kreuzberg-dev/universal-anti-patterns
.codex/skills/universal-anti-patterns/SKILL.md
Common coding anti-patterns to avoid across all languages
$ install --global
skillsauthnpx skillsauth add kreuzberg-dev/html-to-markdown universal-anti-patternsInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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Last scanned: Apr 6, 2026, 1:43 PM13.2s1 file scanned
SKILL.md
- name:
- universal-anti-patterns
- description:
- Common coding anti-patterns to avoid across all languages
Universal Anti-Patterns
Never use:
- Any type (Python, TypeScript) - use Unknown/generics
- Class-based tests (Python) - function-based only
- Mocking internal services (any language) - use real objects
- Manual dependency management - use lock files
- Blocking I/O in async code (Python/TypeScript) - fully async paths
- Bare exception handlers - catch specific types only
- Magic numbers - extract to named constants
- Inheritance for code reuse - prefer composition
- Global state - dependency injection
- f-strings in logging - structured key=value logging
- Unwrap/panic in production code (Rust) - use Result<T, E>
- Duplication across bindings - core logic ALWAYS in Rust
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