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Found 1,096 Skills
Embeds and controls web content in SwiftUI with WebKit for SwiftUI, including WebView, WebPage, navigation policies, JavaScript execution, observable page state, link interception, local HTML or data loading, and custom URL schemes. Use when building iOS 26+ article/detail views, help centers, in-app documentation, or other embedded web experiences backed by HTML, CSS, and JavaScript.
Use when you need to review, improve, or refactor Java code for object-oriented design quality — including applying SOLID, DRY, and YAGNI principles, improving class and interface design, fixing OOP concept misuse (encapsulation, inheritance, polymorphism), identifying and resolving code smells (God Class, Feature Envy, Data Clumps), or improving object creation patterns, method design, and exception handling. Part of the skills-for-java project
Use when you need to implement or improve Java logging and observability — including selecting SLF4J with Logback/Log4j2, applying proper log levels (ERROR, WARN, INFO, DEBUG, TRACE), parameterized logging, secure logging without sensitive data exposure, environment-specific configuration, log aggregation and monitoring, or validating logging through tests. Part of the skills-for-java project
Use when you need to apply functional programming principles in Java — including writing immutable objects and Records, pure functions, functional interfaces, lambda expressions, Stream API pipelines, Optional for null safety, function composition, higher-order functions, pattern matching for instanceof and switch, sealed classes/interfaces for controlled hierarchies, Stream Gatherers for custom operations, currying/partial application, effect boundary separation, and concurrent-safe functional patterns. Part of the skills-for-java project
Use when you need to set up JMeter performance testing for a Java project — including creating the run-jmeter.sh script from the exact template, configuring load tests with loops, threads, and ramp-up, or running performance tests from the project root with custom or default settings. Part of the skills-for-java project
Detect and exploit JavaScript prototype pollution vulnerabilities on both client-side and server-side applications to achieve XSS, RCE, and authentication bypass through property injection.
Use this skill to implement Camunda 8 job workers in Java, Camunda Spring Boot, or TypeScript — handler code that activates jobs from a service task, runs business logic, and completes, fails, or throws a BPMN error. Use for: choosing between camunda-client-java, the Camunda Spring Boot Starter, and `@camunda8/orchestration-cluster-api`; wiring a `@JobWorker` method or `createJobWorker(...)` call to a BPMN `zeebe:taskDefinition type`; signalling complete / fail / BPMN error; idempotency, retries, back-off, auto-complete; Spring Boot 4 vs 3 starter on Camunda 8.9+. Do not use for: deciding worker-vs-connector (use camunda-development), authoring the BPMN task (use camunda-bpmn), configuring an OOTB connector (use camunda-connectors), or building a custom connector (use camunda-connectors-development). **Workflow skill** — pick an SDK, declare a handler against a `zeebe:taskDefinition type`, handle complete / fail / BPMN-error cases. Java, Spring, and TypeScript on Camunda 8.8+.
Verify technical accuracy of JavaScript concept pages by checking code examples, MDN/ECMAScript compliance, and external resources to prevent misinformation
Core JavaScript fundamentals including variables, data types, operators, control flow, and basic syntax. Essential foundation for all JavaScript development.
Learn the rules of packlets for managing a JavaScript/TypeScript project. Use this skill whenever a user mentions packlets or when working in a project with packlets (src/packlets) directory.
This skill should be used when the user asks to "write a business rule", "create a script include", "write server-side code", "fix SyntaxError", "background script", "scheduled job", "workflow script", or any ServiceNow server-side JavaScript development.
Modern JavaScript/TypeScript testing with Vitest including mocking and coverage.