From abstract
Evaluates Claude Code rules in .claude/rules/ directories, validating YAML frontmatter, glob patterns, content quality, organization, and token efficiency for quality audits.
npx claudepluginhub athola/claude-night-market --plugin abstractThis skill uses the workspace's default tool permissions.
1. [Overview](#overview)
Enforces C++ Core Guidelines for writing, reviewing, and refactoring modern C++ code (C++17+), promoting RAII, immutability, type safety, and idiomatic practices.
Provides patterns for shared UI in Compose Multiplatform across Android, iOS, Desktop, and Web: state management with ViewModels/StateFlow, navigation, theming, and performance.
Implements Playwright E2E testing patterns: Page Object Model, test organization, configuration, reporters, artifacts, and CI/CD integration for stable suites.
This skill evaluates Claude Code rules in .claude/rules/ directories against quality standards. It validates YAML frontmatter, glob pattern syntax, content quality, and directory organization. Rules files support path-scoped conditional loading via paths frontmatter and unconditional rules (no paths field).
Key validations: YAML syntax errors, unquoted glob patterns, Cursor-specific fields (alwaysApply, globs), overly broad patterns, content verbosity, and naming conventions.
# Evaluate rules in current project
/rules-eval
# Evaluate specific directory
/rules-eval .claude/rules/
# Detailed analysis with recommendations
/rules-eval --detailed
.claude/rules/ for all .md files (including subdirectories)| Category | Points | Focus |
|---|---|---|
| Frontmatter Validity | 25 | YAML syntax, required fields, correct field names |
| Glob Pattern Quality | 20 | Syntax, specificity, quoting |
| Content Quality | 25 | Actionable, concise, non-conflicting |
| Organization | 15 | Naming, structure, symlink usage |
| Token Efficiency | 15 | Rule size, redundancy detection |
| Score | Level |
|---|---|
| 91-100 | Excellent - Production-ready |
| 76-90 | Good - Minor improvements possible |
| 51-75 | Basic - Needs optimization |
| 26-50 | Below Standards - Significant issues |
| 0-25 | Critical - Invalid or broken rules |
modules/frontmatter-validation.mdmodules/glob-pattern-analysis.mdmodules/content-quality-metrics.mdmodules/organization-patterns.mdscripts/rules_validator.pyabstract:skills-eval - Skill evaluation frameworkabstract:hooks-eval - Hook evaluation framework