io.github.sickn33/antigravity-awesome-skills/design-md

Analyze Stitch projects and synthesize a semantic design system into DESIGN.md files

io.github.sickn33/antigravity-awesome-skills/python-performance-optimization

Profile and optimize Python code using cProfile, memory profilers, and performance best practices. Use when debugging slow Python code, optimizing bottlenecks, or improving application performance.

io.github.github/awesome-copilot/code-tour

Use this skill to create CodeTour .tour files — persona-targeted, step-by-step walkthroughs that link to real files and line numbers. Trigger for: "create a tour", "make a code tour", "generate a tour", "onboarding tour", "tour for this PR", "tour for this bug", "RCA tour", "architecture tour", "explain how X works", "vibe check", "PR review tour", "contributor guide", "help someone ramp up", or any request for a structured walkthrough through code. Supports 20 developer personas (new joiner, bug fixer, architect, PR reviewer, vibecoder, security reviewer, and more), all CodeTour step types (file/line, selection, pattern, uri, commands, view), and tour-level fields (ref, isPrimary, nextTour). Works with any repository in any language.

io.github.girijashankarj/cursor-handbook/cursor-setup

Set up cursor-handbook in a new project by cloning, configuring, and validating the .cursor directory. Use when the user asks to install cursor-handbook, set up a new project, or bootstrap Cursor configuration.

io.github.schalkneethling/masonry-gridlanes-wc/css-token-use-validator

Validate CSS custom property usage against token definitions. Use when the user wants to check if CSS variables are properly defined, find unused tokens, detect typos in var() references, audit custom property, or when working between Figma design files and code. Works with single files, directories, or entire projects. Can be used as a Claude Code hook to automatically validate after CSS edits.

io.github.vabole/apple-skills/guide-swiftui-view-refactor

Refactor and review SwiftUI view files with strong defaults for small dedicated subviews, MV-over-MVVM data flow, stable view trees, explicit dependency injection, and correct Observation usage. Use when cleaning up a SwiftUI view, splitting long bodies, removing inline actions or side effects, reducing computed `some View` helpers, or standardizing `@Observable` and view model initialization patterns.

io.github.spencerpauly/awesome-cursor-skills/adding-docker

Dockerize an application with a production-ready Dockerfile, docker-compose setup, and .dockerignore.

io.github.SparkDevNetwork/Rock/css-cleanup

Audit and refactor CSS in Obsidian .obs block files to follow Rock's styling priorities. Replaces inline styles, hard-coded values, and unnecessary scoped CSS with Rock utility classes and CSS variables. Use when the user says "clean up css", "css cleanup", "polish styles", "refactor css", "style audit", "fix the styling", "use rock utilities", or after running /convert-block on a block. Also use when reviewing .obs files and noticing inline styles, hard-coded hex colors, or excessive scoped CSS that could use Rock's utility system. Do NOT use for: writing new blocks, C# changes, JavaScript logic changes, or creating new SCSS files in styles-v2/. Do NOT use for general code review (use /review-conversion instead).

io.github.apconw/Aix-DB/pdf

Comprehensive PDF manipulation toolkit for extracting text and tables, creating new PDFs, merging/splitting documents, and handling forms. When Claude needs to fill in a PDF form or programmatically process, generate, or analyze PDF documents at scale.

io.github.UnicomAI/wanwu/pdf

Use this skill whenever the user wants to do anything with PDF files. This includes reading or extracting text/tables from PDFs, combining or merging multiple PDFs into one, splitting PDFs apart, rotating pages, adding watermarks, creating new PDFs, filling PDF forms, encrypting/decrypting PDFs, extracting images, and OCR on scanned PDFs to make them searchable. If the user mentions a .pdf file or asks to produce one, use this skill.

io.github.github/awesome-copilot/mcp-security-audit

Audit MCP (Model Context Protocol) server configurations for security issues. Use this skill when: - Reviewing .mcp.json files for security risks - Checking MCP server args for hardcoded secrets or shell injection patterns - Validating that MCP servers use pinned versions (not @latest) - Detecting unpinned dependencies in MCP server configurations - Auditing which MCP servers a project registers and whether they're on an approved list - Checking for environment variable usage vs. hardcoded credentials in MCP configs - Any request like "is my MCP config secure?", "audit my MCP servers", or "check .mcp.json" keywords: [mcp, security, audit, secrets, shell-injection, supply-chain, governance]

io.github.github/awesome-copilot/react19-test-patterns

Provides before/after patterns for migrating test files to React 19 compatibility, including act() imports, Simulate removal, and StrictMode call count changes.

io.github.github/awesome-copilot/react19-source-patterns

Reference for React 19 source-file migration patterns, including API changes, ref handling, and context updates.

io.github.github/awesome-copilot/react18-string-refs

Provides exact migration patterns for React string refs (ref="name" + this.refs.name) to React.createRef() in class components. Use this skill whenever migrating string ref usage - including single element refs, multiple refs in a component, refs in lists, callback refs, and refs passed to child components. Always use this skill before writing any ref migration code - the multiple-refs-in-list pattern is particularly tricky and this skill prevents the most common mistakes. Use it for React 18.3.1 migration (string refs warn) and React 19 migration (string refs removed).

io.github.github/awesome-copilot/react18-enzyme-to-rtl

Provides exact Enzyme → React Testing Library migration patterns for React 18 upgrades. Use this skill whenever Enzyme tests need to be rewritten - shallow, mount, wrapper.find(), wrapper.simulate(), wrapper.prop(), wrapper.state(), wrapper.instance(), Enzyme configure/Adapter calls, or any test file that imports from enzyme. This skill covers the full API mapping and the philosophy shift from implementation testing to behavior testing. Always read this skill before rewriting Enzyme tests - do not translate Enzyme APIs 1:1, that produces brittle RTL tests.

io.github.github/awesome-copilot/react-audit-grep-patterns

Provides the complete, verified grep scan command library for auditing React codebases before a React 18.3.1 or React 19 upgrade. Use this skill whenever running a migration audit - for both the react18-auditor and react19-auditor agents. Contains every grep pattern needed to find deprecated APIs, removed APIs, unsafe lifecycle methods, batching vulnerabilities, test file issues, dependency conflicts, and React 19 specific removals. Always use this skill when writing audit scan commands - do not rely on memory for grep syntax, especially for the multi-line async setState patterns which require context flags.

io.github.github/awesome-copilot/react18-legacy-context

Provides the complete migration pattern for React legacy context API (contextTypes, childContextTypes, getChildContext) to the modern createContext API. Use this skill whenever migrating legacy context in class components - this is always a cross-file migration requiring the provider AND all consumers to be updated together. Use it before touching any contextTypes or childContextTypes code, because migrating only the provider without the consumers (or vice versa) will cause a runtime failure. Always read this skill before writing any context migration - the cross-file coordination steps here prevent the most common context migration bugs.

io.github.AlexAI-MCP/hermes-CCC/docker-management

Manage Docker containers, images, volumes, networks, and Compose stacks - lifecycle ops, debugging, cleanup, and Dockerfile optimization.

io.github.dotnet/core/api-diff

Download, inspect, and diff .NET APIs for a given build or release. Use `dotnet-inspect` to verify that APIs actually exist in the shipped packages, detect missed reverts, and generate before/after API diffs. Use `RunApiDiff.ps1` when a full markdown diff report is needed.

io.github.coleam00/Archon/docker-extend

Use when: User wants to extend Docker with custom tools, personalize the Docker environment, or set up user-specific Docker customization. Triggers: 'extend docker', 'docker-extend', 'add tools to docker', 'customize docker', 'add my tools to the container', 'personalize docker setup', 'docker user setup', 'install tools in docker'. Does: Interactively sets up Dockerfile.user and docker-compose.override.yml so users can add personal tools to their Docker environment without affecting maintainer files or committing user-specific config to git.

io.github.openshift/lightspeed-console/css-review

Review CSS for coding style, PatternFly token usage, and best practices. Use when the user asks to review CSS, check styles, or audit CSS files.

io.github.CopilotKit/CopilotKit/mcp-apps-builder

**MANDATORY for ALL MCP server work** - mcp-use framework best practices and patterns. **READ THIS FIRST** before any MCP server work, including: - Creating new MCP servers - Modifying existing MCP servers (adding/updating tools, resources, prompts, widgets) - Debugging MCP server issues or errors - Reviewing MCP server code for quality, security, or performance - Answering questions about MCP development or mcp-use patterns - Making ANY changes to server.tool(), server.resource(), server.prompt(), or widgets This skill contains critical architecture decisions, security patterns, and common pitfalls. Always consult the relevant reference files BEFORE implementing MCP features.

io.github.secondsky/claude-skills/mobile-app-debugging

Mobile app debugging for iOS, Android, cross-platform frameworks. Use for crashes, memory leaks, performance issues, network problems, or encountering Xcode instruments, Android Profiler, React Native debugger, native bridge errors.

io.github.Intelligent-Internet/ii-agent/pdf

Comprehensive PDF manipulation toolkit for extracting text and tables, creating new PDFs, merging/splitting documents, and handling forms. When Claude needs to fill in a PDF form or programmatically process, generate, or analyze PDF documents at scale.