beautiful-codelisted

# Beautiful Code Standards Enforce production-grade code quality across TypeScript, Python, Go, and Rust. ## When to Use - Writing or reviewing code in TS/Python/Go/Rust - Setting up linting/CI for a project - Code quality audit or refactoring - User requests code review or style check ## Quick Reference | Language | Type Safety | Linter | Complexity | |----------|-------------|--------|------------| | TypeScript | `strict`, no `any` | ESLint + tsx-eslint | max 10 | | Python | mypy `strict`, PEP 484 | Ruff + mypy | max 10 | | Go | staticcheck | golangci-lint | max 10 | | Rust | clippy pedantic | clippy + cargo-audit | - | ## Severity Levels | Level | Description | Action | |-------|-------------|--------| | **Critical** | Security vulnerabilities | Block merge | | **Error** | Bugs, type violations, `any` | Block merge | | **Warning** | Code smells, complexity | Must address | | **Style** | Formatting, naming | Auto-fix | ## Core Rules (All Languages) ### Type Safety - No implicit any / untyped functions - No type assertions without guards - Explicit return types on public APIs ### Security - No hardcoded secrets (use gitleaks) - No eval/pickle/unsafe deserialization - Parameterized queries only - SCA scanning (npm audit/pip-audit/govulncheck/cargo-audit) ### Complexity - Max cyclomatic complexity: 10 - Max function lines: 50 - Max nesting depth: 3 - Max parameters: 5 ### Error Handling - No ignored errors (Go: no `_