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developing-ios-apps

Develops iOS/macOS applications with XcodeGen, SwiftUI, and SPM. Handles Apple Developer signing, notarization, and CI/CD pipelines. Triggers on XcodeGen project.yml, SPM dependency issues, device deployment, code signing errors (Error -25294, keychain mismatch, adhoc fallback, EMFILE, notarization credential conflict, continueOnError), camera/AVFoundation debugging, iOS version compatibility, "Library not loaded @rpath", Electron @electron/osx-sign/@electron/notarize config, notarytool, GitHub Actions secrets in conditionals, or certificate/provisioning problems. Use when building iOS/macOS apps, fixing Xcode build failures, deploying to real devices, or configuring CI/CD signing pipelines.

94

1.23x
Quality

92%

Does it follow best practices?

Impact

96%

1.23x

Average score across 3 eval scenarios

SecuritybySnyk

Passed

No known issues

SKILL.md
Quality
Evals
Security

Quality

Content

85%

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

This is a strong, well-structured skill that covers a complex domain (iOS/macOS development, signing, CI/CD) with high actionability and clear workflows. The progressive disclosure is excellent, keeping the main file as an actionable overview while pointing to detailed references. Minor verbosity in explanatory sections (SPM dynamic framework rationale, some table descriptions) prevents a perfect conciseness score, but overall the content is highly effective.

DimensionReasoningScore

Conciseness

Generally efficient with good use of tables and code blocks, but some sections include explanations Claude would already know (e.g., 'Dynamic frameworks must be copied into the app bundle', explaining what static vs dynamic frameworks are). The 'Why This Happens' section under SPM could be trimmed. Overall mostly lean but with room for tightening.

2 / 3

Actionability

Highly actionable throughout — executable code examples (Swift, YAML, bash), specific commands, concrete configuration snippets, and copy-paste ready solutions. The XcodeGen project.yml, xcodebuild commands, camera debugging code, and Electron signing config are all directly usable.

3 / 3

Workflow Clarity

Multi-step processes are clearly sequenced with explicit validation checkpoints. The code signing section has a 5-step checklist with critical details at each step, a 'fail-fast three-layer defense' pattern, and verification commands. Device deployment has numbered first-time setup steps. The SPM dynamic framework fix has a clear ordered workflow. Camera debugging has a numbered checklist.

3 / 3

Progressive Disclosure

Excellent progressive disclosure structure. The main SKILL.md provides actionable overviews and quick references, then clearly signals one-level-deep references to detailed files (camera-avfoundation.md, apple-codesign-notarize.md, xcodegen-full.md, etc.). Internal anchor links in the Critical Warnings table connect to relevant sections. The Resources section at the bottom provides a clean navigation index.

3 / 3

Total

11

/

12

Passed

Description

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 thoroughly covers specific capabilities, includes rich trigger terms spanning error codes, tool names, and common user phrases, and explicitly states both what the skill does and when to use it. The description is dense with actionable detail without being padded with fluff, making it highly effective for skill selection among many candidates.

DimensionReasoningScore

Specificity

Lists multiple specific concrete actions: developing iOS/macOS apps with XcodeGen/SwiftUI/SPM, handling Apple Developer signing, notarization, CI/CD pipelines, camera/AVFoundation debugging, and Electron signing config. Very detailed and actionable.

3 / 3

Completeness

Clearly answers both 'what' (develops iOS/macOS apps, handles signing/notarization/CI/CD) and 'when' with an explicit 'Use when...' clause covering building apps, fixing build failures, deploying to devices, and configuring CI/CD signing pipelines. Also has a 'Triggers on' section listing specific scenarios.

3 / 3

Trigger Term Quality

Excellent coverage of natural trigger terms users would actually encounter: specific error codes (Error -25294), common error messages ('Library not loaded @rpath'), tool names (XcodeGen, notarytool, @electron/osx-sign), file names (project.yml), and natural phrases like 'code signing errors', 'device deployment', 'Xcode build failures'.

3 / 3

Distinctiveness Conflict Risk

Highly distinctive with a clear niche in Apple platform development, XcodeGen, code signing, and notarization. The specific error codes, tool names, and Apple-ecosystem terminology make it very unlikely to conflict with other skills.

3 / 3

Total

12

/

12

Passed

Validation

100%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation11 / 11 Passed

Validation for skill structure

No warnings or errors.

Repository
fernandezbaptiste/claude-code-skills
Reviewed

Table of Contents

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