Debug Type Errors

Purpose

Systematically diagnose and resolve Python type checking errors from pyright/mypy by categorizing error types and applying proven fix patterns.

When to Use This Skill

Use when fixing type errors with "fix pyright errors", "resolve type mismatch", "add type annotations", or "handle Optional types".

Do NOT use for pytest configuration (use pytest-configuration), import validation (use python-best-practices-fail-fast-imports), or runtime errors (type checking is static).

When to Use