GitHub Copilot skills, plugins, subagents, slash commands and mcp servers

Delphi Expert official github subagent Assists with Object Pascal development in Delphi projects. It covers VCL, FMX, FireDAC data access, memory safety, and unit registration in project files. ★ 40,369repo stars Declarative Agents Architect official github subagent Designs Microsoft 365 Copilot declarative agents using the v1.5 schema. Generates TypeSpec definitions, validates character constraints, and configures tooling. ★ 40,369repo stars Critical thinking mode instructions official github subagent Forces the engineer to justify technical decisions by repeatedly asking "Why?". It questions assumptions without modifying project files. ★ 40,369repo stars Context7-Expert official github subagent This subagent checks library documentation through Context7 and uses current syntax in its answers. Use it for framework and package questions. ★ 40,369repo stars VSCode Tour Expert official github subagent Subagent that creates .tour files — interactive step-by-step codebase walkthroughs in VSCode CodeTour format. ★ 40,369repo stars Clojure Interactive Programming official github subagent Clojure pair-programming agent enforcing REPL-first workflows before saving files. It prevents silent fallbacks and protects pure functional architecture. ★ 40,369repo stars Blueprint Mode official github subagent Executes strict workflows (Debug, Express, Main, Loop) to deliver clean fixes without guesses or conversational fluff. Best for disciplined code changes. ★ 40,369repo stars Bicep Planning official github subagent Bicep Planning builds a structured Azure Bicep implementation plan and saves it as Markdown. Use it before creating infrastructure resources and configuration. ★ 40,369repo stars Bicep Specialist official github subagent Writes Azure Bicep templates following Azure Verified Modules and best practices. Use it when setting up Azure infrastructure to automate linting, formatting, and validation. ★ 40,369repo stars Azure AVM Bicep mode official github subagent Creates, updates, and reviews Azure Bicep IaC using Azure Verified Modules. Helps configure cloud resources according to verified Microsoft practices. ★ 40,369repo stars Azure SaaS Architect mode instructions official github subagent Configures an AI assistant into an Azure SaaS architect for multitenant platforms. Focuses on tenant isolation, scale units, and Well-Architected SaaS patterns. ★ 40,369repo stars aws-serverless-architect official github subagent Guides AWS serverless architecture design using Lambda, API Gateway, and DynamoDB. Useful when you need ready IaC templates and event-driven patterns. ★ 40,369repo stars aws-principal-architect official github subagent This subagent reviews AWS architecture through the Well-Architected Framework and suggests specific services and next steps. Use it when planning infrastructure or weighing architectural trade-offs. ★ 40,369repo stars AWS Incident Triage official github subagent Drives structured AWS incident investigations from CloudWatch alarms to root-cause hypotheses using metrics, logs, and traces without touching live infrastructure. ★ 40,369repo stars aws-cloud-expert official github subagent Subagent for designing, deploying, and optimizing AWS workloads. Covers serverless, containers, databases, networking, IaC, and security through the AWS Well-Architected Framework lens. ★ 40,369repo stars Atlassian Requirements to Jira official github subagent Converts requirement files into Jira epics and user stories with duplicate checks. It saves time when setting up a fresh project backlog. ★ 40,369repo stars Senior Cloud Architect official github subagent Designs system architecture, details non-functional requirements, and renders Mermaid diagrams without writing code. ★ 40,369repo stars ai-team-producer official github subagent Remy acts as an AI producer to plan work, coordinate Dev and QA roles, and prepare pull requests without writing application code. ★ 40,369repo stars ai-team-dev official github subagent A subagent that carries a task from reading the code to an opened pull request. Useful when you need a feature or a bug fix inside an unfamiliar repo. ★ 40,369repo stars ai-readiness-reporter official github subagent Runs an AgentRC readiness assessment and builds a standalone HTML report in reports/index.html. Helps evaluate how prepared a repository is for AI agents. ★ 40,369repo stars AEM Front-End Specialist official github subagent Builds Adobe Experience Manager components using HTL and Tailwind CSS v4, extracting design tokens directly from Figma. ★ 40,369repo stars Universal PR Comment Addresser official github subagent Handles pull request review comments one by one. The subagent applies minimal edits and covers changes with tests. ★ 40,369repo stars Accessibility Runtime Tester official github subagent Tests web apps for keyboard operability, focus traps, form error states, and live region updates in runtime. Useful for catching WCAG regressions before deploy. ★ 40,369repo stars C# Expert official github subagent Guides the assistant through .NET and C# tasks. It enforces framework conventions, safe async/await patterns, and clean test structure. ★ 40,369repo stars work-hub official James Montemagno plugin A cross-repository command center for GitHub Copilot that supports onboarding, focus planning, repo health checks, work signals, and session cleanup. ★ 40,369repo stars windows-app-storage-inspector-cleanup official Daniel Scott-Raynsford plugin Inspects Windows app storage, shows disk usage, and safely moves approved cleanup files to the Recycle Bin. Helpful when clearing drive space. ★ 40,369repo stars where-was-i official Aaron Powell plugin The plugin rebuilds your development context from the branch, commits, uncommitted work, and PR clues, then starts a prompt to resume the task. ★ 40,369repo stars visual-pr official Awesome Copilot Community plugin Captures UI screenshots with Playwright, annotates elements, and embeds before-and-after views in PR descriptions. Helpful for any layout or frontend change. ★ 40,369repo stars uizze official UIZZE plugin uizze helps GitHub Copilot build product-specific interfaces and finish the screen states that affect whether a UI is usable. ★ 40,369repo stars typespec-m365-copilot official Awesome Copilot Community plugin Scaffolds TypeSpec declarative agents and API plugins for Microsoft 365 Copilot extensibility. Useful when defining REST operations, auth, and Adaptive Cards. ★ 40,369repo stars token-pacman official James Montemagno plugin Renders live session AI-credit usage as an interactive Pac-Man board. Useful when you need a visible warning before hitting your session limit. ★ 40,369repo stars technical-spike official Awesome Copilot Community plugin Create and research technical spikes directly in GitHub Copilot. It helps resolve unknowns and test assumptions before drafting specifications or writing code. ★ 40,369repo stars swift-mcp-development official Awesome Copilot Community plugin This plugin helps build Model Context Protocol servers in Swift with the official MCP Swift SDK. Use it when you need a project generator and Swift concurrency guidance. ★ 40,369repo stars structured-autonomy official Awesome Copilot Community plugin Splits work into upfront planning and thrifty implementation. It adds commands to plan, generate, and implement code changes in GitHub Copilot. ★ 40,369repo stars software-engineering-team official Awesome Copilot Community plugin Seven agents cover tasks from UX research and architecture reviews to security and DevOps. Pick a specialist for the work at hand. ★ 40,369repo stars skill-image-gen official adamd9 plugin Generates images from text prompts directly inside your editor. Useful when building game sprites, app icons, and mockups during coding. ★ 40,369repo stars site-studio official Ayan Gupta plugin site-studio helps you plan a personal website section by section, write content with an agent, and track changes as the work moves forward. ★ 40,369repo stars signals-dashboard official jennyf19 plugin Displays real-time Workshop agent signals, tracks cost-aware desk profiles, and handles fail-closed local task delegation. ★ 40,369repo stars security-best-practices official Awesome Copilot Community plugin Audit AI prompts for safety vulnerabilities, bias, and performance inside GitHub Copilot. Helps refine prompts using structured testing methods. ★ 40,369repo stars ruby-mcp-development official Awesome Copilot Community plugin Toolkit for building Model Context Protocol servers in Ruby using the official MCP Ruby SDK gem, with support for Rails integration. ★ 40,369repo stars