementation
77%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This is a solid, comprehensive mobile development skill with strong actionability through executable code examples across four frameworks and well-defined validation checkpoints. Its main weaknesses are moderate verbosity (some generic advice Claude doesn't need) and a monolithic structure that would benefit from splitting platform-specific details into referenced files. The workflow is well-sequenced with appropriate validation steps for a complex, multi-platform domain.
Suggestions
Move platform-specific scaffolds (SwiftUI, Compose, RN, Flutter) into separate referenced files to reduce the main skill's token footprint and improve progressive disclosure.
Remove generic advice Claude already knows (e.g., 'based on team skills, performance needs, and maintenance horizon') and the framework decision tree, which is standard knowledge.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | Generally efficient but includes some unnecessary guidance Claude already knows (e.g., 'Confirm framework choice based on team skills, performance needs, and maintenance horizon' is generic advice). The framework decision tree in step 6 feels misplaced and somewhat redundant with step 1. Some bullet points could be tightened. | 2 / 3 |
Actionability | Provides fully executable code scaffolds for SwiftUI, Jetpack Compose, React Native, and Flutter, along with concrete CLI commands for building, testing, and profiling. The checklists are specific and actionable rather than vague. | 3 / 3 |
Workflow Clarity | Clear 6-step sequential workflow with explicit validation checkpoints in step 5 (checklist with specific criteria like startup time, memory leaks, permission paths) and a release checklist in step 6. The 'deny' and 'never ask again' permission testing and offline corruption checks demonstrate proper feedback loops for risky operations. | 3 / 3 |
Progressive Disclosure | The content is well-structured with clear sections, but it's fairly long and monolithic. Step 4 mentions 'consider dedicated reference files per topic' but doesn't actually link to any. Platform-specific scaffolds and release checklists could be split into referenced files to keep the main skill leaner. | 2 / 3 |
Total | 10 / 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 | |
- Repository
- OpenRoster-ai/awesome-agents
- Commit
010799b
- Reviewed
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