Util Resolve Serviceresult Errors

This skill diagnoses and resolves Python type checking errors by categorizing them into patterns—missing annotations, type mismatches, Optional handling, generics, and attribute issues—then applies targeted fixes. It works with pyright and mypy output, includes automation scripts for batch corrections, and guides you through verification to maintain strict type safety.

Skill Developer is a meta-skill for building new Claude Code skills from the ground up or converting existing scripts. It provides templates, step-by-step guidance for wrapping MCP pipelines, and configuration patterns to enable Claude's automatic skill discovery.

Test Setup Async provides patterns for testing Python async functions using pytest-asyncio, AsyncMock, and async fixtures. It covers fixture creation with cleanup, mocking async methods with side effects, testing async context managers, and verifying async calls with assertions.

Factory fixtures are pytest fixtures that return callable functions, enabling dynamic test setup with customizable parameters. This skill teaches you to eliminate test duplication while maintaining flexibility for edge cases through standard patterns like mock service factories, settings factories, and real instance factories with mock dependencies.

Learn a decision-driven framework for mocking in pytest that separates external boundaries from business logic. This skill covers autospec enforcement, async mock patterns, reusable mock factories, and a clear matrix for what to mock versus what to test directly. Master the golden rule—mock external dependencies, test the unit in isolation—to write tests that survive refactoring.

Setup Pytest Fixtures guides you through building reusable test fixtures with factory patterns, async support, and proper conftest organization. Learn to structure fixtures across centralized utilities and layer-specific configurations, then apply them across your test suite.