# Code Check Optimize > Analyzes and improves code by fixing errors, adding type hints, documentation, and following best practices. Invoke when user asks to check, optimize, or improve code. - Skill: `tomevault-io/code-check-optimize` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/code-check-optimize` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/code-check-optimize/raw - Safety review: pending - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Docs & Writing - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/code-check-optimize --- # Code Check and Optimize When analyzing and improving code, perform the following actions: 1. **Fix any errors**: Identify and resolve syntax errors, logical bugs, and runtime issues. 2. **Add proper type hints**: Ensure all function arguments and return values have precise type annotations. 3. **Add documentation and comments**: - Add docstrings to modules, classes, and functions. - Add inline comments for complex logic. 4. **Improve code structure and readability**: - Refactor long functions. - Improve variable and function naming. - Ensure consistent formatting. 5. **Follow best practices and coding standards**: - Adhere to PEP 8 (for Python) or relevant style guides. - Use appropriate design patterns. --- > Converted and distributed by [TomeVault](https://tomevault.io/claim/jianzhnie) — claim your Tome and manage your conversions.