---

name: applying-sun-lab-style description: >- Applies Sun Lab Python coding conventions when writing, reviewing, or refactoring code. Covers .py files, docstrings, type annotations, naming conventions, README.md files, git commit messages, and Claude skill files. Use when writing new code, modifying existing code, reviewing pull requests, creating documentation, writing commit messages, or when the user asks about coding standards.

Sun Lab Style Guide

Applies Sun Lab coding and documentation conventions.

You MUST read the appropriate style guide and apply its conventions when writing or modifying any code, documentation, commits, or skills. You MUST verify your changes against the style guide's checklist before submitting.

---

Workflow Selection

CRITICAL: You MUST read the appropriate guide before performing any task. The quick reference section below is insufficient for compliance. Each guide contains detailed rules and verification checklists that you MUST follow.

After reading the appropriate guide:

1. Apply all conventions from that guide
2. Verify against the guide's checklist before submitting

Do not skip reading the guide. The quick reference is only a reminder for frequently used rules, not a substitute for the full guide.

---

Style Guides

---

Quick Reference (Not a Substitute for Full Guides)

These are reminders only. You MUST read the full guide for your task before proceeding.

Python Code (includes docstrings and inline comments)

• Docstrings: Google-style with Args, Returns, Raises, Notes, Attributes sections
• Prose Over Lists: Use prose in all documentation; bullet lists are forbidden in docstrings
• Inline Comments: Third person imperative, above the code, explain non-obvious logic
• Naming: Full words (position not pos), private members _underscore
• Type Annotations: All parameters and returns; always specify dtype for arrays
• Error Handling: Use console.error() from ataraxis_base_utilities
• Line Length: Maximum 120 characters

Commit Messages

• Start with past tense verb: Added, Fixed, Updated, Refactored, Removed
• Header line ≤ 72 characters
• End with a period
• Multi-line commits: blank line after header, then -- prefixed bullets

README Files

• Third-person voice throughout
• Present tense as default

Skills & Templates

• SKILL.md frontmatter: name (gerund form), description (third person)
• Line length ≤ 120 characters