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flutter-expert

Use when building cross-platform applications with Flutter 3+ and Dart. Invoke for widget development, Riverpod/Bloc state management, GoRouter navigation, platform-specific implementations, performance optimization.

72

Quality

88%

Does it follow best practices?

Impact

No eval scenarios have been run

SecuritybySnyk

Passed

No known issues

SKILL.md
Quality
Evals
Security

Quality

Content

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 well-structured Flutter skill with strong actionability and excellent workflow clarity featuring explicit validation checkpoints and feedback loops at every step. The code examples are executable and the troubleshooting table adds practical value. The main weaknesses are minor verbosity in introductory sections and the absence of the six referenced bundle files, which undermines the progressive disclosure strategy.

Suggestions

Remove or minimize the introductory sentence and 'When to Use This Skill' section, as these duplicate the skill description metadata and don't add actionable guidance.

Provide the six referenced files (references/riverpod-state.md, etc.) as bundle files to fulfill the progressive disclosure promise made in the reference table.

DimensionReasoningScore

Conciseness

Generally efficient but includes some unnecessary framing (e.g., 'Senior mobile engineer building high-performance cross-platform applications' is flavor text). The before/after example is useful but the 'When to Use This Skill' section largely restates what Claude would infer from context. Some constraints like 'Follow Material/Cupertino design guidelines' are generic enough to be unnecessary.

2 / 3

Actionability

Provides fully executable Dart code examples with correct Riverpod patterns, concrete CLI commands (flutter analyze, flutter test --coverage, flutter run --profile), and specific before/after comparisons. The troubleshooting table gives concrete recovery steps with actual commands.

3 / 3

Workflow Clarity

The core workflow is clearly sequenced with explicit validation checkpoints at each step (flutter analyze, flutter test, flutter test --coverage, DevTools profiling). Each step includes feedback loops with 'If X fails: do Y, re-run' patterns, which is exactly the kind of error recovery guidance needed.

3 / 3

Progressive Disclosure

The reference table with 'Load When' guidance is well-structured and clearly signals when to load each reference file. However, no bundle files were provided, meaning all six referenced files (references/riverpod-state.md, etc.) are missing. The inline content is reasonably sized but the constraints and troubleshooting sections could potentially be in reference files to keep the main skill leaner.

2 / 3

Total

10

/

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 a strong skill description that clearly identifies the technology domain (Flutter/Dart), lists specific capabilities, and provides explicit trigger guidance. It uses third-person voice appropriately and includes highly distinctive framework-specific terms that minimize conflict risk. The description is concise yet comprehensive.

DimensionReasoningScore

Specificity

Lists multiple specific concrete actions: widget development, Riverpod/Bloc state management, GoRouter navigation, platform-specific implementations, and performance optimization. These are concrete, actionable capabilities.

3 / 3

Completeness

Clearly answers both 'what' (widget development, state management, navigation, platform-specific implementations, performance optimization) and 'when' ('Use when building cross-platform applications with Flutter 3+ and Dart', 'Invoke for...'). Has explicit trigger guidance.

3 / 3

Trigger Term Quality

Includes strong natural keywords users would say: 'Flutter', 'Dart', 'widget', 'Riverpod', 'Bloc', 'GoRouter', 'cross-platform', 'navigation', 'state management', 'performance optimization'. These cover common terms developers naturally use.

3 / 3

Distinctiveness Conflict Risk

Highly distinctive with Flutter/Dart-specific terminology (Riverpod, Bloc, GoRouter, Flutter 3+). Unlikely to conflict with other skills since it targets a very specific technology stack and framework ecosystem.

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
Jeffallan/claude-skills
Reviewed

Table of Contents

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