Browse reusable Agent Skills, each with a clear purpose and practical guidance.
Provides patterns for unit testing `@ExceptionHandler` and `@ControllerAdvice` in Spring Boot applications. Validates error response formatting, mocks exceptions, verifies HTTP status codes, tests field-level validation errors, and asserts custom error payloads. Use when writing Spring exception handler tests, REST API error tests, or mocking controller advice.
Provides parameterized testing patterns with JUnit 5, generates data-driven unit tests using @ParameterizedTest, @ValueSource, @CsvSource, @MethodSource. Creates tests that run the same logic with multiple input values. Use when writing data-driven Java tests, multiple test cases from single method, or boundary value analysis.
Provides patterns for testing utility classes, static methods, and helper functions. Validates pure functions, null handling, edge cases, and boundary conditions. Generates AssertJ assertions and @ParameterizedTest for string utils, math utils, validators, and collection helpers. Use when testing utils, test helpers, helper functions, static methods, or verifying utility code correctness.
Provides patterns for unit testing external REST APIs using WireMock. Stubs API responses, verifies request details, simulates failures (timeouts, 4xx/5xx errors), and validates HTTP client behavior without real network calls. Use when testing service integrations with external APIs or mocking HTTP endpoints.
Entry-point for the `@mizchi/vlmkit` toolkit — VLM-driven frontend kit covering visual regression (snapshot / diff / regression-watch), markup synthesis from screenshots, design-token / theme / a11y / i18n audits, and a 2-stage VLM + LLM CSS auto-repair loop. Use when a coding agent has edited HTML/CSS and needs to know whether the visible output changed, where it changed, and which CSS properties drove the change — or when the task is markup-from-image / token / theme audit / fix-loop driven by VLM. This skill orients you to the 5 detailed sub-skills (vrt-visual-diff / vrt-migration-eval / vrt-markup-synth / vrt-regression-watch / vrt-css-fix-loop) and the verb-group CLI; pick the matching sub-skill once the task shape is clear.
Provides patterns and configurations for running WireMock as a standalone Docker container. Generates mock HTTP endpoints, creates stub mappings for testing, validates integration scenarios, and simulates error conditions. Use when you need to mock APIs, create a mock server, stub external services, simulate third-party APIs, or fake API responses for integration testing.
Write revdep/issue.md to group packages by common error categories
当 cook-web 页面在浏览器 fullscreen 场景下需要展示基于 Dialog 的支付弹窗、设置弹窗或业务弹层时，使用本技能排查 portal 容器是否落在全屏节点外。
当 cook-web 执行 npm run build 出现 SyntaxError Unexpected token '?' 或 next/dist/compiled 报错时使用本技能，优先排查 Node 运行时版本不一致问题。
Audit cryptography implementation — algorithm choice, key sizes, KDF parameters, IV/nonce handling, signature verification, randomness, TLS configuration, and key rotation. Deeper than owasp-audit A02. Use when the user mentions 'crypto review,' 'cryptography audit,' 'encryption review,' 'KDF,' 'PBKDF2,' 'Argon2,' 'bcrypt cost,' 'IV reuse,' 'nonce reuse,' 'AES mode,' 'AES-GCM,' 'AES-ECB,' 'signature verification,' 'TLS configuration,' 'cipher suites,' 'key rotation,' 'libsodium,' 'BoringSSL,' or 'is this crypto right.'