Claude Code skills, plugins, subagents, slash commands and mcp servers

hugging-science K-Dense-AI skill A skill to find and evaluate scientific datasets, models, and interactive demos via the Hugging Science catalog. Use it when you need an ML resource for biology, chemistry, genomics, materials science, climate, or physics. CX Codex Cursor GitHub Copilot 1,800installs ginkgo-cloud-lab K-Dense-AI skill Assists with protocol selection, input files, pricing checks, and orders for Ginkgo Bioworks Cloud Lab. Useful for RNA synthesis and automated protein expression. CX Codex Cursor GitHub Copilot 1,800installs primekg K-Dense-AI skill Wraps the PrimeKG precision-medicine CSV in pandas helpers, so the agent can look up typed nodes, neighbours, disease summaries and short paths without leaving the repo. CX Codex Cursor GitHub Copilot 1,800installs library-curator nexu-io skill Pulls images, logos and screenshots out of the OD Library and copies the file into your project, handing back a relative path you can drop into markup. CX Codex Cursor GitHub Copilot 951installs debug-mantra thananon skill Sets a debugging sequence from reproducing a failure through testing hypotheses and recording experiments. Use it for errors, logs, and stack traces. CX Codex Cursor GitHub Copilot 4,800installs langchain-fundamentals langchain-ai skill Guides LangChain agent work with create_agent(), tools, and middleware. Use it when you need saved conversation state, approval flows, or error handling. CX Codex Cursor GitHub Copilot 17,400installs atlassian-mcp https://github.com/Jeffallan skill Skill connects Jira and Confluence to Claude Code, Cursor, and other editors through MCP protocol. Query tasks with JQL, create tickets, search and edit wiki pages directly from your IDE. CX Codex Cursor GitHub Copilot 4,400installs the-fool https://github.com/Jeffallan skill Challenges plans, architectures, and decisions using five structured reasoning modes. Useful for spotting blind spots and failure modes before writing code. CX Codex Cursor GitHub Copilot 4,400installs spec-miner https://github.com/Jeffallan skill A skill for reverse-engineering codebases. Extracts specifications from existing code, maps dependencies, and generates documentation for legacy and undocumented systems. CX Codex Cursor GitHub Copilot 4,400installs security-review getsentry skill Finds injections, XSS, authorization flaws, and other vulnerabilities in code. Reports only high-confidence findings. CX Codex Cursor GitHub Copilot 21,100installs sprites-and-images phaserjs skill Guides agents on creating Sprite and Image objects in Phaser 4. Explains factory methods, texture frames, mixin components, and visual transforms. CX Codex Cursor GitHub Copilot 1,100installs mobile-app-ui-design ceorkm skill Provides mobile UX and UI guidelines for coding agents. Helps generate mobile screens, components, and design flows that follow structured layout rules. CX Codex Cursor GitHub Copilot 11,500installs ads-test AgriciDaniel skill Walks a paid-media experiment from hypothesis to readout: randomization unit, sample size, stopping rule, and a plain-language decision. CX Codex Cursor GitHub Copilot 3,600installs hud Yeachan-Heo skill The hud skill configures a HUD display in Claude Code's statusline, showing git branch, context usage, running subagents, and other metrics. Track session state and keep tabs on complex work without losing context. CX Codex Cursor GitHub Copilot 1,100installs langgraph-human-in-the-loop langchain-ai skill Skill for building LangGraph workflows that pause and wait for human input. Use it to show agent output, request approval, or validate user responses before continuing. CX Codex Cursor GitHub Copilot 17,200installs sql-pro Seth Hobson subagent Helps design database schemas, inspect query plans, and tune SQL for OLTP and OLAP systems. Use it for database optimization or complex analysis. CX Codex Cursor 3,602installs social-publishing ndesv21 skill Publishes and schedules posts across 13 social networks through the SocialClaw API with a single key. Useful for running multi-platform campaigns without handling OAuth for each service. CX Codex Cursor 3,600installs e2e tester-army skill Writes, runs, and debugs web and mobile end-to-end tests with the e2e test runner, combining agent goals with exact Playwright assertions and device checks. CX Codex Cursor GitHub Copilot 1,200installs agentic-actions-auditor trailofbits skill Inspects GitHub Actions workflows for prompt injection risks and insecure AI agent setups. Catches attacker inputs leaking into prompts via event contexts or environment variables. CX Codex Cursor GitHub Copilot 6,700installs post-mortem thananon skill Skill writes an engineering post-mortem after debugging: root cause with code identifiers, symptom, mechanism, the fix, and why it slipped through. Use after validation, before closing the ticket. CX Codex Cursor GitHub Copilot 4,700installs data-scientist VoltAgent Community subagent Subagent for exploratory data analysis, hypothesis testing, and building machine learning models directly in Claude Code. 3,342installs zod-4 prowler-cloud skill Provides validation patterns for Zod 4 and guides migration from Zod 3. It helps write schemas for forms, API payloads, and adapters. CX Codex Cursor GitHub Copilot 1,200installs legacy-modernizer https://github.com/Jeffallan skill Plans incremental legacy-code migration from dependency maps to facades, flags, and rollback steps. Use it when splitting a monolith or upgrading technology without a wholesale replacement. CX Codex Cursor GitHub Copilot 4,300installs salesforce-developer https://github.com/Jeffallan skill Writes Apex classes, builds Lightning Web Components, optimizes SOQL queries, and sets up batch processing on Salesforce. Enforces governor limits and bulkifies code. CX Codex Cursor GitHub Copilot 4,300installs database-optimizer VoltAgent Community subagent This subagent reviews slow queries, execution plans, and indexes. Use it when a database needs query, schema, or configuration tuning. 3,320installs mathmodel-figure-templates jihe520 skill Runs packaged Python and matplotlib scripts to generate publication-grade scientific figures. Useful when you need Taylor diagrams, ROC curves, or correlation grids quickly. CX Codex Cursor GitHub Copilot 1,700installs gh-cli trailofbits skill A skill that redirects GitHub requests from curl and fetch to authenticated gh CLI for repositories, pull requests, and issues. Use it for private repos and higher API limits. CX Codex Cursor GitHub Copilot 6,600installs html-diagram plannotator skill Generates standalone interactive HTML diagrams without external services or build steps. Helps visualize component topology, state transitions, timelines, and quantitative structures. CX Codex Cursor GitHub Copilot 4,100installs visual-pr humanlayer skill A skill that automates pull request descriptions: reads the diff, gathers context, and fills a template so reviewers understand why the change exists and how it's shaped. CX Codex Cursor GitHub Copilot 3,000installs zustand vercel-labs skill This skill integrates Zustand into json-render to sync application state. Use it when your project already relies on Zustand and you need to connect it with components rendered by json-render. CX Codex Cursor GitHub Copilot 1,900installs office-productivity sickn33 skill A wrapper skill that walks the agent through seven phases of office work: documents, spreadsheets, slide decks, format conversion. CX Codex Cursor GitHub Copilot 1,600installs firebase sickn33 skill Guides Firebase architecture, Firestore security rules, and Cloud Functions based on read-heavy query patterns and pricing limits. CX Codex Cursor GitHub Copilot 1,600installs tailwind-design-system sickn33 skill A skill that keeps the agent on Tailwind while you build a design system: tokens, component variants, responsive patterns, accessibility. Useful when the UI drifts. CX Codex Cursor GitHub Copilot 1,600installs copywriting sickn33 skill Skill for writing clear, conversion-focused marketing copy for landing pages and emails. Forces you to understand audience and context first, blocks fabricated claims and statistics. CX Codex Cursor GitHub Copilot 1,600installs prompt-engineer sickn33 skill Transforms unstructured prompts into structured prompts using frameworks like RTF, RISEN, and Chain of Thought. Helpful when a task needs clearer instructions. CX Codex Cursor GitHub Copilot 1,600installs gateway-workers cloudflare skill Skill for building, debugging, and reviewing Cloudflare Workers triggered by Forward actions in Gateway HTTP policies. Work with GatewayMiddleware, context types, and request continuation. CX Codex Cursor GitHub Copilot 7,700installs workflow Vercel Inc. skill Builds durable, resumable tasks with the Vercel Workflow SDK when operations must survive server restarts or pause for external events. CX Codex Cursor GitHub Copilot 5,300installs mcp-developer https://github.com/Jeffallan skill A skill for building and debugging MCP servers and clients in TypeScript or Python, with tool schemas, transport setup and protocol checks in the inspector. CX Codex Cursor GitHub Copilot 4,200installs django-expert https://github.com/Jeffallan skill Guides Django 5.0 and DRF development by enforcing indexed models, ORM query optimization with select_related, and JWT authentication. CX Codex Cursor GitHub Copilot 4,200installs feature-forge https://github.com/Jeffallan skill A skill that runs a requirements interview and turns a feature idea into a spec: EARS requirements, acceptance criteria and an implementation checklist. CX Codex Cursor GitHub Copilot 4,200installs