Universal Quality Gate Skill

Language-agnostic code quality checking system. Automatically detects project languages via marker files and runs appropriate linters, formatters, and static analysis tools for each detected language.

Overview

This skill implements a Detect, Check, Report pattern for multi-language code quality enforcement:

1. Auto-detect languages by scanning for marker files (go.mod, package.json, pyproject.toml, Cargo.toml, etc.)
2. Run language-specific lint, format, type-check, and security tools
3. Report complete results with graceful degradation for unavailable tools

Key Principles:

• Read repository CLAUDE.md files first — Project instructions override default behaviors
• Only run configured tools — Do not add new tools, languages, or checks unless explicitly requested. Keep quality checks focused on what is already defined in language_registry.json.
• Show complete output — Display full linter output, never summarize as "no issues"
• Graceful degradation — Skip unavailable tools without failing the entire gate
• Fail only on required tools — Only return non-zero exit if required tool failures occur