Debugging
Find and fix bugs, error analysis
tester
by olehsvyrydov
Rob - Senior QA Engineer specializing in black-box testing and feature validation. Use when testing features against acceptance criteria, validating user requirements, creating test reports, or performing exploratory testing. Also responds to 'Rob' or /rob command.
general-skill-refiner
by Przemocny
Analyzes and refines agent skills by identifying quality issues, prioritizing fixes (MUST/SHOULD/NICE), gathering user feedback, and implementing improvements. Checks for common problems like time estimates, oversized SKILL.md files, poor structure, redundant content, missing examples, and unclear workflows. Use when reviewing, improving, refactoring, or auditing existing skills. Triggers include "review skill", "improve skill", "refactor skill", "skill quality", "audit skill", "fix skill", "optimize skill", "analyze skill".
pull-request-skill
by marcioaltoe
Pull Request review manager for CodeRabbit AI. ALWAYS use when user needs to work with PR reviews, fix CodeRabbit issues, or check review status. Downloads, organizes, and helps resolve review comments systematically. Examples - "download PR reviews", "fix CodeRabbit issues for PR 123", "check review status", "organize review comments by severity".
git-commit
by marcioaltoe
Automatically analyzes code changes and creates git commits with conventional commit messages when the user indicates they want to save/commit their work. Use when user mentions committing, saving work, or wants changes recorded in git history. Examples - "commit these changes", "save this work", "I'm done with this feature, let's commit", "create a commit for the auth updates".
hydration-guardian
by oakoss
Ensures zero-mismatch integrity between server-rendered HTML and client-side React trees. Use when debugging hydration errors, fixing text content mismatches, handling browser extension DOM pollution, implementing selective hydration with Suspense, using the React 19 use() hook for deterministic server-to-client data bridges, or applying Next.js use cache for data drift prevention. Use for hydration mismatch, SSR, hydrateRoot, suppressHydrationWarning, onRecoverableError, two-pass rendering.
error-handling-patterns
by marcioaltoe
Error handling patterns including exceptions, Result pattern, validation strategies, retry logic, and circuit breakers. ALWAYS use when implementing error handling in backend code, APIs, use cases, or validation logic. Use proactively for robust error handling, recovery mechanisms, and failure scenarios. Examples - "handle errors", "Result pattern", "throw exception", "validate input", "error recovery", "retry logic", "circuit breaker", "exception hierarchy".
git-workflow
by oakoss
'Designs git workflows covering branching strategies, trunk-based development, stacked changes, conventional commits, CI/CD pipelines, and repository hygiene. Use when setting up branching models, writing commit messages, configuring GitHub Actions, managing stacked PRs, cleaning stale branches, creating issue templates, or recovering lost commits.'
ux-antipatterns
by cassiozen
Use when reviewing, building, or refactoring frontend UI — components, pages, forms, or interactive flows. Triggers on code review, pull requests, and new feature implementation involving user-facing interfaces.
debug:vue
by SnakeO
Debug Vue.js 3 application issues systematically. This skill helps diagnose and resolve Vue-specific problems including reactivity failures with ref/reactive, component update issues, Pinia store state management problems, computed property caching bugs, Teleport/Suspense rendering issues, and SSR hydration mismatches. Provides Vue DevTools usage, console debugging techniques, Vite dev server troubleshooting, and vue-tsc type checking guidance.
debug:nextjs
by SnakeO
Debug Next.js issues systematically. Use when encountering SSR errors, hydration mismatches like "Text content did not match", routing issues with App Router or Pages Router, build failures, dynamic import problems, API route errors, middleware issues, caching and revalidation problems, or performance bottlenecks. Covers both Pages Router and App Router architectures.
debug:flutter
by SnakeO
Debug Flutter applications systematically with this comprehensive troubleshooting skill. Covers RenderFlex overflow errors, setState() after dispose() issues, null check operator failures, platform channel problems, build context errors, and hot reload failures. Provides structured four-phase debugging methodology with Flutter DevTools, widget inspector, performance profiling, and platform-specific debugging for Android, iOS, and web targets.
debug:angular
by SnakeO
Debug Angular applications systematically with expert-level diagnostic techniques. This skill provides comprehensive guidance for troubleshooting dependency injection errors, change detection issues (NG0100), RxJS subscription leaks, lazy loading failures, zone.js problems, and common Angular runtime errors. Includes structured four-phase debugging methodology, Angular DevTools usage, console debugging utilities (ng.probe), and performance profiling strategies for modern Angular applications.
debug:spring-boot
by SnakeO
Debug Spring Boot issues systematically. Use when encountering bean errors like NoSuchBeanDefinitionException, circular dependency issues, application startup failures, JPA/Hibernate problems including LazyInitializationException and N+1 queries, security misconfigurations causing 403 Forbidden errors, property binding failures, CSRF token issues, or any Spring Boot application requiring diagnosis with Actuator endpoints and JVM debugging.
debug:docker
by SnakeO
Debug Docker containers, images, and infrastructure with systematic diagnostic techniques. This skill provides comprehensive guidance for troubleshooting container exit codes, OOM kills, image build failures, networking issues, volume mount problems, and permission errors. Covers four-phase debugging methodology from quick assessment to deep analysis, essential Docker commands, debug container techniques for minimal images, and platform-specific troubleshooting for Windows, Mac, and Linux.
debug:nestjs
by SnakeO
Debug NestJS issues systematically. Use when encountering dependency injection errors like "Nest can't resolve dependencies", module import issues, circular dependencies between services or modules, guard and interceptor problems, decorator configuration issues, microservice communication errors, WebSocket gateway failures, pipe validation errors, or any NestJS-specific runtime issues requiring diagnosis.
Pragmatic Functional Programming
by whatiskadudoing
A practical, jargon-free guide to functional programming - the 80/20 approach that gets results without the academic overhead
code-review
by fabioc-aloha
"Systematic code review for correctness, security, and growth — not just style enforcement"
cetus-dlmm-interface
by RandyPen
Enables Claude to effectively work with the Cetus Dynamic Liquidity Market Maker (DLMM) protocol on Sui blockchain. This skill provides comprehensive knowledge of the DLMM architecture, Move smart contracts, Rust SDK, and development workflows. Claude can assist with building, testing, and modifying DLMM contracts, creating swap simulations, implementing new features, and debugging protocol issues. The skill covers all 15 Move modules, multi-bin architecture, reward distribution, ACL system, and flash swap functionality. Trigger contexts include: working with Sui Move smart contracts for decentralized exchanges, implementing dynamic liquidity management, creating multi-bin AMM protocols, building swap simulations with Rust SDK, modifying DLMM protocol parameters, debugging pool operations, implementing reward systems, and working with Cetus DLMM interface codebase.
visual-feedback-loop
by vladmdgolam
"AI agent visual feedback loop for any web app. Use when iterating on visual code (UI, canvas, 3D, SVG, charts, animations) and you need to SEE the rendered result to evaluate quality. Covers: dev-screenshot API pattern (GET trigger → SSE → client capture → POST back → file saved), parameterized rendering, metadata sidecars, visual regression with pixel diff, WebMCP tool registration, and console fallbacks. Activate on: 'take a screenshot', 'show me the render', 'visual QA', 'compare before/after', 'pixel diff', or any iterative visual work where the agent needs to inspect rendered output."
effect-v4
by teeverc
"Effect v4 (beta) development and v3 → v4 migration guidance. Use when building new Effect v4 code or upgrading from v3, including API renames, behavior changes, before/after examples, and v4-specific patterns for services, layers, generators, yieldable, error handling, and schema codecs."
better-skill-review
by psylch
"Review a agent skill by combining automated linting with structured semantic analysis. Runs hard-rule validation, evaluates contextual findings, then performs deep review against best practices (description quality, workflow design, runtime robustness, script conventions, UX patterns). Produces actionable improvement suggestions with before/after examples. This skill should be used when reviewing a skill, validating skill structure, improving skill quality, checking skill conventions, or when the user says 'review skill', 'validate skill', 'check skill', 'improve skill', 'iterate on skill', '走查技能', '验证技能', '检查 skill', '改进技能', '优化 skill'."
effect-ts
by teeverc
"Effect-TS (Effect) guidance for TypeScript. Use when building, refactoring, reviewing, or explaining Effect code, especially for: typed error modeling (expected errors vs defects), Context/Layer/Effect.Service dependency wiring, Scope/resource lifecycles, runtime execution boundaries, schema-based decoding, concurrency/scheduling/streams, @effect/platform APIs, Effect AI workflows, and Promise/async migration."
wallet-brc100
by b-open-io
This skill should be used when the user asks to "implement BRC-100 wallet", "use wallet-toolbox", "TypeScript BSV wallet", "BRC-100 implementation", "desktop wallet", "Electron wallet", "browser wallet", "IndexedDB wallet storage", "wallet actions", "wallet baskets", "UTXO management", "createAction", "listOutputs", "wallet certificates", or needs guidance on building conforming wallets using @bsv/wallet-toolbox.
solidjs-solidstart-expert
by mOdrA40
Expert-level SolidJS and SolidStart development skill with 20+ years senior/lead engineer mindset. Comprehensive guidance for building production-ready, scalable web applications with fine-grained reactivity. Use when Claude needs to: (1) Create new SolidJS/SolidStart projects, (2) Implement TanStack Query/Router/Table/Form integration, (3) Build reactive components with signals/stores/resources, (4) Handle SSR/SSG/streaming with SolidStart, (5) Implement authentication and API routes, (6) Optimize bundle size and performance, (7) Debug reactivity issues and memory leaks, (8) Structure large-scale applications, (9) Implement type-safe patterns with TypeScript, (10) Handle error boundaries and suspense, (11) Build accessible UI components, (12) Deploy to Vercel/Netlify/Cloudflare. Triggers: "solid", "solidjs", "solidstart", "createSignal", "createStore", "createResource", "tanstack solid", "vinxi", "fine-grained reactivity".