New in the catalog this week

nano-banana-pro-openrouter official github skill Creates and edits images through OpenRouter with Gemini 3 Pro Image. Use it for text-to-image work, single-image changes, or compositions from source images. GitHub Copilot 9,910installs architecture-blueprint-generator official github skill Analyzes a codebase and creates an architecture blueprint with components, dependencies, and diagrams. Use it before extending a project or onboarding developers. GitHub Copilot 12,196installs agentic-eval official github skill Use evaluation and refinement patterns to improve AI agent outputs. It suits code, reports and analysis with defined quality criteria. GitHub Copilot 10,213installs editorconfig official github skill Creates an .editorconfig after reviewing project files and formatting preferences. Use it when a project needs consistent editor rules. GitHub Copilot 10,960installs python-mcp-server-generator official github skill Builds Python MCP servers that expose functions, APIs, or databases as tools for AI clients. Use it when starting a server with MCP Python SDK v2. GitHub Copilot 10,418installs plantuml-ascii official github skill Creates text-based PlantUML diagrams for terminals, README files, and docs without images. Use it when a diagram should live alongside source code. GitHub Copilot 9,740installs csharp-docs official github skill Guides XML documentation for C# types and members. Use it when a project needs consistent API comments and tag conventions. GitHub Copilot 9,666installs breakdown-plan official github skill Builds a GitHub Issues plan from a PRD, technical breakdown and implementation plan. Use it when a feature needs linked work items and clear acceptance criteria. GitHub Copilot 9,294installs create-architectural-decision-record official github skill Creates an architectural decision record for a project. Use it to document why a solution was chosen and what follows from that choice. GitHub Copilot 10,176installs breakdown-feature-prd official github skill Creates a feature PRD from a parent Epic and a team request. Use it when requirements need to be set before a technical specification is written. GitHub Copilot 10,022installs penpot-uiux-design official github skill A skill for building interfaces in Penpot via MCP tools: web, mobile, dashboards, design systems. Works with Penpot API directly from your code editor. GitHub Copilot 12,782installs typescript-mcp-server-generator official github skill Generates a TypeScript MCP server project with tools, resources, and configuration. Use it when a new server should start on the MCP TypeScript SDK v2. GitHub Copilot 12,050installs dotnet-upgrade official github skill Plan a .NET upgrade by reviewing project dependencies, choosing a migration order and preparing post-upgrade checks. GitHub Copilot 11,475installs devops-rollout-plan official github skill Builds rollout plans for infrastructure and application changes, covering preflight checks, verification, rollback, and communication. Useful for higher-risk releases. GitHub Copilot 9,681installs create-agentsmd official github skill Generates an AGENTS.md file with repository context and instructions for coding agents. Use it when project rules need a clear, agent-focused home. GitHub Copilot 13,104installs bigquery-basics official google skill Manages BigQuery resources and runs SQL queries. Use it to create datasets, tables and views, or handle basic data ingestion and analysis. Claude Code Gemini CLI CX Codex 17,678installs make-repo-contribution official github skill This skill checks repository rules before issues, branches, commits, or pull requests, then guides the contribution workflow. GitHub Copilot 11,073installs cloud-run-basics official google skill This skill helps an agent manage Cloud Run services, jobs, and worker pools when a project needs HTTP deployment, scheduled work, or pull-based background processing. Claude Code Gemini CLI CX Codex 17,532installs web-design-reviewer official github skill This skill inspects a running website, spots layout, responsive, and accessibility issues, and can fix them in the source code. Use it when a UI review should lead to verified code changes. GitHub Copilot 13,957installs pdftk-server official github skill This GitHub Copilot skill guides PDF work through the pdftk CLI, from merging files to filling forms and applying stamps. Use it when PDF changes belong in a terminal workflow. GitHub Copilot 9,978installs dataverse-python-production-code official github skill Guides GitHub Copilot to write Python code for the Dataverse SDK with error handling, request retries, and OData query rules. GitHub Copilot 9,803installs playwright-explore-website official github skill Explores a website through Playwright MCP, records user flows, and proposes test cases. Use it when you need a starting point for UI testing. GitHub Copilot 14,792installs refactor-plan official github skill This skill investigates a codebase and writes a step-by-step multi-file refactor plan before edits begin. Use it when the proposed change needs review first. GitHub Copilot 12,965installs update-implementation-plan official github skill Updates an existing implementation plan for new requirements, refactoring, package upgrades, or architecture changes. Use it when a plan needs actionable tasks and checks. GitHub Copilot 11,107installs java-junit official github skill Writes, reviews and fixes Java tests with JUnit, AssertJ and Mockito. Use it when adding, refactoring or debugging tests in Maven and Gradle projects. GitHub Copilot 11,632installs create-implementation-plan official github skill This skill creates a Markdown implementation plan for features, refactoring, package upgrades, or infrastructure work. Use it when an agent needs an explicit task breakdown. GitHub Copilot 12,558installs csharp-xunit official github skill This skill guides C# unit testing with XUnit, including data-driven cases. Use it when creating or reviewing tests in a .NET project. GitHub Copilot 10,328installs game-engine official github skill Guides GitHub Copilot when building browser games and game engines with HTML5 and JavaScript. Use it for 2D or 3D rendering, physics, collisions, and controls. GitHub Copilot 13,140installs sql-optimization official github skill Reviews SQL performance issues, index choices, and slow-query patterns. Use it when tuning queries for MySQL, PostgreSQL, SQL Server, or Oracle. GitHub Copilot 15,701installs dotnet-best-practices official github skill Guides reviews and edits of selected .NET/C# code with project rules for structure, DI, tests, logging and security. Use it when changing an existing solution. GitHub Copilot 15,752installs javascript-typescript-jest official github skill This skill guides GitHub Copilot in writing JavaScript and TypeScript tests with Jest. Use it when you want concrete patterns for mocks, async tests, and test organization. GitHub Copilot 13,172installs java-docs official github skill Guides Javadoc work for Java types while following the project’s documentation style. Use it when adding or revising API comments. GitHub Copilot 10,752installs pytest-coverage official github skill Runs pytest with coverage, flags lines that tests miss, and guides work toward 100% line coverage. Use it when coverage gaps need concrete test cases. GitHub Copilot 12,826installs microsoft-code-reference official github skill Checks Microsoft APIs and SDK code against official docs, finds working samples, and helps debug Azure and .NET issues. GitHub Copilot 14,251installs memory-merger official github skill Moves mature notes from a domain memory file into its instruction file. Useful when project guidance grows through reviewed lessons. GitHub Copilot 12,846installs postgresql-optimization official github skill Helps developers use PostgreSQL features such as JSONB, arrays, indexes, full-text search, window functions, and extensions. GitHub Copilot 16,436installs apple-appstore-reviewer official github skill Reviews an iOS project from an Apple App Store reviewer’s perspective and ranks rejection risks. Use it before submitting an app for review. GitHub Copilot 11,295installs create-specification official github skill This skill creates a structured Markdown specification with requirements, constraints, and interfaces. Use it when an AI agent needs a clear project contract. GitHub Copilot 13,537installs chrome-devtools official github skill Controls a live Chrome browser through Chrome DevTools MCP for page actions, debugging, and performance traces. Use it when an agent needs to inspect a web interface. GitHub Copilot 15,258installs postgresql-code-review official github skill Reviews SQL and database schemas for PostgreSQL-specific issues. Use it before reviewing migrations, JSONB queries, functions, or access rules. GitHub Copilot 12,608installs