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Found 1,064 Skills
Systematic JavaScript/TypeScript performance audit and optimization using V8 profiling and runtime patterns. Use when (1) Users say 'optimize performance', 'audit performance', 'this is slow', 'reduce allocations', 'improve speed', 'check performance', (2) Analyzing code for performance anti-patterns (O(n²) complexity, excessive allocations, I/O blocking, template literal waste), (3) Optimizing functions regardless of current usage context - utilities, formatters, parsers are often called in hot paths even when they appear simple, (4) Fixing V8 deoptimization (monomorphic/polymorphic issues, inline caching). Audits ALL code for anti-patterns and reports findings with expected gains. Covers loops, caching, batching, memory locality, algorithmic complexity fixes with ❌/✅ patterns.
Analyzes legacy RPG (Report Program Generator) programs from AS/400 and IBM i systems for migration to modern Java applications. Extracts business logic from RPG III/IV/ILE source code, identifies data structures (D-specs), file operations (F-specs), program dependencies (CALLB/CALLP), and converts RPG constructs to Java equivalents. Generates migration reports, complexity estimates, and Java implementation strategies with POJO classes, JPA entities, and service methods. Use when modernizing AS/400 or IBM i legacy systems, analyzing RPG source files (.rpg, .rpgle, .RPGLE), converting RPG to Java, mapping data specifications to Java classes, planning legacy system migration, or when user mentions RPG analysis, Report Program Generator, RPG III/IV/ILE, AS/400 modernization, IBM i migration, packed decimal conversion, or mainframe application rewrite.
Expert guidance for GraalVM native image development with Java frameworks, build optimization, and high-performance application deployment
Create custom GitHub Actions (composite, Docker, or JavaScript). Use when building reusable actions, creating custom workflow steps, or packaging logic for distribution. Trigger words include "create action", "custom action", "build action", "composite action", "Docker action".
Assists users with updating Tauri dependencies including the Tauri CLI, Rust crates, JavaScript packages, and checking for outdated versions to upgrade to the latest version.
Bun JavaScript/TypeScript runtime and all-in-one toolkit. Covers runtime, package manager, bundler, test runner, HTTP server, WebSockets, SQLite, S3, Redis, file I/O, shell scripting, FFI, Markdown parser. Keywords: bun, bunx, bun install, bun run, bun test, bun build, Bun.serve, Bun.file, bun:sqlite, Bun.markdown.
Use when applying Biome's linting capabilities, rule categories, and code quality enforcement to JavaScript/TypeScript projects.
Expert guidelines for building performant animations with Motion (formerly Motion One) vanilla JavaScript animation library
Run SpotBugs with Find Security Bugs plugin on Java code. Detects injection flaws, XXE, insecure crypto, SSRF, deserialization, and other JVM security bugs.
Skill for creating Lucid agents with JavaScript handler code. Shows three options: MCP tool with SIWE, SDK with your wallet, or viem with custom signing. Teaches JS handler code contract, paymentsConfig, and identityConfig. Activate when: user wants to create Lucid agents with inline JS handlers (no generate API, no self-hosting). The agent will be hosted on the Lucid platform.
Debug TypeScript/JavaScript with Bun inspector
IntelliJ-IDEA MCP provides powerful IDE features including running tests, code analysis, refactoring, search, and project navigation. Use this when you need accurate Java code analysis (avoiding LSP false positives), running tests via IDEA configurations, refactoring symbols, or exploring codebase structure. Key commands: execute_run_configuration (run tests), get_file_problems (accurate errors/warnings), search_in_files_by_text (search code), list_directory_tree (view structure), get_file_text_by_path (read files), rename_refactoring (safe refactoring), execute_terminal_command (run shell commands).