Software Development AI agent skills

13,359 skills in the archive. Read a skill’s instructions or open its original repository.

• Factory Pattern

  by @PatternsDev

  Teaches the factory pattern for flexible object creation. Use when you need to create objects dynamically without using the new keyword or when object creation logic should be centralized.

• React Render Optimization

  by @PatternsDev

  Teaches React rendering performance optimization patterns. Use when reducing unnecessary re-renders, optimizing memoization, improving state design, or diagnosing React performance issues.

• Third Party

  by @PatternsDev

  Teaches strategies for mitigating third-party script performance impact. Use when third-party scripts like analytics, ads, or widgets are degrading your page load times or Core Web Vitals.

• Js Performance Patterns

  by @PatternsDev

  Provides framework-agnostic JavaScript runtime performance patterns. Use when optimizing hot paths, loops, DOM operations, caching, or data structure choices in performance-critical code.

• Static Rendering

  by @PatternsDev

  Teaches static rendering (SSG) for build-time HTML generation. Use when your pages don't change per request and can be pre-rendered at build time for maximum cacheability and performance.

• Proxy Pattern

  by @PatternsDev

  Teaches the proxy pattern for intercepting object operations. Use when you need validation, logging, formatting, or access control on property access, assignment, or function invocation.

• Observer Pattern

  by @PatternsDev

  Teaches the observer pattern for event-driven communication. Use when you need decoupled publish/subscribe behavior where multiple parts of your system react to state changes or events.

• Composables

  by @PatternsDev

  Teaches Vue composables for reusable stateful logic with the Composition API. Use when extracting shared reactive state, side effects, or computed logic that multiple components need.

• Tree Shaking

  by @PatternsDev

  Teaches tree shaking for dead code elimination in JavaScript bundles. Use when your bundle includes unused exports and you want to reduce the final bundle size during the build step.

• Hooks Pattern

  by @PatternsDev

  Teaches React Hooks for reusing stateful logic across components. Use when extracting shared behavior like form handling, subscriptions, or side effects into reusable custom hooks.

• Render Props Pattern

  by @PatternsDev

  Teaches the render props pattern for flexible component composition. Use when you need to share rendering logic between components by passing a function that returns JSX as a prop.

• Container Presentational

  by @PatternsDev

  Teaches the container/presentational pattern for Vue components. Use when you want to separate data fetching and business logic from presentation for better testability and reuse.

• Islands Architecture

  by @PatternsDev

  Teaches the islands architecture pattern for partial hydration. Use when building content-heavy sites where most of the page is static and only small regions need interactivity.

• Loading Sequence

  by @PatternsDev

  Teaches resource loading sequence optimization for Core Web Vitals. Use when you need to improve FCP, LCP, or FID by reordering how critical resources are discovered and loaded.

• Module Pattern

  by @PatternsDev

  Teaches the module pattern for code organization and encapsulation. Use when structuring JavaScript into reusable, maintainable pieces with clear public and private boundaries.

• Prototype Pattern

  by @PatternsDev

  Teaches the prototype pattern for property sharing via the prototype chain. Use when creating many objects of the same type that should share methods or properties efficiently.

• Singleton Pattern

  by @PatternsDev

  Teaches the singleton pattern for managing a single shared instance. Use when exactly one instance of a class or object is needed to coordinate actions across your application.

• Compression

  by @PatternsDev

  Teaches JavaScript compression techniques including Gzip and Brotli. Use when optimizing network transfer times or configuring server-side compression for production builds.

• Bundle Splitting

  by @PatternsDev

  Teaches bundle splitting techniques for web performance. Use when your application has a large JavaScript bundle that affects load times or when you need to reduce FCP/LCP.

• Preload

  by @PatternsDev

  Teaches resource preloading to prioritize critical assets. Use when critical resources like fonts, hero images, or key scripts are discovered late in the loading waterfall.

• React Selective Hydration

  by @PatternsDev

  Teaches selective hydration combined with streaming SSR in React 18+. Use when you need to prioritize hydrating interactive components while streaming the rest of the page.

• Provider Pattern

  by @PatternsDev

  Teaches the provider pattern for sharing data across component trees. Use when multiple nested components need access to the same data and prop drilling becomes unwieldy.

• Async Components

  by @PatternsDev

  Teaches async component loading in Vue for performance optimization. Use when you have heavy components that aren't needed on initial render and can be loaded on demand.

• Client Side Rendering

  by @PatternsDev

  Teaches client-side rendering (CSR) for React applications. Use when building highly interactive apps where SEO is not a priority and the UI is driven by user actions.

• View Transitions

  by @PatternsDev

  Teaches the View Transitions API for animating DOM changes. Use when you want smooth animated transitions between pages or UI states without manual animation code.

• Vite Bundle Optimization

  by @PatternsDev

  Teaches Vite-specific bundle optimization patterns. Use when configuring Vite builds, code splitting, managing dependencies, or troubleshooting slow Vite builds.

• React Composition 2026

  by @PatternsDev

  Teaches modern React composition patterns for 2025/2026. Use when designing component APIs, building shared UI libraries, or refactoring prop-heavy components.

• Flyweight Pattern

  by @PatternsDev

  Teaches the flyweight pattern for memory optimization. Use when your application creates large numbers of similar objects and memory consumption is a concern.

• Server Side Rendering

  by @PatternsDev

  Teaches server-side rendering (SSR) for React applications. Use when you need faster initial page loads, better SEO, or dynamic per-request HTML generation.

• Systematic Debugging

  by @ed3dai

  Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes - four-phase framework (root cause investigation, pattern analysis, hypothesis testing, implementation) that ensures understanding…

• Howto Code In Typescript

  by @ed3dai

  Use when writing TypeScript code, reviewing TS implementations, or making decisions about type declarations, function styles, or naming conventions - comprehensive house style covering type vs interface rules, function…

• Doing A Simple Two Stage Fanout

  by @ed3dai

  Use when analyzing a large corpus of text, code, or data that exceeds a single agent's effective context - orchestrates parallel Worker subagents, Critic review subagents, and a final Summarizer subagent with task tracking and…

• Programming In React

  by @ed3dai

  Use when writing or modifying React components, planning React features, or working with .jsx/.tsx files - provides modern React patterns with TypeScript, hooks usage, component composition, and common pitfalls to avoid

• Writing Claude Directives

  by @ed3dai

  Use when writing instructions that guide Claude behavior - skills, CLAUDE.md files, agent prompts, system prompts. Covers token efficiency, compliance techniques, and discovery optimization.

• Testing Skills With Subagents

  by @ed3dai

  Use when creating or editing skills, before deployment, to verify they work under pressure and resist rationalization - applies RED-GREEN-REFACTOR cycle to process documentation by running baseline without skill, writing to…

• Howto Develop With Postgres

  by @ed3dai

  Use when writing database access code, creating schemas, or managing transactions with PostgreSQL - enforces transaction safety with TX_ naming, read-write separation, type safety for UUIDs/JSONB, and snake_case conventions to…

• Requesting Code Review

  by @ed3dai

  Use when completing tasks, implementing major features, or before merging to verify work meets requirements - dispatches code-reviewer subagent, handles retries and timeouts, manages review-fix loop until zero issues

• Investigating A Codebase

  by @ed3dai

  Use when planning or designing features and need to understand current codebase state, find existing patterns, or verify assumptions about what exists; when design makes assumptions about file locations, structure, or existing…

• Writing Implementation Plans

  by @ed3dai

  Use when design is complete and you need detailed implementation tasks for engineers with zero codebase context - creates comprehensive implementation plans with exact file paths, complete code examples, and verification steps…

• Prompt Security Hardening

  by @ed3dai

  Use when writing skills, CLAUDE.md files, agent prompts, or any directives that involve shell commands, environment variables, API credentials, file creation, or git operations - prevents secrets leakage into LLM context, unsafe…

• Export Session As Markdown

  by @ed3dai

  Use when the user wants to export a Claude Code session transcript as a readable Markdown file — converts the current session (or a specified transcript path) into GitHub-flavored Markdown with metadata header, collapsible tool…

• Maintaining A Marketplace

  by @ed3dai

  Use when creating, releasing, or maintaining a Claude Code Plugin Marketplace - covers marketplace.json schema, version management, release checklists, changelog conventions, and validation to prevent sync drift between…

• Review Session

  by @ed3dai

  Use when the user wants to review a Claude Code session for quality — analyzes the current session (or a specified transcript path) for prompting effectiveness, agent performance, and environment gaps, producing actionable…

• Review Recent Sessions

  by @ed3dai

  Use when the user wants to review their recent Claude Code sessions for patterns — analyzes the last N sessions (default 5) in the current project, dispatching parallel reviewers per session, then synthesizing cross-session…

• Asking Clarifying Questions

  by @ed3dai

  Use after initial design context is gathered, before brainstorming - resolves contradictions in requirements, disambiguates terminology, clarifies scope boundaries, and verifies assumptions to prevent building the wrong solution

• Maintaining Project Context

  by @ed3dai

  Use when completing development phases or branches to identify and update CLAUDE.md or AGENTS.md files that may have become stale - analyzes what changed, determines affected contracts and documentation, and coordinates updates

• Brainstorming

  by @ed3dai

  Use when creating or developing anything, before writing code or implementation plans - refines rough ideas into fully-formed designs through structured Socratic questioning, alternative exploration, and incremental validation

• Howto Code In Rust

  by @ed3dai

  Use when writing, reviewing, or modifying Rust code - covers error handling with thiserror+miette, type system patterns, async and serde conventions, testing crates, dependency pinning, and module organization

• Playwright Patterns

  by @ed3dai

  Use when writing Playwright automation code, building web scrapers, or creating E2E tests - provides best practices for selector strategies, waiting patterns, and robust automation that minimizes flakiness

• Executing An Implementation Plan

  by @ed3dai

  Use when executing implementation plans with independent tasks in the current session - dispatches fresh subagent for each task, reviews once per phase, loads phases just-in-time to minimize context usage

• Starting A Design Plan

  by @ed3dai

  Use when beginning any design process - orchestrates gathering context, clarifying requirements, brainstorming solutions, and documenting validated designs to create implementation-ready design documents

• Writing Claude Md Files

  by @ed3dai

  Use when creating or updating CLAUDE.md files for projects or subdirectories - covers top-level vs domain-level organization, capturing architectural intent and contracts, and mandatory freshness dates

• Writing Design Plans

  by @ed3dai

  Use after brainstorming completes - writes validated designs to docs/design-plans/ with structured format and discrete implementation phases required for creating detailed implementation plans

• Property Based Testing

  by @ed3dai

  Use when writing tests for serialization, validation, normalization, or pure functions - provides property catalog, pattern detection, and library reference for property-based testing

• Defense In Depth

  by @ed3dai

  Use when invalid data causes failures deep in execution - validates at every layer data passes through to make bugs structurally impossible rather than temporarily fixed

• Playwright Debugging

  by @ed3dai

  Use when Playwright scripts fail, tests are flaky, selectors stop working, or timeouts occur - provides systematic debugging approach for browser automation issues

• Coding Effectively

  by @ed3dai

  ALWAYS use this skill when writing or refactoring code. Includes context-dependent sub-skills to empower different coding styles across languages and runtimes.

• Writing Good Tests

  by @ed3dai

  Use when writing or reviewing tests - covers test philosophy, condition-based waiting, mocking strategy, and test isolation

• Using Generic Agents

  by @ed3dai

  Use to decide what kind of generic agent you should use

• Autoresearch Loop

  by @jdrhyne

  Domain-agnostic metric-driven improvement loop, generalizing Karpathy's autoresearch. Use when you want an agent to discover what to measure for a project/goal, then run a keep-or-revert experiment loop that proposes changes,…

• Google Ads

  by @jdrhyne

  Query, audit, and optimize Google Ads campaigns. Use an attached browser or the Google Ads API for campaign, keyword, budget, conversion-tracking, and wasted-spend analysis, or when the user explicitly requests a reviewed…

• Gsc

  by @jdrhyne

  Read Google Search Console properties, Search Analytics, URL Inspection, and sitemaps. Use for explicit Search Console or GSC SEO performance, indexing, and freshness analysis; not for general web search.

• Ga4

  by @jdrhyne

  Read Google Analytics 4 reporting data through the GA4 Data API. Use for explicit GA4 property metadata, compatible metric/dimension reports, traffic analysis, key events, quotas, and bounded exports.

• Nutrient Openclaw

  by @jdrhyne

  Use the pinned Nutrient OpenClaw plugin to convert, OCR, extract, redact, watermark, sign, or inspect the last-known local credit record for documents. Route only OpenClaw document-processing requests to its declared tools.…

• Gong

  by @jdrhyne

  Gong API for searching calls, transcripts, and conversation intelligence. Use when working with Gong call recordings, sales conversations, transcripts, meeting data, or conversation analytics. Supports listing calls, fetching…

• Gallery Scraper

  by @jdrhyne

  Bulk download images from login-protected gallery websites using an attached browser session. Use when asked to scrape, download, or save images from authenticated gallery pages, extract full-size images from thumbnails, or…

• Skill Sync

  by @jdrhyne

  Sync skills between local installation and the GitHub source-of-truth repository. Use when asked to install, update, list, or push skills.

• Senior Engineering

  by @jdrhyne

  Engineering principles for building software like a senior engineer. Load when tackling non-trivial development work, architecting systems, reviewing code, or orchestrating multi-agent builds. Covers planning, delivery, quality…

• Task Orchestrator

  by @jdrhyne

  Autonomous multi-agent task orchestration with dependency analysis, parallel tmux/Codex execution, and self-healing heartbeat monitoring. Use for large projects with multiple issues/tasks that need coordinated parallel execution.

• Planner

  by @jdrhyne

  Create structured plans for multi-task projects that can be used by the task-orchestrator skill. Use when breaking down complex work into parallel and sequential tasks with dependencies.

• Parallel Task

  by @jdrhyne

  Coordinate plan files by launching multiple parallel subagents for unblocked tasks. Triggers on explicit "/parallel-task" commands.

• Qa Manual Istqb

  by @fugazi

  Create QA artifacts from requirements: test plans, test conditions/cases, bug reports, regression suites, traceability, and exploratory charters. Use for test planning, test design, defects, coverage, or QA deliverables. Applies…

• Webapp Selenium Testing

  by @fugazi

  Author and maintain versioned Selenium WebDriver tests with Java and JUnit 5. Use for creating, debugging, or running Selenium specs, implementing Page Objects, handling explicit waits, capturing screenshots, or setting up Maven…

• Playwright E2e Testing

  by @fugazi

  Author and maintain versioned Playwright (@playwright/test) TypeScript UI specs for browser user flows. Use when asked to create, run, debug, or refactor E2E tests, form/navigation/auth flows, responsive checks, UI mocking,…

• Accessibility Selenium Testing

  by @fugazi

  Accessibility testing toolkit using Selenium WebDriver 4+ with Java 21+ and axe-core engine. Use when asked to validate WCAG 2.2 AA compliance, scan pages or components for a11y violations, test keyboard navigation, audit color…

• A11y Playwright Testing

  by @fugazi

  Accessibility testing for web applications using Playwright (@playwright/test), TypeScript, and axe-core. Use to write, run, or debug WCAG 2.2 AA checks, keyboard and focus tests, ARIA/semantic validation, accessible names, form…

• Api Testing

  by @fugazi

  Test REST and GraphQL endpoint contracts using Playwright request fixture (TypeScript) or REST Assured (Java). Use for standalone API tests covering schemas, auth, status/error handling, pagination, idempotency, rate limits, or…

• Playwright Regression Testing

  by @fugazi

  Govern Playwright TypeScript regression suites across many tests. Use when asked to plan, select, tier, execute, or optimize suites with risk/change analysis, tags, CI/CD, sharding, flaky-test management, or suite-health…

• Grill Me Qa

  by @fugazi

  A guided interview to challenge and validate QA automation plans, test strategies, and framework designs before implementation. Use when the user wants to validate a test architecture, challenge a testing decision, prepare an…

• Code Security Audit

  by @ProgrammerAnthony

  Use when 用户需要对代码进行安全审计、发现安全漏洞、上线前安全评估、检查代码是否存在安全风险时。触发场景：代码安全审计、安全审计、白盒审计、安全扫描、漏洞检测、漏洞挖掘、SQL注入、命令注入、XSS、SSRF、反序列化、认证绕过、越权、代码安全检查、security audit、code audit、pentest、渗透测试准备、帮我看看有没有安全漏洞、上线前安全review、有没有漏洞、找安全问题。

• Code Review Expert

  by @ProgrammerAnthony

  Use when 用户要求审查代码、评估代码质量、提交 PR 前检查、发现代码有潜在问题时。触发场景：代码审查、code review、审查代码、review、检查代码、代码检查、代码质量、代码评审、这段代码有问题吗、帮我看看代码、合并前检查。

• Algo Rank Wilson

  by @asgard-ai-platform

  Calculate Wilson Score confidence intervals for ranking items by positive proportion with sample size correction. Use this skill when the user needs to rank products by ratings, sort content by approval rate, or build a 'best…

• Algo Rank Bayesian

  by @asgard-ai-platform

  Apply Bayesian averaging to rank items by combining observed ratings with prior expectations. Use this skill when the user needs to rank items with varying review counts, build a 'top rated' list that handles low-sample items…

• Algo Rank Elo

  by @asgard-ai-platform

  Implement Elo rating system to rank items or players from pairwise comparison outcomes. Use this skill when the user needs to rank items from head-to-head matchups, build a competitive rating system, or evaluate relative quality…

• Algo Mfg Cpk

  by @asgard-ai-platform

  Calculate Cpk process capability index to assess whether a process meets specification requirements. Use this skill when the user needs to evaluate process capability, compare processes, or determine if quality targets are…

• Algo Seo Tfidf

  by @asgard-ai-platform

  Implement TF-IDF scoring to measure term importance relative to a document corpus. Use this skill when the user needs to rank documents by keyword relevance, extract important terms from text, or build a basic search relevance…

• React Best Practices

  by @ProgrammerAnthony

  Use when 用户需要React项目开发指导、代码规范制定、最佳实践落地、性能优化、架构设计时。触发场景：React开发、React代码优化、React架构设计、React Hooks使用、Next.js开发、React组件设计、React性能优化。

• Tdd Master

  by @ProgrammerAnthony

  Use when 用户要实现新功能、修复 bug，或明确要求使用 TDD 方式开发、先写测试时。触发场景：tdd、测试驱动、测试驱动开发、先写测试、红绿重构、单元测试、test driven、TDD开发、用TDD写、测试先行、我要开始开发新功能。

• Subagent Driven Development

  by @ProgrammerAnthony

  Use when 已有书面实施计划、任务相对独立，且在本会话内通过子代理逐任务落实时。触发场景：执行实施计划、子代理开发、按计划实现、Task 派发实现、两阶段代码审查、plan execution。

• Algo Price Conjoint

  by @asgard-ai-platform

  Run conjoint analysis to measure how product attributes drive consumer preferences and willingness to pay. Use this skill when the user needs to quantify feature value trade-offs, estimate willingness to pay for specific…

• Algo Rec Hybrid

  by @asgard-ai-platform

  Design hybrid recommendation systems combining multiple strategies for improved accuracy. Use this skill when the user needs to overcome single-method limitations, combine collaborative and content-based filtering, or build a…

• Algo Blockchain Basics

  by @asgard-ai-platform

  Explain blockchain fundamentals including distributed ledger architecture, consensus mechanisms, and block structure. Use this skill when the user needs to understand blockchain concepts, evaluate whether blockchain fits a use…

• Algo Sc Bullwhip

  by @asgard-ai-platform

  Analyze and mitigate the bullwhip effect where demand variability amplifies upstream in supply chains. Use this skill when the user needs to diagnose order variability amplification, quantify the bullwhip ratio, or implement…

• Algo Price Bundle

  by @asgard-ai-platform

  Design bundle pricing strategies using pure bundling, mixed bundling, and consumer surplus analysis. Use this skill when the user needs to set prices for product bundles, determine whether bundling increases profit, or analyze…

• Algo Seo Technical

  by @asgard-ai-platform

  Optimize Core Web Vitals (LCP, INP, CLS) for better search rankings and user experience. Use this skill when the user needs to diagnose page speed issues, improve Largest Contentful Paint, reduce layout shift, or pass Google's…

• Algo Blockchain Smart Contract

  by @asgard-ai-platform

  Design and implement smart contracts as self-executing programmatic agreements on blockchain. Use this skill when the user needs to build automated on-chain logic, evaluate smart contract security, or design tokenized business…

• Algo Sc Eoq

  by @asgard-ai-platform

  Calculate Economic Order Quantity to minimize total inventory cost (ordering + holding). Use this skill when the user needs to determine optimal order size, balance ordering frequency against storage costs, or set reorder points…

• Algo Forecast Arima

  by @asgard-ai-platform

  Build ARIMA models for time series forecasting with trend and seasonality decomposition. Use this skill when the user needs to forecast future values from historical sequential data, test for stationarity, or select ARIMA…

• Algo Ad Ctr

  by @asgard-ai-platform

  Build CTR prediction models for estimating ad click-through rates from features. Use this skill when the user needs to predict click probability, build an ad ranking model, or evaluate ad creative performance — even if they say…

• Algo Seo Schema

  by @asgard-ai-platform

  Implement Schema.org structured data markup in JSON-LD format for enhanced search results. Use this skill when the user needs to add rich snippets to web pages, implement FAQ/Product/Article schema, or validate structured data —…