Audits Claude Code hooks for correctness, safety, and performance. Use when reviewing, validating, or debugging hooks, checking exit codes, error handling, or learning hook best practices.
Profile and optimize Python code using cProfile, memory profilers, and performance best practices. Use when debugging slow Python code, optimizing bottlenecks, or improving application performance.
RivetKit backend and Rivet Actor runtime guidance. Use for building, modifying, debugging, or testing Rivet Actors, registries, serverless/runner modes, deployment, or actor-based workflows.
Advanced git operations including rebase, bisect, cherry-pick, and conflict resolution. Use when rebasing branches, debugging with bisect, cherry-picking commits, or resolving complex merge conflicts.
Audit animation code for correct timing function selection. Use when reviewing motion implementations, debugging animations that feel wrong, or choosing between springs and easing. Outputs...
Expert guidance on validating, optimizing, and ensuring quality of Mapbox styles through validation, accessibility checks, and optimization. Use when preparing styles for production, debugging...
Expert guidance on validating, optimizing, and ensuring quality of Mapbox styles through validation, accessibility checks, and optimization. Use when preparing styles for production, debugging...
Designs and implements testing strategies for any codebase. Use when adding tests, improving coverage, setting up testing infrastructure, debugging test failures, or when asked about unit tests,...
Designs and implements testing strategies for any codebase. Use when adding tests, improving coverage, setting up testing infrastructure, debugging test failures, or when asked about unit tests,...
A comprehensive guide for interacting with PostgreSQL 16 databases. Use this skill for constructing standard and advanced SQL queries, optimizing performance, debugging errors, managing schema...
Develop, debug, and deploy Apify Actors - serverless cloud programs for web scraping, automation, and data processing. Use when creating new Actors, modifying existing ones, or troubleshooting Actor code.
Build, test, and explain regular expressions against sample text or files using CLI tools (rg, python) and specific regex flavors. Use when asked to craft, debug, or validate regexes or search patterns.
Use when building, debugging, or refining animations in SwiftUI iOS/macOS apps. Covers implicit/explicit animations, transitions, gesture-driven interactions, and modern iOS 17+ APIs like...
Use when building, debugging, or refining animations in SwiftUI iOS/macOS apps. Covers implicit/explicit animations, transitions, gesture-driven interactions, and modern iOS 17+ APIs like...
Run Codex CLI for deep code analysis and second-opinion reviews. Use when the user explicitly asks for Codex analysis, Codex help, or wants a second opinion from Codex on code, architecture, or...
Harbor framework for agent evaluation. Use when: (1) Running harbor commands (harbor run, harbor tasks check), (2) Creating/validating SkillsBench tasks, (3) Understanding task format or debugging...
Expert guidance on Swift Concurrency concepts. Use when working with async/await, Tasks, actors, MainActor, Sendable, isolation domains, or debugging concurrency compiler errors. Helps write safe...
Use when working with Payload projects (payload.config.ts, collections, fields, hooks, access control, Payload API). Use when debugging validation errors, security issues, relationship queries,...
Add or customize shadcn/ui components in the shared UI package. Use when adding new components from shadcn registry, updating existing component variants, customizing styling with Tailwind, or...
Test Temporal workflows with pytest, time-skipping, and mocking strategies. Covers unit testing, integration testing, replay testing, and local development setup. Use when implementing Temporal...