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

iii-core-primitives iii-hq skill Guides agents on iii engine primitives: functions, triggers, workers, and invocation modes across TypeScript, Python, and Rust. Claude Code CX Codex Cursor 4,000installs iii-error-handling iii-hq skill Skill teaches agents to read iii engine and SDK error codes, tell network failures from access denials, know when it is safe to retry. Use it when calling remote functions from Node, Python, Rust, or browser code. Claude Code CX Codex Cursor 4,000installs adev-writing-guide angular skill Guidelines for writing Angular documentation in adev/src/content. It enforces Google Technical Writing standards, Angular markdown extensions, and custom code components. Claude Code CX Codex Cursor 912installs seo-local AgriciDaniel skill Audits local SEO across Google Business Profile signals, NAP consistency, reviews, and schema. Helps prepare local business pages for map pack visibility. Claude Code CX Codex Cursor 7,100installs seo-backlinks AgriciDaniel skill This skill analyzes a site's backlink profile, anchor text, suspicious links, and gaps against a competitor. Use it when the task focuses on backlinks or referring domains. Claude Code CX Codex Cursor 7,100installs docs-write metabase skill This skill helps write and edit Markdown and MDX in Metabase’s style. Use it when a documentation file needs a clear structure, checked examples, and consistent formatting. Claude Code CX Codex Cursor 2,100installs typescript-write metabase skill Skill for writing and editing TypeScript and JavaScript code to Metabase standards. Enforces strict typing without any and requires type checking before completion. Claude Code CX Codex Cursor 2,100installs firecrawl-download firecrawl skill Downloads an entire website or specific sections into local markdown files and screenshots. Useful for keeping offline docs ready for an agent. Claude Code CX Codex Cursor 79,800installs golang-uber-fx samber skill Skill for uber-go/fx — a dependency injection framework with lifecycle hooks, module system, and graceful shutdown. Useful if your project already uses fx or you're migrating to it for long-running services. Claude Code CX Codex Cursor 36,500installs reference-compiler-cli angular skill A skill explaining how Angular Compiler (ngtsc) works internally: decorator compilation, the traits system, and code transformation. Use it when working with packages/compiler-cli. Claude Code CX Codex Cursor 909installs newsletter-generation bytedance skill Generates professional email digests and newsletters with topic research via web search, multi-source curation, and ready-to-publish markdown output. Claude Code CX Codex Cursor 1,800installs golang-uber-dig samber skill This skill helps wire Go application dependencies with uber-go/dig. Use it when registering constructors and resolving an application graph at startup. Claude Code CX Codex Cursor 36,400installs threejs nexu-io skill Guides the agent in building browser 3D scenes, materials, interactive controls, and post-processing with Three.js. Claude Code CX Codex Cursor 3,400installs creative-director nexu-io skill This skill takes a creative concept from brief to presentation and checks it on three axes. Use it for campaign ideas and creative critique. Claude Code CX Codex Cursor 3,400installs design-brief nexu-io skill Parses an I-Lang design brief into a concrete spec with palette, typography, density, and constraints. Eliminates ambiguity from phrases like "make it professional." Claude Code CX Codex Cursor 3,400installs pipeline-review official anthropics skill Evaluates stage-by-stage pipeline health, aging deals, and coverage from CRM records or file exports. Handy for weekly sales reviews. Claude Code CX Codex Cursor 2,800installs policy-lookup official anthropics skill Searches and explains company policies in plain language. Answers questions about PTO, remote work, travel, and benefits by connecting to handbooks or knowledge bases. Claude Code CX Codex Cursor 2,800installs vendor-check official anthropics skill Skill checks vendor agreements across CLM, CRM, email, and document storage in one report, flags missing contracts and expiration dates. Use when onboarding a vendor or renewing an agreement. Claude Code CX Codex Cursor 2,800installs kb-article official anthropics skill Converts resolved support tickets and recurring questions into knowledge base articles. Helps document workarounds and fixes using customer-facing language. Claude Code CX Codex Cursor 2,800installs brief official anthropics skill Builds legal briefings from connected sources such as email, calendars, and contracts. Use it for a daily scan, research on a legal topic, or incident context. Claude Code CX Codex Cursor 2,800installs vendor-review official anthropics skill Evaluates software and service vendors by modeling total cost of ownership, auditing vendor risk, and preparing negotiation points before signing. Claude Code CX Codex Cursor 2,800installs cowork-plugin-customizer official anthropics skill Tailor a plugin to an organization's tools and workflows. Use it to fill in a template or make a focused change to an existing plugin. Claude Code CX Codex Cursor 2,800installs change-request official anthropics skill Creates change management requests with impact analysis, risk assessment, and rollback plans. Use it before CAB reviews or major production deployments. Claude Code CX Codex Cursor 2,800installs create-cowork-plugin official anthropics skill This skill guides plugin creation from the first idea to a packaged .plugin file. Use it when you need to design a new plugin from scratch. Claude Code CX Codex Cursor 2,800installs improve-ui ibelick skill Audits an interface against its own design system, finds proven inconsistencies, and writes fix plans for another agent without touching source. Claude Code CX Codex Cursor 7,800installs expo-ui expo skill A skill for building interfaces that compile to real native code: SwiftUI on iOS, Jetpack Compose on Android. Helps the agent use the right component instead of reaching for Reanimated or heavy community libraries. Claude Code CX Codex Cursor 31,600installs premium-frontend-ui official Utkarsh Patrikar skill Guides GitHub Copilot when building animated web interfaces. Use it for a visually distinctive landing page or interactive portfolio. 4,900installs expo-native-ui expo skill Guides your coding agent in building native-feeling Expo screens with Apple HIG styling, @expo/ui components, SF Symbols, and semantic colors. Claude Code CX Codex Cursor 31,400installs reverse-engineering zhaoxuya520 skill Guides code agents through static and dynamic analysis of binaries, bytecode, and firmware. Useful when dissecting obfuscated logic before exploitation. Claude Code CX Codex Cursor 1,800installs analyzing-financial-statements official anthropics skill Computes key financial ratios and metrics from financial statements for investment analysis. Useful for inspecting profitability, liquidity, and equity valuation. Claude Code CX Codex Cursor 347installs php-pro https://github.com/Jeffallan skill Enforces PHP 8.3+ standards across Laravel and Symfony projects with strict typing, PHPStan level 9 checks, and automated Pest tests. Claude Code CX Codex Cursor 15,500installs seo-page AgriciDaniel skill Audits one URL across on-page SEO, content, metadata, schema, images, and performance signals. Use it when you need a focused review of a single page. Claude Code CX Codex Cursor 6,900installs cmux-testing manaflow-ai skill Skill for choosing verification scopes, adding tests, and validating Swift test targets in the cmux project. Decides what local and CI evidence a change needs. Claude Code CX Codex Cursor 4,900installs analytics-events metabase skill A skill that teaches coding agents how to add Snowplow analytics events to the Metabase frontend. Use it when tracking clicks, form submissions, and entity creation. Claude Code CX Codex Cursor 2,000installs clojure-review metabase skill Reviews Clojure and ClojureScript code against Metabase engineering guidelines and flags styling mistakes in diffs. Claude Code CX Codex Cursor 2,000installs clojure-write metabase skill This skill guides REPL-driven Clojure and ClojureScript development and refactoring. Use it when functions need step-by-step checks. Claude Code CX Codex Cursor 2,000installs sox-testing official anthropics skill Builds sample selections, testing workpapers, and control assessments for SOX 404. Use it to plan a control test for a specified period. Claude Code CX Codex Cursor 2,700installs signature-request official anthropics skill Prepares documents for electronic signature, runs a pre-signing checklist, and configures signer routing. Useful when finalized contracts are ready for execution. Claude Code CX Codex Cursor 2,700installs people-report official anthropics skill Skill to generate headcount, attrition, diversity, and org health reports from HR data. Pulls snapshots by team, analyzes turnover trends and flight risk indicators across the organization. Claude Code CX Codex Cursor 2,700installs draft-response official anthropics skill Drafts customer-facing replies shaped around the situation, channel, and relationship. Use it for product questions, escalations, outages, delays, feature refusals, and billing issues. Claude Code CX Codex Cursor 2,700installs