Claude Skills by berkcangumusisik

Audits Next.js/React app for SEO issues - metadata, Open Graph, structured data

Onboards a new developer - explains the project, runs setup steps, verifies everything works

Reviews and selectively updates outdated Jest/Vitest snapshots

Explains a SQL query in plain language and suggests optimizations

Audits React state management - finds prop drilling, redundant state, and suggests improvements

Bumps version in package.json (or equivalent), creates a git tag, and pushes

Removes unused Tailwind classes, extracts repeated class patterns into components

Audits the codebase for technical debt and produces a prioritized backlog

Runs coverage report, identifies untested code, and generates missing tests

Generates end-to-end tests for a user flow using Playwright or Cypress

Generates unit tests for a file or function with full coverage of edge cases

Analyzes test quality by identifying mutations your tests would NOT catch

Writes performance/benchmark tests for a function or endpoint

Testleri çalıştırır, başarısız olanları analiz eder ve düzeltme önerir

Fixes TypeScript type errors in a file or across the project

Creates a well-typed, tested utility function from a description

Implements WebSocket handlers with rooms, authentication, and reconnection logic

`/skill-name`

Audits React/HTML components for WCAG 2.1 accessibility issues

Generates API documentation from route definitions (Express, Fastify, Hono, etc.)

Scaffolds a complete API endpoint with validation, error handling, and tests

Generates authentication and authorization middleware for Express/Fastify/Hono

Lists and removes stale local and remote branches that have been merged

Detects breaking changes between two git refs and generates a migration guide

Analyzes frontend bundle size and suggests optimizations

Adds caching to expensive operations - Redis, in-memory, HTTP cache headers

Updates CHANGELOG.md with commits since the last entry

Finds a commit by description and cherry-picks it to the current branch

Staged değişiklikleri analiz edip Conventional Commits formatında commit mesajı oluşturur

Reports cyclomatic complexity hotspots and refactoring suggestions

Generates a React/Vue/Svelte component with props, types, tests, and stories

Analyzes the current session's token usage, pinpoints where tokens were wasted, and produces concrete optimization actions

Creates a cron job with error handling, logging, locking, and monitoring

Finds unused functions, variables, exports, and dependencies across the codebase

Hata mesajı veya stack trace alır, kök nedeni bulur ve düzeltir

Maps module dependencies and finds circular imports and coupling issues

Audits dependencies for known vulnerabilities and outdated packages

Pre-deploy checklist - runs tests, checks env vars, verifies build, and flags risks

Finds packages in package.json that are not actually used in the codebase

Updates dependencies safely - patch/minor auto, major with analysis

Creates or optimizes a Dockerfile for the current project

Finds duplicated logic across the codebase and proposes shared abstractions

Validates current environment variables against .env.example requirements

Creates .env.example, validates required env vars, and documents each one

Creates a centralized error handling system with typed errors and proper HTTP responses

Sets up EAS Build, OTA updates, and app.json configuration for Expo projects

Extracts a code block into a named function with proper types and tests

GitHub issue numarasını alır, okur ve otomatik olarak çözer

Generates a form component with validation, error messages, and submit handling

Explains why specific lines of code were written using git blame and commit history