Python Skill

Use when

• •Writing or refactoring Python application code
• •Debugging runtime behavior
• •Improving testability and reliability

Operating checklist

• •Identify existing patterns before adding new ones.
• •Prefer pure functions for logic; isolate side-effects.
• •Add typing on public functions and key structures.
• •Raise explicit errors; avoid silent fallback behavior.

Done criteria

• •Minimal diff
• •Clear error handling
• •Tests or validation steps described