Coding standards, frameworks, refactoring, and code review (16.7K skills)
Migrate Java code from javax.* to jakarta.*, updating affected dependencies and configuration while preserving packages that belong to the JDK. Check builds and tests, then summarize changed files and any remaining manual steps.
Integrate external services by finding supported APIs and SDKs, the libraries used to call them. Use context-matic to check authentication, data definitions, and available methods, then guide implementation and record completed integration milestones.
Build Helidon 4 applications on Java 21 or later with guidance for SE and MP. Apply practical patterns for HTTP endpoints, database access, configuration, testing, and security while accounting for API changes from Helidon 3.
Generate an MCP server, a service exposing tools to AI agents, and a Power Platform custom connector for Copilot Studio. Outputs include connector definitions, authentication settings, request handling, individual tools, and deployment configuration.
Use the command line to discover and run tools on MCP servers, which connect agents to external systems. Inspect required inputs, pass JSON arguments, and retrieve results as JSON or raw text for scripts.
Create a Kotlin MCP server, which connects AI agents to external tools, using the official SDK. Generate a Gradle project with tool implementations, input validation, configuration, basic tests, and setup documentation.
Simplify Java methods and constructors by removing unused or redundant parameters. The skill adjusts definitions and internal calls, preserves existing functionality, and returns complete Java 17 code with comments explaining each removed parameter.
Move GitHub labels and Project V2 field values into organization-wide issue fields, structured properties shared across repositories. Review mappings and conflicts before migration, preserve existing values, and optionally remove migrated labels.
Prevent recurring coding-agent mistakes by turning repository evidence into specific instructions, automated checks, regression tests, and failure records. Also checks whether guidance has become outdated and documents changes, verification results, and follow-up work in an adoption report.
Prepare repository contributions by checking existing guidelines, related issues, branch naming rules, commit formats, and pull request templates. Organize changes into logical commits and assemble submissions that follow the project's documented contribution process.
Write and refine Javadoc comments for Java types and members. Apply consistent summaries and tags for parameters, return values, exceptions, inherited behavior, code examples, version information, and deprecated members with suggested alternatives.
Build web apps connecting a CopilotKit React interface to agents hosted in Microsoft Foundry. Covers AG-UI, the communication protocol between them, plus tool approvals, conversation history, shared state, deployment, debugging, and dependency upgrades.
Create concise commit messages from a code diff, a file list, or a description of changes. The skill selects one emoji that matches the change’s purpose, follows gitmoji conventions, and explains the choice without running Git commands.
Compare two versions of a project and turn migration patterns into instructions for GitHub Copilot. Document API replacements, new conventions, obsolete patterns, and validation steps so future code changes follow the same approach.
Build browser games and game engines with HTML5, Canvas, WebGL, and JavaScript. Starter templates and reference guides support 2D and 3D graphics, controls, collision detection, audio, multiplayer features, performance improvements, and publishing.
Analyze Git changes, group related files for staging, and create commits using Conventional Commits, a structured message format. Infer the change type and scope from the diff, with optional user overrides for the type, scope, and description.
Build Blazor interfaces with Microsoft Fluent UI components. The skill guides library setup, forms, selection controls, dialogs, notifications, and themes, and helps troubleshoot missing interface elements caused by provider configuration or JavaScript integration issues.
Review punctuation in code, comments, and text files using a policy that favors the plain hyphen over em and en dashes, while accounting for exceptions involving existing data and explicitly requested literary or news text.
Analyze current Git changes to choose a branch for a feature, release, or urgent fix. Create a descriptive name and switch to the new branch using Git Flow, a structured approach to managing development branches.
Generate database relationship diagrams from Entity Framework Core models, mappings, and migrations. Produce D2 diagram source showing tables, keys, relationships, and constraints, with display options for columns and grouping. The d2 CLI can render SVG or PNG images.
Set up GitHub Copilot for a new project with instructions, reusable skills, and specialized agents tailored to its technology stack. Add a coding agent environment workflow when GitHub Actions is used, plus setup and customization guidance.
Upload local screenshots, images, PDFs, archives, and videos to GitHub, then embed them in pull requests, issues, or comments. Use gh-attach to obtain attachment URLs and download existing GitHub attachments to a specified local destination.
Create a Go server for MCP, a protocol that connects AI agents to tools and data. Generate a structured project using the official SDK, with typed tools, configuration, error handling, tests, and setup documentation.
Analyze an existing project's folders and produce a guide explaining directory purposes, naming conventions, and file placement. Choose a tree, list, or table, and optionally include templates for adding features consistently with the project's observed structure.