單元測試

Developing, testing, and deploying Streamlit data applications on Snowflake. Use this skill when you're building interactive data apps, setting up local development environments, testing with pytest or Playwright, or deploying apps to Snowflake using Streamlit in Snowflake.

Browser testing, web scraping, and UI validation using Playwright MCP. Use this skill when you need to test Streamlit apps, validate web interfaces, test responsive design, check accessibility, or automate browser interactions through MCP tools.

Internationalization (i18n) and localization (l10n) testing for global products including translations, locale formats, RTL languages, and cultural appropriateness. Use when launching in new markets or building multi-language products.

Testing in production with feature flags, canary deployments, synthetic monitoring, and chaos engineering. Use when validating real-world behavior, implementing safe deployments, or ensuring production resilience.

Strategic test data generation, management, and privacy compliance. Use when creating test data, handling PII, ensuring GDPR/CCPA compliance, or scaling data generation for realistic testing scenarios.

Apply comprehensive API testing patterns including contract testing, REST/GraphQL testing, and integration testing. Use when testing APIs, microservices, or designing API test strategies.

Database schema validation, data integrity testing, migration testing, transaction isolation, and query performance. Use when testing data persistence, ensuring referential integrity, or validating database migrations.

Monitor dbt execution using the dbt Artifacts package. Use this skill when you need to track test and model execution history, analyze run patterns over time, monitor data quality metrics, or enable programmatic access to dbt execution metadata across any dbt version or platform.

Apply context-driven testing principles where practices are chosen based on project context, not universal "best practices". Use when making testing decisions, questioning dogma, or adapting approaches to specific project needs.

Advanced visual regression testing with pixel-perfect comparison, AI-powered diff analysis, responsive design validation, and cross-browser visual consistency. Use when detecting UI regressions, validating designs, or ensuring visual consistency.

Run Tecton plan and tests via Pants in the data-science repo. Handles long-running commands with proper output capture to avoid truncation.

Use when running or gating tests; standardizes uv run commands and JSON checks.

Use when writing or updating tests (Python, JS/Hoot, integration, or tours).

Comprehensive guide for creating REST API endpoints in Bruno. Use when working with Bruno collections, creating .bru files, configuring API endpoints, setting up authentication, writing pre/post-request scripts, organizing Bruno collections, or testing REST APIs with Bruno.

Reusable QA harness for testing LLM agents and personas. Defines test suites with must-ace tasks, refusal edge cases, scoring rubrics, and regression protocols. Use when validating agent behavior, testing prompts after changes, or establishing quality baselines.

iOS app building and testing automation using Xcode simulator. Build, run, test iOS apps, capture screenshots, automate UI testing with XCTest, and integrate with Claude Code for mobile development workflows on macOS.

Expert refactoring specialist mastering safe code transformation techniques and design pattern application. Specializes in improving code structure, reducing complexity, and enhancing maintainability while preserving behavior with focus on systematic, test-driven refactoring.

Technical writing patterns for README files, API documentation, architecture decision records (ADRs), changelogs, contributing guides, code comments, and docs-as-code workflows. Covers documentation structure, style guides, Markdown best practices, and documentation testing.

Systematic research methodology for building comprehensive, current knowledge on any topic. Requires web_search tool. Use when questions require thorough investigation, recent developments post-cutoff, synthesis across multiple sources, or when Claude's knowledge may be outdated or incomplete. Triggered by "Research", "Investigate", "What's current on", "Latest info on", complex queries needing validation, or technical topics with recent changes.

Master orchestration for routing QA, testing, DevOps, observability, and git workflow questions through 15+ operational skills