Software Engineering Skills
Browse 1,179 curated software engineering skills for Claude Code, Cursor, and Codex. License-verified, MCP-ready, free to start.
Create Spring Boot Java Project
Create Spring Boot Java Project Skeleton
by github/awesome-copilot / skills/create-spring-boot-java-project
Create Spring Boot Kotlin Project
Create Spring Boot Kotlin Project Skeleton
by github/awesome-copilot / skills/create-spring-boot-kotlin-project
Create Technical Spike
Create time-boxed technical spike documents for researching and resolving critical development decisions before implementation.
by github/awesome-copilot / skills/create-technical-spike
Creating Oracle To Postgres Migration Bug Report
Creates structured bug reports for defects found during Oracle-to-PostgreSQL migration. Use when documenting behavioral differences between Oracle and PostgreSQL as actionable bug reports with severity, root cause, and remediation steps.
by github/awesome-copilot / skills/creating-oracle-to-postgres-migration-bug-report
Creating Oracle To Postgres Migration Integration Tests
Creates integration test cases for .NET data access artifacts during Oracle-to-PostgreSQL database migrations. Generates DB-agnostic xUnit tests with deterministic seed data that validate behavior consistency across both database systems. Use when creating integration tests for a migrated project, generating test coverage for data access layers, or writing Oracle-to-PostgreSQL migration validation tests.
by github/awesome-copilot / skills/creating-oracle-to-postgres-migration-integration-tests
Creating Skills
Guide for creating Claude Code skills following Anthropic's official best practices. Use when user wants to create a new skill, build a skill, write SKILL.md, update an existing skill, or needs skill creation guidelines. Provides structure, frontmatter fields, naming conventions, and new features like dynamic context injection and subagent execution.
by fvadicamo/dev-agent-skills / plugins/skill-authoring/skills/creating-skills
CS Foundations Skill
Master discrete mathematics, logic, formal proofs, and computational thinking. Build the mathematical foundation for all computer science.
by foryourhealth111-pixel/Vibe-Skills / bundled/skills/cs-foundations
Csharp Developer
Use when building C# applications with .NET 8+, ASP.NET Core APIs, or Blazor web apps. Builds REST APIs using minimal or controller-based routing, configures database access with Entity Framework Core, implements async patterns and cancellation, structures applications with CQRS via MediatR, and scaffolds Blazor components with state management. Invoke for C#, .NET, ASP.NET Core, Blazor, Entity Framework, EF Core, Minimal API, MAUI, SignalR.
by Jeffallan/claude-skills / skills/csharp-developer
Csharp Docs
Ensure that C# types are documented with XML comments and follow best practices for documentation.
by github/awesome-copilot / skills/csharp-docs
Csharp Mstest
Get best practices for MSTest 3.x/4.x unit testing, including modern assertion APIs and data-driven tests
by github/awesome-copilot / skills/csharp-mstest
Csharp Nunit
Get best practices for NUnit unit testing, including data-driven tests
by github/awesome-copilot / skills/csharp-nunit
Csharp Tunit
Get best practices for TUnit unit testing, including data-driven tests
by github/awesome-copilot / skills/csharp-tunit
Cto Advisor
Technical leadership guidance for engineering teams, architecture decisions, and technology strategy. Use when assessing technical debt, scaling engineering teams, evaluating technologies, making architecture decisions, establishing engineering metrics, or when user mentions CTO, tech debt, technical debt, team scaling, architecture decisions, technology evaluation, engineering metrics, DORA metrics, or technology strategy.
by alirezarezvani/claude-skills / c-level-advisor/skills/cto-advisor
Cucumber Skill
Generates Cucumber BDD tests with Gherkin feature files and step definitions in Java, JavaScript, or Ruby. Use when user mentions "Cucumber", "Gherkin", "Feature/Scenario", "Given/When/Then", "BDD". Triggers on: "Cucumber", "Gherkin", "BDD", "Feature file", "Given/When/Then", "step definitions".
by LambdaTest/agent-skills / cucumber-skill
Custom Agent Foundry
Expert at designing and creating VS Code custom agents with optimal configurations
by github/awesome-copilot / agents/custom-agent-foundry.agent.md
Custom Instructions File Guidelines
Guidelines for creating high-quality custom instruction files for GitHub Copilot
by github/awesome-copilot / instructions/instructions.instructions.md
C# アプリケーション開発
C# アプリケーション構築指針 by @tsubakimoto
by github/awesome-copilot / instructions/csharp-ja.instructions.md
Dart and Flutter
Instructions for writing Dart and Flutter code following the official recommendations.
by github/awesome-copilot / instructions/dart-n-flutter.instructions.md
Database Designer
Use when the user asks to design database schemas, plan data migrations, optimize queries, choose between SQL and NoSQL, or model data relationships.
by alirezarezvani/claude-skills / engineering/skills/database-designer
Database Migration
Execute database migrations across ORMs and platforms with zero-downtime strategies, data transformation, and rollback procedures. Use when migrating databases, changing schemas, performing data transformations, or implementing zero-downtime deployment strategies.
by wshobson/agents / plugins/framework-migration/skills/database-migration
Database Schema
Schema awareness - read before coding, type generation, prevent column errors
by alinaqi/maggy / skills/database-schema
Database Schema Designer
Use when the user asks to create ERD diagrams, normalize database schemas, design table relationships, or plan schema migrations.
by alirezarezvani/claude-skills / engineering/skills/database-schema-designer
Data Structure Protocol
Build and navigate DSP (Data Structure Protocol) — graph-based long-term structural memory of codebases for LLM agents. Stores entities (modules, functions), their dependencies (imports), public API (shared/exports), and reasons for every connection. Use when: (1) project has a .dsp/ directory, (2) user asks to set up DSP or bootstrap project structure, (3) creating/modifying/deleting code files in a DSP-tracked project, (4) navigating project structure, understanding dependencies, or finding modules, (5) user mentions DSP, dsp-cli, .dsp, or structure mapping.
by k-kolomeitsev/data-structure-protocol / skills/data-structure-protocol
Dataverse Python Advanced Patterns
Generate production code for Dataverse SDK using advanced patterns, error handling, and optimization techniques.
by github/awesome-copilot / skills/dataverse-python-advanced-patterns
Dataverse Python Production Code
Generate production-ready Python code using Dataverse SDK with error handling, optimization, and best practices
by github/awesome-copilot / skills/dataverse-python-production-code
Dataverse Python Quickstart
Generate Python SDK setup + CRUD + bulk + paging snippets using official patterns.
by github/awesome-copilot / skills/dataverse-python-quickstart
Dataverse Python Usecase Builder
Generate complete solutions for specific Dataverse SDK use cases with architecture recommendations
by github/awesome-copilot / skills/dataverse-python-usecase-builder
Dataverse SDK for Python — Authentication & Security Patterns
Based on official Microsoft Azure SDK authentication documentation and Dataverse SDK best practices.
by github/awesome-copilot / instructions/dataverse-python-authentication-security.instructions.md
Dataverse SDK for Python - Best Practices Guide
Production-ready patterns and best practices extracted from Microsoft's official PowerPlatform-DataverseClient-Python repository, examples, and recommended workflows.
by github/awesome-copilot / instructions/dataverse-python-best-practices.instructions.md
Dataverse SDK for Python — Error Handling & Troubleshooting Guide
Based on official Microsoft documentation for Azure SDK error handling patterns and Dataverse SDK specifics.
by github/awesome-copilot / instructions/dataverse-python-error-handling.instructions.md
Dataverse SDK for Python - File Operations & Practical Examples
Complete guide to file upload operations, chunking strategies, and practical real-world examples using the PowerPlatform-DataverseClient-Python SDK.
by github/awesome-copilot / instructions/dataverse-python-file-operations.instructions.md
Dataverse SDK for Python — Official Quickstart
This instruction summarizes Microsoft Learn guidance for the Dataverse SDK for Python (preview) and provides copyable snippets.
by github/awesome-copilot / instructions/dataverse-python-sdk.instructions.md
Dataverse SDK for Python — Performance & Optimization Guide
Based on official Microsoft Dataverse and Azure SDK performance guidance.
by github/awesome-copilot / instructions/dataverse-python-performance-optimization.instructions.md
Dataverse SDK for Python — Testing & Debugging Strategies
Based on official Azure Functions and pytest testing patterns.
by github/awesome-copilot / instructions/dataverse-python-testing-debugging.instructions.md
Davinci Resolve Computer Use Training
Use when the user wants Codex to learn DaVinci Resolve through Blackmagic Design lesson homework, operate the Resolve UI with Computer Use, validate skills against real Resolve behavior, or build a capstone workflow that turns local/T7 media into Instagram and YouTube cuts.
by ChaiWithJai/davinci-resolve-claude-skills / skills/davinci-resolve-computer-use-training
Davinci Resolve Troubleshooting
Use when DaVinci Resolve is broken in some specific way — red playback indicator, missing media, clips offline, audio out of sync, GPU/render crashes, or render queue stuck. Triggering symptoms include phrases like "Resolve is dropping frames", "media offline", "clips show red diagonal", "audio drifts", "Resolve crashes when rendering", "GPU error", or any DaVinci Resolve "why is X broken" question.
by ChaiWithJai/davinci-resolve-claude-skills / skills/davinci-resolve-troubleshooting
DDD Systems & .NET Guidelines
DDD and .NET architecture guidelines
by github/awesome-copilot / instructions/dotnet-architecture-good-practices.instructions.md
Debian Linux Triage
Triage and resolve Debian Linux issues with apt, systemd, and AppArmor-aware guidance.
by github/awesome-copilot / skills/debian-linux-triage
Debugging And Error Recovery
Guides systematic root-cause debugging. Use when tests fail, builds break, behavior doesn't match expectations, or you encounter any unexpected error. Use when you need a systematic approach to finding and fixing the root cause rather than guessing.
by addyosmani/agent-skills / skills/debugging-and-error-recovery
Debugging Hermes TUI Slash Commands
Debug Hermes TUI slash commands: Python, gateway, Ink UI.
by NousResearch/hermes-agent / skills/software-development/debugging-hermes-tui-commands
Debugging Network Issues
Evidence-driven investigation for network, streaming, and protocol-layer bugs where symptoms don't match the obvious cause. Use when debugging connection resets (ECONNRESET, HTTP/2 RST_STREAM, INTERNAL_ERROR), SSE or long-polling stalls, fixed-time connection drops, CDN/proxy/CGNAT idle timeouts, or symptoms like "socket closed unexpectedly", "stream interrupted", "fails after N seconds", "works sometimes but not always", "upstream silent for X seconds". Applies falsification-first layered isolation to pin down the responsible network layer instead of stacking assumptions.
by daymade/claude-code-skills / debugging-network-issues
Debugging Strategies
Master systematic debugging techniques, profiling tools, and root cause analysis to efficiently track down bugs across any codebase or technology stack. Use when investigating bugs, performance issues, or unexpected behavior.
by wshobson/agents / plugins/developer-essentials/skills/debugging-strategies
Debugging Wizard
Parses error messages, traces execution flow through stack traces, correlates log entries to identify failure points, and applies systematic hypothesis-driven methodology to isolate and resolve bugs. Use when investigating errors, analyzing stack traces, finding root causes of unexpected behavior, troubleshooting crashes, or performing log analysis, error investigation, or root cause analysis.
by Jeffallan/claude-skills / skills/debugging-wizard
Debugging Workflows
Debug gh-aw workflows using run logs, audits, and failure triage.
by github/gh-aw / .github/skills/debugging-workflows
Debug Mode Instructions
Debug your application to find and fix a bug
by github/awesome-copilot / agents/debug.agent.md
Declarative Agents Architect
You are a world-class Microsoft 365 Declarative Agent Architect with deep expertise in the complete development lifecycle of Microsoft 365 Copilot declarative agents. You specialize in the latest v1.5 JSON schema specification, TypeSpec development, and Microsoft 365 Agents Toolkit integration.
by github/awesome-copilot / agents/declarative-agents-architect.agent.md
Defi Protocol Templates
Implement DeFi protocols with production-ready templates for staking, AMMs, governance, and lending systems. Use when building decentralized finance applications or smart contract protocols.
by wshobson/agents / plugins/blockchain-web3/skills/defi-protocol-templates
Deliver User Stories
Generates user stories in the standard persona, action, benefit story format from product requirements or feature descriptions. Use when breaking a feature into stories for sprint planning, writing tickets, or communicating scope to engineering. For testable Given/When/Then acceptance criteria on a story, use deliver-acceptance-criteria; for boundary and failure scenarios, use deliver-edge-cases.
by product-on-purpose/pm-skills / skills/deliver-user-stories
Dependabot
Comprehensive guide for configuring and managing GitHub Dependabot. Use this skill when users ask about creating or optimizing dependabot.yml files, managing Dependabot pull requests, configuring dependency update strategies, setting up grouped updates, monorepo patterns, multi-ecosystem groups, security update configuration, auto-triage rules, or any GitHub Advanced Security (GHAS) supply chain security topic related to Dependabot. For pre-commit dependency vulnerability scanning in AI coding agents via the GitHub MCP Server, this skill references the Advanced Security plugin (`advanced-security@copilot-plugins`). Use this skill when an agent needs to scan dependencies for known vulnerabilities before committing.
by github/awesome-copilot / skills/dependabot
Dependency Upgrade
Manage major dependency version upgrades with compatibility analysis, staged rollout, and comprehensive testing. Use when upgrading framework versions, updating major dependencies, or managing breaking changes in libraries.
by wshobson/agents / plugins/framework-migration/skills/dependency-upgrade
Dependent Libraries (Preview)
Using dependent libraries in PCF components
by github/awesome-copilot / instructions/pcf-dependent-libraries.instructions.md
Deprecation And Migration
Manages deprecation and migration. Use when removing old systems, APIs, or features. Use when migrating users from one implementation to another. Use when deciding whether to maintain or sunset existing code.
by addyosmani/agent-skills / skills/deprecation-and-migration
Design Critique
Structured design critique and plan stress-testing. Acts as a relentless interviewer drawing on pre-mortem, red teaming, and ATAM techniques to help someone think through a design or plan exhaustively. Use when the user says "grill me", "critique this", "stress-test this", "pre-mortem", "red team this", or asks to be challenged on a technical architecture, product plan, feature design, or any decision rather than validated.
by psenger/ai-agent-skills / skills/design-critique
Design Patterns for Object-Oriented Programming for Clean Code
Best practices for applying Object-Oriented Programming (OOP) design patterns, including Gang of Four (GoF) patterns and SOLID principles, to ensure clean, maintainable, and scalable code.
by github/awesome-copilot / instructions/oop-design-patterns.instructions.md
Design System Auditor
Design system accessibility auditor. Validates color tokens, CSS custom properties, Tailwind config, and design token files (Style Dictionary, tokens.json) for WCAG AA/AAA contrast compliance. Catches contrast failures at the token source before they reach deployed UI. Also validates focus ring tokens (WCAG 2.4.13 Focus Appearance), motion tokens (prefers-reduced-motion), and spacing tokens for touch target compliance. Supports MUI, Chakra UI, Radix, shadcn/ui, and Style Dictionary.
by Community-Access/accessibility-agents / codex-skills/design-system-auditor
Design System Patterns
Build scalable design systems with design tokens, theming infrastructure, and component architecture patterns. Use when creating design tokens, implementing theme switching, building component libraries, or establishing design system foundations.
by wshobson/agents / plugins/ui-design/skills/design-system-patterns
Design Wizard
Interactive design wizard that guides through a complete frontend design process with discovery, aesthetic selection, and code generation. Use for creating distinctive, production-ready UI.
by davepoon/buildwithclaude / plugins/frontend-design-pro/skills/design-wizard
Desktop A11y Testing Coach
Desktop accessibility testing expert -- NVDA, JAWS, Narrator, VoiceOver screen readers, Accessibility Insights for Windows, automated UIA testing, keyboard-only testing, high contrast verification.
by Community-Access/accessibility-agents / codex-skills/desktop-a11y-testing-coach
Desktop Accessibility Specialist
Desktop application accessibility expert -- platform APIs (UI Automation, MSAA/IAccessible2, NSAccessibility), accessible control patterns, screen reader Name/Role/Value/State, focus management, high contrast, and custom widget accessibility.
by Community-Access/accessibility-agents / codex-skills/desktop-a11y-specialist
Develop Adr
Creates an Architecture Decision Record following the Nygard format to document significant technical decisions, their context, and consequences. Use when making technical choices that affect system architecture, technology selection, or development patterns.
by product-on-purpose/pm-skills / skills/develop-adr
Develop Design Rationale
Documents the reasoning behind design decisions including alternatives considered, trade-offs evaluated, and principles applied. Use when making significant UX decisions, aligning with stakeholders on design direction, or preserving design context for future reference.
by product-on-purpose/pm-skills / skills/develop-design-rationale
Developer Hub
Your intelligent developer command center -- start here for any Python, wxPython, desktop app, NVDA addon, accessibility tool building, desktop accessibility, or general software engineering task. Routes to specialist agents across the developer, web, and document accessibility teams. Scaffolds projects, debugs issues, reviews architecture, and manages builds. No commands to memorize. Just talk.
by Community-Access/accessibility-agents / codex-skills/developer-hub
Develop Solution Brief
Creates a concise one-page solution overview that communicates the proposed approach, key decisions, and trade-offs. Use when pitching solutions to stakeholders, aligning teams on approach, or documenting solution intent before detailed specification.
by product-on-purpose/pm-skills / skills/develop-solution-brief
Develop Spike Summary
Documents the results of a time-boxed technical or design exploration (spike). Use after completing a spike to capture learnings, findings, and recommendations for the team.
by product-on-purpose/pm-skills / skills/develop-spike-summary
Dev Environment Setup
Installs agents, configures MCP servers, aligns marketplace plugins, creates and audits instructions. Use after setup or when agents/MCP/plugins need alignment.
by levnikolaevich/claude-code-skills / plugins/setup-environment/skills/ln-010-dev-environment-setup
Dflow
Build Solana trading applications combining DFlow trading APIs with Helius infrastructure. Covers spot swaps (imperative and declarative), prediction markets, real-time market streaming, Proof KYC, the DFlow Agent CLI for autonomous trading, transaction submission via Sender, fee optimization, shred-level streaming via LaserStream, and wallet intelligence.
by helius-labs/core-ai / helius-cursor/skills/dflow
Dflow
Build Solana trading applications combining DFlow trading APIs with Helius infrastructure. Covers spot swaps (imperative and declarative), prediction markets, real-time market streaming, Proof KYC, the DFlow Agent CLI for autonomous trading, transaction submission via Sender, fee optimization, shred-level streaming via LaserStream, and wallet intelligence.
by helius-labs/core-ai / helius-plugin/skills/dflow
Diagnose
Disciplined diagnosis loop for hard bugs and performance regressions. Reproduce → minimise → hypothesise → instrument → fix → regression-test. Use when user says "diagnose this" / "debug this", reports a bug, says something is broken/throwing/failing, or describes a performance regression.
by mattpocock/skills / skills/engineering/diagnose
Diagnosing Bugs
Diagnosis loop for hard bugs and performance regressions. Use when the user says "diagnose"/"debug this", or reports something broken/throwing/failing/slow.
by mattpocock/skills / skills/engineering/diagnosing-bugs
Direnv
Guide for using direnv - a shell extension for loading directory-specific environment variables. Use when setting up project environments, creating .envrc files, configuring per-project environment variables, integrating with Python/Node/Ruby/Go layouts, working with Nix flakes, or troubleshooting environment loading issues on macOS and Linux.
by julianobarbosa/claude-code-skills / skills/direnv
Django Drf
Django REST Framework patterns. Trigger: When building REST APIs with Django - ViewSets, Serializers, Filters.
by Gentleman-Programming/Gentleman-Skills / curated/django-drf
Django Expert
Use when building Django web applications or REST APIs with Django REST Framework. Invoke when working with settings.py, models.py, manage.py, or any Django project file. Creates Django models with proper indexes, optimizes ORM queries using select_related/prefetch_related, builds DRF serializers and viewsets, and configures JWT authentication. Trigger terms: Django, DRF, Django REST Framework, Django ORM, Django model, serializer, viewset, Python web.
by Jeffallan/claude-skills / skills/django-expert
Django Perf Review
Django performance code review. Use when asked to "review Django performance", "find N+1 queries", "optimize Django", "check queryset performance", "database performance", "Django ORM issues", or audit Django code for performance problems.
by getsentry/skills / skills/django-perf-review
Docs Auditor
Use when auditing project documentation through the evaluation platform with mandatory research, coordinated audit workers, and structured summaries.
by levnikolaevich/claude-code-skills / plugins/codebase-audit-suite/skills/ln-610-docs-auditor
Documentation And Adrs
Records decisions and documentation. Use when making architectural decisions, changing public APIs, shipping features, or when you need to record context that future engineers and agents will need to understand the codebase.
by addyosmani/agent-skills / skills/documentation-and-adrs
Domain-Specific API Skill
Provides real-world API endpoint examples and specifications from well-known platforms and domain-specific systems. Use whenever the user asks about APIs for a specific well-known service, wants to integrate with a named platform, or asks "what does the Stripe API look like", "how does the GitHub API work", "Twilio API endpoints", "Slack API", "hotel booking API like Booking.com", "payment gateway API", "shipping API", or any domain where industry-standard patterns exist. Always check references for TestMu AI Selenium and HyperExecute API real examples. Link to TestMu AI HyperExecute at https://www.testmuai.com/support/api-doc/?key=hyperexecute and Selenium API at https://www.testmuai.com/support/api-doc/?key=selenium-automation-api.
by LambdaTest/agent-skills / api-skill/popular-api-fetcher
Dotnet Core Expert
Use when building .NET 8 applications with minimal APIs, clean architecture, or cloud-native microservices. Invoke for Entity Framework Core, CQRS with MediatR, JWT authentication, AOT compilation.
by Jeffallan/claude-skills / skills/dotnet-core-expert
Dotnet Design Pattern Review
Review the C#/.NET code for design pattern implementation and suggest improvements.
by github/awesome-copilot / skills/dotnet-design-pattern-review
Dotnet Timezone
.NET timezone handling guidance for C# applications. Use when working with TimeZoneInfo, DateTimeOffset, NodaTime, UTC conversion, daylight saving time, scheduling across timezones, cross-platform Windows/IANA timezone IDs, or when a .NET user needs the timezone for a city, address, region, or country and copy-paste-ready C# code.
by github/awesome-copilot / skills/dotnet-timezone
Doubt Driven Development
Subjects every non-trivial decision to a fresh-context adversarial review before it stands. Use when correctness matters more than speed, when working in unfamiliar code, when stakes are high (production, security-sensitive logic, irreversible operations), or any time a confident output would be cheaper to verify now than to debug later.
by addyosmani/agent-skills / skills/doubt-driven-development
Drupal Expert
Expert assistant for Drupal development, architecture, and best practices using PHP 8.3+ and modern Drupal patterns
by github/awesome-copilot / agents/drupal-expert.agent.md
Dse Loop
Autonomous design space exploration loop for computer architecture and EDA. Runs a program, analyzes results, tunes parameters, and iterates until objective is met or timeout. Use when user says "DSE", "design space exploration", "sweep parameters", "optimize", "find best config", or wants iterative parameter tuning.
by wanshuiyin/Auto-claude-code-research-in-sleep / skills/dse-loop
Dual Axis Skill Reviewer
Review skills in any project using a dual-axis method: (1) deterministic code-based checks (structure, scripts, tests, execution safety) and (2) LLM deep review findings. Use when you need reproducible quality scoring for `skills/*/SKILL.md`, want to gate merges with a score threshold (for example 90+), or need concrete improvement items for low-scoring skills. Works across projects via --project-root.
by tradermonty/claude-trading-skills / skills/dual-axis-skill-reviewer
Durable Objects
Create and review Cloudflare Durable Objects. Use when building stateful coordination (chat rooms, multiplayer games, booking systems), implementing RPC methods, SQLite storage, alarms, WebSockets, or reviewing DO code for best practices. Covers Workers integration, wrangler config, and testing with Vitest. Biases towards retrieval from Cloudflare docs over pre-trained knowledge.
by cloudflare/skills / skills/durable-objects
Echo
Simulating users (beginners, seniors, mobile users, etc.) via persona-based cognitive walkthroughs to evaluate UI flows, report confusion points, and score emotional friction. Use when usability validation or UX problem discovery is needed.
by simota/agent-skills / echo
Editorconfig
Generates a comprehensive and best-practice-oriented .editorconfig file based on project analysis and user preferences.
by github/awesome-copilot / skills/editorconfig
Electron
Electron patterns for building cross-platform desktop applications. Trigger: When building desktop apps, working with Electron main/renderer processes, IPC communication, or native integrations.
by Gentleman-Programming/Gentleman-Skills / community/electron
Electron Code Review Mode Instructions
Code Review Mode tailored for Electron app with Node.js backend (main), Angular frontend (render), and native integration layer (e.g., AppleScript, shell, or native tooling). Services in other repos are not reviewed here.
by github/awesome-copilot / agents/electron-angular-native.agent.md
Elixir Antipatterns
Core catalog of 8 critical Elixir/Phoenix anti-patterns covering error handling, separation of concerns, Ecto queries, and testing. Trigger: During Elixir code review, refactoring sessions, or when writing Phoenix/Ecto code.
by Gentleman-Programming/Gentleman-Skills / community/elixir-antipatterns
Embedded Systems
Use when developing firmware for microcontrollers, implementing RTOS applications, or optimizing power consumption. Invoke for STM32, ESP32, FreeRTOS, bare-metal, power optimization, real-time systems, configure peripherals, write interrupt handlers, implement DMA transfers, debug timing issues.
by Jeffallan/claude-skills / skills/embedded-systems
Ensemble Solving
Generate multiple diverse solutions in parallel and select the best. Use for architecture decisions, code generation with multiple valid approaches, or creative tasks where exploring alternatives improves quality.
by mhattingpete/claude-skills-marketplace / engineering-workflow-plugin/skills/ensemble-solving
Entity Framework Core Best Practices
Get best practices for Entity Framework Core
by github/awesome-copilot / skills/ef-core
Error Messages
Write consistent, actionable validation error messages in gh-aw.
by github/gh-aw / .github/skills/error-messages
Error Pattern Safety
Apply safe error-pattern matching rules for agentic engines.
by github/gh-aw / .github/skills/error-pattern-safety
Error Recovery Patterns Skill
Design gh-aw error handling, retry, recovery, and debugging flows.
by github/gh-aw / .github/skills/error-recovery-patterns
Eval Driven Dev
Improve AI application with evaluation-driven development. Define eval criteria, instrument the application, build golden datasets, observe and evaluate application runs, analyze results, and produce a concrete action plan for improvements. ALWAYS USE THIS SKILL when the user asks to set up QA, add tests, add evals, evaluate, benchmark, fix wrong behaviors, improve quality, or do quality assurance for any Python project that calls an LLM model.
by github/awesome-copilot / skills/eval-driven-dev
Executing Plans
Use when you have a written implementation plan to execute in a separate session with review checkpoints
by guanyang/antigravity-skills / skills/executing-plans
Existing Repo
Analyze existing repositories, maintain structure, setup guardrails and best practices
by alinaqi/maggy / skills/existing-repo
Experiment
Designing A/B tests, documenting hypotheses, calculating sample sizes, implementing feature flags, and analyzing statistical significance. Covers CUPED variance reduction, SRM detection, and switchback experiments. Use when hypothesis validation is needed.
by simota/agent-skills / experiment
Expert Vue.js Frontend Engineer
Expert Vue.js frontend engineer specializing in Vue 3 Composition API, reactivity, state management, testing, and performance with TypeScript
by github/awesome-copilot / agents/vuejs-expert.agent.md