Overview CLI FAQ

Agent Skills 排行榜 · 关键词 + 语义搜索

按 / 聚焦搜索框
正在使用 AI 进行语义搜索...
23,097
总 Skills
59.4M
总安装量
2,536
贡献者
# Skill 仓库 描述 安装量
18251 code-antipatterns laurigates/claude-plugins
Context Analysis path: $1 (defaults to current directory if not specified) JS/TS files: ! find . -type f \( -name "*.js" -o -name "*.ts" -o -name "*.jsx" -o -name "*.tsx" \) Vue files: ! find . -name "*.vue" Python files: ! find . -name "*.py" Your Task Perform comprehensive anti-pattern analysis using ast-grep and parallel agent delegation. Analysis Categories Based on the detected languages, analyze for these categories: JavaScript/TypeScript Anti-patterns Callbacks, magic values, empty catch ...
 50
18252 configure-readme laurigates/claude-plugins
When to Use This Skill Use this skill when... Use another approach when... Creating a README.md for a new project from scratch Editing specific README content — use direct file editing Auditing an existing README for missing sections (badges, install, structure) Writing detailed API documentation — use /configure:docs Standardizing README format across multiple projects Creating GitHub Pages documentation site — use /configure:github-pages Adding shields.io badges, tech stack table, or project s...
 50
18253 ads-agent dengineproblem/agents-monorepo
Facebook Ads Agent Ты - AI-агент для управления Facebook рекламой. Работаешь автономно, используя MCP сервер meta-ads и конфигурацию из MD файлов. Твои возможности Анализ и оптимизация рекламных кампаний Создание и управление кампаниями, ad sets, ads Формирование отчетов по метрикам Анализ эффективности креативов Настройка таргетинга и аудиторий Как работать При любом запросе о рекламе: Определи аккаунт - прочитай .claude/ads-agent/config/ad_accounts.md чтобы понять какие аккаунты доступны Изучи...
 50
18254 referral-program kimny1143/claude-code-template
Referral & Affiliate Programs You are an expert in viral growth and referral marketing. Your goal is to help design and optimize programs that turn customers into growth engines. Before Starting Check for product marketing context first: If .agents/product-marketing-context.md exists (or .claude/product-marketing-context.md in older setups), read it before asking questions. Use that context and only ask for information not already covered or specific to this task. Gather this context (ask if not...
 50
18255 kpi dashboard builder eddiebe147/claude-settings
KPI Dashboard Builder Expert KPI and performance dashboard design system that helps you define meaningful metrics, build actionable dashboards, track progress, and drive data-driven decision-making. This skill provides structured workflows for metric selection, dashboard design, and performance management based on business intelligence and analytics best practices. What gets measured gets managed. This skill helps you cut through vanity metrics to identify KPIs that truly drive business outcomes...
 50
18256 app-store-optimization alirezarezvani/claude-code-aso-skill
App Store Optimization (ASO) Skill This comprehensive skill provides complete ASO capabilities for successfully launching and optimizing mobile applications on the Apple App Store and Google Play Store. Capabilities Research & Analysis Keyword Research: Analyze keyword volume, competition, and relevance for app discovery Competitor Analysis: Deep-dive into top-performing apps in your category Market Trend Analysis: Identify emerging trends and opportunities in your app category Review Sentimen...
 50
18257 wordpress-woocommerce-development sickn33/antigravity-awesome-skills
WordPress WooCommerce Development Workflow Overview Specialized workflow for building WooCommerce stores including setup, payment gateway integration, shipping configuration, custom product types, and store optimization. When to Use This Workflow Use this workflow when: Setting up WooCommerce stores Integrating payment gateways Configuring shipping methods Creating custom product types Building subscription products Workflow Phases Phase 1: Store Setup Skills to Invoke app-builder - Project scaf...
 50
18258 sap-api-style secondsky/sap-skills
This skill provides comprehensive guidance for documenting SAP APIs according to official SAP API Style Guide standards. It covers all major API types and documentation approaches used across the SAP ecosystem. Documentation Source: [https://github.com/SAP-docs/api-style-guide](https://github.com/SAP-docs/api-style-guide) (76 files extracted) Last Verified: 2025-11-21 When to Use This Skill Use this skill when: - Creating API documentation for REST, OData, Java, JavaScript, .NET, or C/C++ ...
 50
18259 test-reporting-analytics proffesor-for-testing/agentic-qe
<default_to_action> When building test reports: - DEFINE audience (dev team vs executives) - CHOOSE key metrics (max 5-7) - SHOW trends (not just snapshots) - HIGHLIGHT actions (what to do about it) - AUTOMATE generation Dashboard Quick Setup: ``` +------------------+------------------+------------------+ | Tests Passed | Code Coverage | Flaky Tests | | 1,247/1,250 ✅ | 82.3% ⬆️ +2.1% | 1.2% ⬇️ -0.3% | +------------------+------------------+------------------+ | Critical B...
 50
18260 invoice-generator dkyazzentwatwa/chatgpt-skills
Invoice Generator Skill Overview I help freelancers and small businesses create professional invoices quickly. Just tell me the details, and I'll generate a complete, properly formatted invoice. What I can do: Create professional invoices in multiple formats Calculate taxes (VAT, GST, sales tax) Handle multiple currencies Support various payment terms Generate in English or Chinese What I cannot do: File taxes for you Guarantee compliance with all local regulations Process actual payments How to...
 50
18261 i18n iofficeai/aionui
LobeHub Internationalization Guide Default language: Chinese (zh-CN) Framework: react-i18next Only edit files in src/locales/default/ - Never edit JSON files in locales/ Run pnpm i18n to generate translations (or manually translate zh-CN/en-US for dev preview) Key Naming Convention Flat keys with dot notation (not nested objects): // ✅ Correct export default { 'alert.cloud.action' : '立即体验' , 'sync.actions.sync' : '立即同步' , 'sync.status.ready' : '已连接' , } ; // ❌ Avoid nested objects export default...
 50
18262 db johnlindquist/claude
Oracle Database Skills This domain contains Oracle Database skills for administration, SQL and PL/SQL development, performance tuning, security, ORDS, SQLcl, migrations, frameworks, OCR container guidance, and agent-safe database workflows. How to Use This Domain Start with the routing table below. Read only the specific file or category you need. Directory Structure Show more
 50
18263 wordpress sickn33/antigravity-awesome-skills
WordPress You are an expert in WordPress and WooCommerce development with deep knowledge of PHP and WordPress ecosystem. Core Principles Write concise, technical responses with accurate PHP examples Follow WordPress coding standards and object-oriented programming practices Use lowercase with hyphens for directories (e.g., wp-content/themes/my-theme) Favor hooks (actions and filters) for extending functionality Never modify core WordPress files PHP/WordPress Standards Implement PHP 7.4+ featur...
 50
18264 task manager eddiebe147/claude-settings
Task Manager The Task Manager skill helps you organize, prioritize, and track tasks efficiently using proven productivity frameworks like Eisenhower Matrix, GTD (Getting Things Done), and MoSCoW prioritization. It ensures work is properly sequenced, delegated, and tracked to completion. This skill excels at breaking down large projects into actionable tasks, identifying dependencies, estimating effort, and helping you focus on high-impact work. It integrates with your existing project management...
 50
18265 hwc-ux-feedback thehotwireclub/hotwire_club-skills
User Experience & Feedback Implement cross-cutting feedback and perceived-performance patterns in Hotwire. Core Workflow Identify feedback need: loading, submit activity, progress reporting, optimistic updates, or transitions. Prefer built-in Turbo semantics first ( busy , progress bar hooks, submit/render lifecycle events). Add optimistic updates only with a clear reconciliation strategy. Keep transition logic bounded to explicit lifecycle events and cache/preview-safe paths. Verify UX behavior...
 50
18266 pair programming proffesor-for-testing/agentic-qe
Pair Programming Collaborative AI pair programming with intelligent role management, real-time quality monitoring, and comprehensive development workflows. What This Skill Does This skill provides professional pair programming capabilities with AI assistance, supporting multiple collaboration modes, continuous verification, and integrated testing. It manages driver$navigator roles, performs real-time code review, tracks quality metrics, and ensures high standards through truth-score verification...
 49
18267 form-validation-with-zod oimiragieo/agent-studio
Form Validation With Zod Skill Use Zod for form validation Memory Protocol (MANDATORY) Before starting: cat .claude/context/memory/learnings.md After completing: Record any new patterns or exceptions discovered. ASSUME INTERRUPTION: Your context may reset. If it's not in memory, it didn't happen.
 49
18268 slot-paymaster cartridge-gg/docs
Slot Paymaster Manage paymasters that sponsor transaction fees, enabling gasless experiences for users. Zero integration required — when enabled, eligible transactions are automatically sponsored. Availability Testnet : Automatically enabled, no setup required Mainnet : Self-served via Slot CLI Creating a Paymaster Requires an authenticated session ( slot auth login ) and a team with credits. slot paymaster < name > create --team < team > --budget < amount > --unit CREDIT The budget is deducted ...
 49
18269 hwc-forms-validation thehotwireclub/hotwire_club-skills
Forms & Validation Implement form-centric Hotwire workflows with Turbo Frames and Stimulus. Core Workflow Identify the form flow: create/edit, inline edit, typeahead, modal form, or external controls. Wrap the form interaction scope in a Turbo Frame when validation errors must rerender in place. Return 422 for validation failures and 303 for successful redirects. Handle post-submit behavior with turbo:submit-end only when Turbo defaults are insufficient. Preserve user context during rerenders (f...
 49
18270 blueprint-derive-plans laurigates/claude-plugins
/blueprint:derive-plans Retroactively generate Blueprint documentation (PRDs, ADRs, PRPs) from an existing established project by analyzing git history, codebase structure, and existing documentation. Use case : Onboarding established projects into the Blueprint Development system when PRD/ADR/PRP documents don't exist but the project has implementation history. When to Use This Skill Use this skill when... Use alternative when... Project has git history but no PRDs/ADRs/PRPs Starting a brand ne...
 49
18271 github-cli hairyf/skills
GitHub CLI Skill This skill provides comprehensive guidance for using the GitHub CLI (gh) to manage repositories, CI/CD workflows, issues, pull requests, and releases. Prerequisites gh CLI installed and authenticated Run gh auth status to verify authentication Core Operations Repository Management List repositories gh repo list [owner] --limit 50 gh repo list --source Only source repos (not forks) gh repo list --fork Only forks View repository gh re...
 49
18272 object-removal eachlabs/skills
Object Removal & Inpainting Remove unwanted elements from photos using each::sense. This skill intelligently removes objects, people, text, watermarks, and imperfections while seamlessly filling the removed areas with contextually appropriate content. Features Object Removal : Remove unwanted items from any photo Person Removal : Remove people from backgrounds cleanly Text/Watermark Removal : Clean up images with unwanted text overlays Blemish Removal : Remove skin imperfections and photo artifa...
 49
18273 configure-select laurigates/claude-plugins
/configure:select Interactively select which infrastructure standards checks to run. When to Use This Skill Use this skill when... Use another approach when... Setting up selected components interactively Running all components (use /configure:all ) Choosing specific standards to implement Checking status only (use /configure:status ) Customizing configuration scope for project Single component needed (use specific /configure:X skill) User wants control over which components to configure Automat...
 49
18274 virtual-agent groeimetai/snow-flow
Virtual Agent (VA) provides conversational AI capabilities for self-service through chat interfaces. Virtual Agent Architecture Topic Structure ``` Topic: Password Reset ├── NLU Model │ ├── Utterances: "reset my password", "forgot password" │ └── Entities: application_name ├── Topic Blocks (Flow) │ ├── Greeting │ ├── Ask for Application │ ├── Verify User │ ├── Process Reset │ └── Confirmation └── Variables ├── user_email └── application ``` Key Tables | `sys_cs_top...
 49
18275 better-chatbot-patterns jackspace/claudeskillz
better-chatbot-patterns Status: Production Ready Last Updated: 2025-10-29 Dependencies: None Latest Versions: next@15.3.2, ai@5.0.82, zod@3.24.2, zustand@5.0.3 Overview This skill extracts reusable patterns from the better-chatbot project for use in custom AI chatbot implementations. Unlike the better-chatbot skill (which teaches project conventions), this skill provides portable templates you can adapt to any project. Patterns included: Server action validators (auth, validation, FormData)...
 49
18276 jest-generator secondsky/claude-skills
Jest Generator Skill Purpose Generate Jest-based unit tests for JavaScript and TypeScript code, following Jest conventions and best practices with proper mocking, describe blocks, and code organization. When to Use Generate Jest tests for JavaScript/TypeScript modules Create test files for React components Add missing test coverage to existing code Need Jest-specific patterns (mocks, spies, snapshots) Test File Naming Source to Test Mapping: src/components/Feature.tsx → src/components/Feature.te...
 49
18277 tech rawkode-academy/rawkode-academy
This skill helps maintain the content/technologies directory by researching, validating, and creating technology profiles. When the user asks to add or check a technology (e.g., "Add Bun", "Check Kubernetes"), follow this process: 1. Research & Discovery Use WebSearch to gather the following information about the technology: Official Name and Description (1-2 paragraphs summary). Official Website and Documentation URLs. Source Code Repository (GitHub/GitLab) and License (e.g., Apache-2.0, MI...
 49
18278 docker-compose teachingai/full-stack-skills
Docker Compose Skill Overview This skill provides comprehensive Docker Compose management, enabling AI agents to orchestrate multi-container applications, manage services, inspect logs, and troubleshoot containerized environments with progressive disclosure for optimal context usage. Context Savings: ~92% reduction MCP Mode: ~25,000 tokens always loaded (multiple tools + schemas) Skill Mode: ~700 tokens metadata + on-demand loading When to Use Managing local development environments Orchestra...
 49
18279 youtube-automation davepoon/buildwithclaude
YouTube Automation via Rube MCP Automate YouTube operations through Composio's YouTube toolkit via Rube MCP. Prerequisites Rube MCP must be connected (RUBE_SEARCH_TOOLS available) Active YouTube connection via RUBE_MANAGE_CONNECTIONS with toolkit youtube Always call RUBE_SEARCH_TOOLS first to get current tool schemas Setup Get Rube MCP : Add https://rube.app/mcp as an MCP server in your client configuration. No API keys needed — just add the endpoint and it works. Verify Rube MCP is available by...
 49
18280 loading-states dylantarre/animation-principles
Loading States You are an expert in designing loading experiences that maintain user confidence and perceived performance. What You Do You design loading patterns that keep users informed and reduce perceived wait time. Loading Patterns Skeleton Screens Show the layout shape before content loads. Use for known content structure. Animate with subtle shimmer. Spinner/Progress Indeterminate spinner for unknown duration. Determinate progress bar when progress is measurable. Keep spinners small and u...
 49
18281 surrealdb 24601/surreal-skills
SurrealDB 3 Skill Expert-level SurrealDB 3 architecture, development, and operations. Covers SurrealQL, multi-model data modeling, graph traversal, vector search, security, deployment, performance tuning, SDK integration, and the full SurrealDB ecosystem. For AI Agents Get a full capabilities manifest, decision trees, and output contracts: uv run { baseDir } /scripts/onboard.py --agent See AGENTS.md for the complete structured briefing. Command What It Does uv run {baseDir}/scripts/doctor.py Hea...
 49
18282 typo3-extension-upgrade dirnbauer/webconsulting-skills
TYPO3 Extension Upgrade Skill Systematic framework for upgrading TYPO3 extensions to newer LTS versions. Scope: Extension code upgrades only. NOT for TYPO3 project/core upgrades. Upgrade Toolkit Tool Purpose Files Extension Scanner Diagnose deprecated APIs TYPO3 Backend Rector Automated PHP migrations .php Fractor Non-PHP migrations FlexForms, TypoScript, YAML, Fluid PHPStan Static analysis .php Planning Phase (Required) Before ANY code changes for major upgrades: List all files with hardco...
 49
18283 chrome johnlindquist/claude
Chrome Automation Automate browser interactions using Puppeteer or Playwright. Prerequisites Puppeteer npm install puppeteer Or Playwright npm install playwright npx playwright install chromium Puppeteer Quick Start Basic Script // script.js const puppeteer = require('puppeteer'); (async () => { const browser = await puppeteer.launch(); const page = await browser.newPage(); await page.goto('https://example.com'); await page.screenshot({ path: 'screenshot.png' }); await browser.c...
 49
18284 blueprint-claude-md laurigates/claude-plugins
Generate or update the project's CLAUDE.md file based on blueprint artifacts, PRDs, and project structure. When to Use This Skill Use this skill when... Use alternative when... Need to create/update CLAUDE.md for team instructions Use /blueprint:rules for path-specific rules Want to add @imports to existing CLAUDE.md Use /blueprint:generate-rules to create rules from PRDs Need to create CLAUDE.local.md for personal preferences Editing individual rule files directly Converting inline content to l...
 49
18285 git-workflow blogic-cz/blogic-marketplace
Git Workflow When to use this skill Creating meaningful commit messages Managing branches Merging code Resolving conflicts Collaborating with team Git best practices Instructions Step 1: Branch management Create feature branch : Create and switch to new branch git checkout -b feature/feature-name Or create from specific commit git checkout -b feature/feature-name < commit-hash > Naming conventions : feature/description : New features bugfix/description : Bug fixes hotfix/description : Urgent f...
 49
18286 fetch-library-docs panaversity/agentfactory
Library Documentation Skill Fetches official library documentation with 60-90% token savings. WHEN TO INVOKE (Auto-Detection) INVOKE AUTOMATICALLY when: Context Detection Signal Content Type Implementing About to write code using library API examples,api-ref Debugging Error contains library name (e.g., PrismaClientError ) troubleshooting Installing Adding new package, npm install , setup task setup Integrating Connecting libraries ("use X with Y") examples,setup Upgrading Version migration, brea...
 49
18287 ln-005-environment-scanner levnikolaevich/claude-code-skills
Paths: File paths ( shared/ , references/ , ../ln-* ) are relative to skills repo root. If not found at CWD, locate this SKILL.md directory and go up one level for repo root. Environment Scanner (Standalone Utility) Type: Standalone Utility Category: 0XX Shared Probes CLI agents (Codex, Gemini) and writes docs/environment_state.json . Skills read this file to check disabled flags before live-probing agents. When to Use This Skill First-time project setup (no docs/environment_state.json yet) Afte...
 49
18288 controller-native cartridge-gg/docs
Controller Native Integration Integrate Controller into native and mobile applications. Choosing an Approach Approach Use When Platforms Native Bindings (Controller.c) Performance-critical, native apps iOS, Android, React Native, C/C++ Web Wrapper (Capacitor) Existing web app → app store iOS, Android Key Concepts SessionConnector : Web/Capacitor apps with browser-based auth SessionAccount : Native apps using Controller.c FFI bindings ControllerAccount : Headless/server-side with custom signing k...
 49
18289 copilot-docs hoodini/ai-agents-skills
GitHub Copilot Custom Instructions Configure repository-specific instructions for GitHub Copilot. Quick Start Create .github/copilot-instructions.md in your repository: Copilot Instructions Code Style - Use TypeScript with strict mode - Prefer functional components with hooks - Use Tailwind CSS for styling Project Context This is a Next.js 14 app using the App Router. API routes are in `app/api/`. Effective Patterns Project Context Project Context Tech Stack - Next.js 14 with App Ro...
 49
18290 supabase-postgres-best-practices secondsky/claude-skills
Supabase Postgres Best Practices Comprehensive performance optimization guide for Postgres, maintained by Supabase. Contains rules across 8 categories, prioritized by impact to guide automated query optimization and schema design. When to Apply Reference these guidelines when: Writing SQL queries or designing schemas Implementing indexes or query optimization Reviewing database performance issues Configuring connection pooling or scaling Optimizing for Postgres-specific features Working with Row...
 49
18291 swain-init cristoslc/swain
Project Onboarding One-time setup for adopting swain in a project. This skill is not idempotent — it migrates files and installs tools. For per-session health checks, use swain-doctor. Run all phases in order. If a phase detects its work is already done, skip it and move to the next. Phase 1: CLAUDE.md → AGENTS.md migration Goal: establish the @AGENTS.md include pattern so project instructions live in AGENTS.md (which works across Claude Code, GitHub, and other tools that read AGENTS.md natively...
 49
18292 synapse-docs s-hiraoku/synapse-a2a
This skill ensures Synapse A2A documentation stays synchronized with code changes. When This Skill Activates Automatic Triggers - Code changes in core modules - `synapse/*.py`, `synapse/commands/*.py` - Profile changes - `synapse/profiles/*.yaml` - Template changes - `synapse/templates/.synapse/*` - Plugin/Skill changes - `plugins/synapse-a2a//*` - Configuration changes - `pyproject.toml` (version, dependencies, entry points) Manual Invocation - `/synapse-docs` - Run full documentati...
 49
18293 1k-error-handling onekeyhq/app-monorepo
Error Handling Best practices for error handling in OneKey codebase. Core Principles Use try/catch blocks for async operations that might fail Provide appropriate error messages and fallbacks Use useAsyncCall hook for operations needing loading/error states Never swallow errors silently Quick Reference Basic Try/Catch async function fetchData ( ) { try { const result = await apiCall ( ) ; return result ; } catch ( error ) { console . error ( 'Failed to fetch data:' , error ) ; throw error ; // R...
 49
18294 laravel:eloquent-relationships jpcaparas/superpowers-laravel
Model relationships express your domain; load only what you need. Commands ``` Typical loading Post::with(['author', 'tags'])->withCount('comments')->paginate(20); Constrained eager loading User::with(['posts' => fn($q) => $q->latest()->where('published', true)])->find($id); Pivot ops (many-to-many) $post->tags()->sync([1,2,3]); // atomic replace $post->tags()->syncWithoutDetaching([4]); Chunking large reads Order::where('status', 'open')->lazy()->each(fn($o) => ...); ``` Patt...
 49
18295 product-analyst ncklrs/startup-os-skills
Product Analyst Measure user behavior and product health to inform data-driven decisions. Core Principle What gets measured gets improved. Define the right metrics, track them relentlessly, and act on insights quickly. North Star Metric The ONE metric that best captures value delivered to users. Your North Star should: ✅ Represent real customer value ✅ Correlate with revenue ✅ Be measurable frequently (daily/weekly) ✅ Rally the entire team around one goal Examples by Product Type: Commu...
 49
18296 challenge langwatch/langwatch
/em:challenge — Pre-Mortem Plan Analysis Command: /em:challenge <plan> Systematically finds weaknesses in any plan before reality does. Not to kill the plan — to make it survive contact with reality. The Core Idea Most plans fail for predictable reasons. Not bad luck — bad assumptions. Overestimated demand. Underestimated complexity. Dependencies nobody questioned. Timing that made sense in a spreadsheet but not in the real world. The pre-mortem technique: imagine it's 12 months from now and thi...
 49
18297 feishu-doc-manager shuai-daidai/feishu-doc-manager
📄 Feishu Doc Manager | 飞书文档管理器 Seamlessly publish Markdown content to Feishu Docs with automatic formatting. 将 Markdown 内容无缝发布到飞书文档，自动渲染格式。 🎯 Problems Solved | 解决的痛点 Problem Solution 问题 解决方案 Markdown tables not rendering Auto-convert tables to formatted lists Markdown 表格无法渲染 自动转换为格式化列表 Permission management complexity One-click collaborator management 权限管理复杂 一键协作者管理 400 errors on long content Auto-split long documents 长内容 400 错误 自动分段写入 Inconsistent formatting write / append auto-render Markdown ...
 49
18298 ln-600-docs-auditor levnikolaevich/claude-code-skills
Audit project documentation quality. Universal for any tech stack. Purpose - Proactively compress - find all opportunities to reduce size while preserving value - Eliminate meaningless, redundant, and verbose content - Convert prose to structured formats (tables, lists) - Verify documentation hierarchy with CLAUDE.md as root - Detect duplication and enforce Single Source of Truth - Ensure docs match current code state - Semantic verification - delegate to ln-601 to verify content matche...
 49
18299 using-authentication andrelandgraf/fullstackrecipes
Working with Authentication Use Better Auth for client and server-side authentication. Covers session access, protected routes, sign in/out, and fetching user data. Implement Working with Authentication Use Better Auth for client and server-side authentication. Covers session access, protected routes, sign in/out, and fetching user data. See: Resource: using-authentication in Fullstack Recipes URL: https://fullstackrecipes.com/recipes/using-authentication Client-Side Authentication Use the...
 49
18300 email composer eddiebe147/claude-settings
Email Composer Quick start Provide context and purpose, and I'll draft an appropriate email. What I need: Purpose of email (request, follow-up, announcement, etc.) Recipient relationship (colleague, customer, manager, vendor) Key points to include Desired tone (formal, casual, urgent, friendly) Email structure Standard professional email format: Subject: [Clear, specific subject line] [Greeting], [Opening - context/purpose] [Body - main points] [Closing - call to action] [Sign-off] [Your name] C...
 49