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Found 1,064 Skills
Analyzes legacy COBOL programs and JCL jobs to assist with migration to modern Java applications. Extracts business logic, identifies dependencies, generates migration reports, and creates Java implementation strategies. Use when working with mainframe migration, COBOL analysis, legacy system modernization, JCL workflows, or when users mention COBOL to Java conversion, analyzing .cbl/.CBL/.cob files, working with copybooks, or planning Java service implementations from COBOL programs.
TypeScript/JavaScript project workflow guidelines using Bun package manager. Triggers on `.ts`, `.tsx`, `bun`, `package.json`, TypeScript. Covers bun run, bun install, bun add, tsconfig.json patterns, ESM/CommonJS modules, type safety, Biome formatting, naming conventions (PascalCase, camelCase, UPPER_SNAKE_CASE), project structure, error handling, environment variables, async patterns, and code quality tools. Activate when working with TypeScript files (.ts, .tsx), JavaScript files (.js, .jsx), Bun projects, tsconfig.json, package.json, bun.lock, or Bun-specific tooling.
Use when developing custom Checkstyle checks, filters, and plugin integrations for project-specific Java code standards.
Knip dead code detection best practices for JavaScript and TypeScript projects. Use when configuring Knip, analyzing unused code, setting up CI integration, or cleaning up codebases. Triggers on knip.json, dead code, unused exports, unused dependencies, bundle optimization.
Explains JavaScript bundling, code splitting, chunking strategies, tree shaking, and build pipelines. Use when optimizing bundle size, understanding how modern build tools work, configuring Webpack/Vite/esbuild, or debugging build output.
Stimulus JS framework for Symfony UX. Use when building client-side interactivity with data attributes, creating controllers for DOM manipulation, handling user events, managing component state, or integrating with Symfony's StimulusBundle and AssetMapper. Triggers - stimulus controller, data-controller, data-action, data-target, frontend interactivity, JavaScript behavior, Symfony UX frontend, toggle, dropdown, modal JS, tabs JS, clipboard, chart controller, datepicker, autocomplete JS, lazy controller, stimulusFetch, outlets, keyboard shortcut, global event listener. Also trigger when the user wants to add JavaScript behavior to server-rendered HTML, wrap a third-party JS library, or build client-only interactions that don't need a server round-trip.
Review TypeScript/JavaScript code for type safety, async patterns, error handling, and module design. Atomic skill; output is a findings list.
Java Web dead code cleanup and refactoring expert. It safely identifies and removes dead code, with testing and verification performed at every step. Trigger conditions: User requests for dead code cleanup, refactoring optimization, and unused code removal.
Prototype pollution testing for JavaScript stacks. Use when user input is merged into objects (query parsers, JSON bodies, deep assign), when configuring libraries via untrusted keys, or when hunting RCE gadgets via polluted Object.prototype in Node or the browser.
JNDI injection playbook. Use when Java applications perform JNDI lookups with attacker-controlled names, especially via Log4j2, Spring, or any code path reaching InitialContext.lookup().
JavaScript runtime performance patterns for hot paths, loops, DOM operations, caching, and data structures. Framework-agnostic.
Generates production-grade JUnit 5 unit and integration tests in Java. Covers assertions, parameterized tests, lifecycle hooks, mocking with Mockito, and nested tests. Use when user mentions "JUnit", "JUnit 5", "@Test", "assertEquals", "Assertions", "Java unit test". Triggers on: "JUnit", "@Test", "assertEquals", "Java test", "unit test Java".