Test design, vulnerability assessment, and quality assurance (13.9K skills)
When the user wants to plan, design, or implement an A/B test or experiment. Also use when the user mentions "A/B test," "split test," "experiment," "test this change," "variant copy," "multivariate test," or "hypothesis." For tracking implementation, see analytics-tracking.
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Use when testing custom agent validation
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Use when testing valid hooks
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Use when testing valid model configuration
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Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser logs.
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Use when testing hooks validation
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Spring Security best practices for authn/authz, validation, CSRF, secrets, headers, rate limiting, and dependency security in Java Spring Boot services.
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Use when testing valid context and agent configuration
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Use when testing unreachable skills
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Use when testing unknown tool validation
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Use when testing boolean type validation
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Use when testing invalid model validation
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Use when testing context without agent validation
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Use when testing argument hints
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Use when testing agent without context validation
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Protocol-based dependency injection for testable Swift code — mock file system, network, and external APIs using focused protocols and Swift Testing.
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Use this skill when adding authentication, handling user input, working with secrets, creating API endpoints, or implementing payment/sensitive features. Provides comprehensive security checklist and patterns.
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Use when testing boolean type validation
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Use when testing injection limit validation
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Rust测试模式，包括单元测试、集成测试、异步测试、基于属性的测试、模拟和覆盖率。遵循TDD方法学。
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Scan your Claude Code configuration (.claude/ directory) for security vulnerabilities, misconfigurations, and injection risks using AgentShield. Checks CLAUDE.md, settings.json, MCP servers, hooks, and agent definitions.
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Use when testing per-client skill rules
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Use when testing invalid agent validation
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Use when testing invalid context validation
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