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add-dart-lint-validation-rule

Instructions for adding a new validation rule and CLI flag to dart_skills_lint. Use this skill when asked to create a new rule that validates aspects of skills (like frontmatter metadata).

75

Quality

95%

Does it follow best practices?

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SecuritybySnyk

Passed

No findings from the security scan

SKILL.md
Quality
Evals
Security

Quality

Content

100%

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

An exemplary instruction-and-code skill: lean, fully executable, and clearly sequenced with a verification checklist. It earns top marks across all content dimensions.

DimensionReasoningScore

Conciseness

The body is dominated by executable code, exact file paths, and concrete commands with minimal prose; it assumes Claude's competence and does not pad with basic Dart or linting concepts.

3 / 3

Actionability

Provides copy-paste-ready Dart snippets for the rule class, registry registration, and tests, plus concrete commands ("dart format .", "dart analyze --fatal-infos", "dart test") with specific file paths.

3 / 3

Workflow Clarity

Clear numbered sequence (create class → register → handle disabled rules → test → document) capped by a 'Checklist Before Submitting PR' with explicit verification commands serving as validation checkpoints.

3 / 3

Progressive Disclosure

No bundle files are present and the skill is a single cohesive task; the body is well-organized into clearly-headed sections (implementation, testing, documentation, checklist) with easy in-document navigation.

3 / 3

Total

12

/

12

Passed

Description

90%

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

A strong, third-person description with an explicit 'Use this skill when...' trigger and a clear, narrow niche. Its only weakness is specificity: it describes one core task rather than enumerating multiple concrete actions.

Suggestions

Expand the 'what' clause to list the distinct sub-actions concretely (e.g., create the rule class, register it in the rule registry, expose it as a CLI flag, and document it) to lift specificity to the top anchor.

DimensionReasoningScore

Specificity

Names the domain ("dart_skills_lint") and concrete actions ("adding a new validation rule and CLI flag", "create a new rule that validates aspects of skills"), but it is essentially one task described a couple of ways rather than a list of multiple distinct actions.

2 / 3

Completeness

Explicitly answers both what ("Instructions for adding a new validation rule and CLI flag to dart_skills_lint") and when ("Use this skill when asked to create a new rule...") with an explicit trigger clause.

3 / 3

Trigger Term Quality

Includes natural developer-facing terms a user would actually say — "validation rule", "CLI flag", "new rule", "frontmatter metadata" — giving good coverage of the relevant vocabulary.

3 / 3

Distinctiveness Conflict Risk

Highly specific to the dart_skills_lint package and the act of adding a lint rule, giving it a clear niche unlikely to trigger for unrelated skills.

3 / 3

Total

11

/

12

Passed

Validation

87%

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

Validation14 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

metadata_version

'metadata.version' is missing

Warning

metadata_field

'metadata' should map string keys to string values

Warning

Total

14

/

16

Passed

Repository
flutter/agent-plugins
Reviewed

Table of Contents

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