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Has the agent settle on a clear aesthetic direction first, then write distinctive, production-ready frontend interfaces that avoid the generic AI look. Official Anthropic plugin.

Anthropic's knowledge-work plugin marketplace, bundling skills, commands and connectors by role: sales, support, product, marketing, legal, finance, HR, data and more, plus many partner plugins. Built mainly for Cowork; also works in Claude Code.

UI/UX design knowledge base plugin with searchable UI styles, color palettes, font pairings, charts and guidelines for 20+ tech stacks; generates complete design system recommendations by product type. Needs Python 3 installed locally.

Frontend design quality plugin: one skill plus 24 commands (audit, critique, polish and more) and 61 built-in deterministic rules that find common design flaws in AI-generated interfaces and fix them one by one.

Support and sales plugin with two subagents: one handles support replies, ticket triage and help docs; the other writes cold email sequences, follow-up cadences, quote templates and objection handling. Prompts only; no direct CRM connection.

Accessibility review plugin with an audit command, a UI validation subagent, and WCAG 2.2 and screen reader testing skills. Before design reviews or launch, the agent checks contrast, keyboard use and screen reader support and suggests fixes. For Claude Code; automated checks need Node.js.

UI/UX design plugin from the wshobson/agents marketplace with 3 subagents, 9 skills and commands for design review, component creation and accessibility audits, covering design tokens, WCAG 2.2, responsive layout, iOS HIG and Material Design 3 for in-code UI design and review.

Has the agent build single-file HTML interactive playgrounds: visual controls on one side, live preview on the other, and a prompt to copy back into Claude. Templates for design tuning, data exploration, concept maps, doc annotation, code review and architecture diagrams. By Anthropic.

Anthropic's official knowledge work plugin: one question searches your connected chat, email, cloud docs, wiki and project tools at once and returns a sourced answer; can also produce daily or weekly digests. Preset MCP connectors for Slack, Notion, Atlassian, Asana and more, each needing auth.

Official Slack (Salesforce) plugin in Anthropic's knowledge work marketplace: connects Slack's hosted MCP to search and send messages, read channels and threads, and manage canvases, with commands for channel digests, standup updates and announcements. Needs workspace admin approval.

Customer support plugin: triages and prioritizes tickets with routing suggestions, drafts customer replies, packages escalations, researches customer issues across sources and turns resolved issues into knowledge base articles. Official from Anthropic.

Plugin for design teams: design critiques, design system audits, UX copy, accessibility checks, user research synthesis and developer handoff notes. Official from Anthropic; works best with Figma connected.

Content creation plugin by Baoyu (JimLiu): infographics, article illustrations, covers, slide decks and translation, plus Xiaohongshu image cards and publishing to WeChat Official Accounts, Weibo and X. Needs Node.js; image generation needs an OpenAI, Google or Tongyi Wanxiang API key.

Official plugin for Pascal, an open-source 3D architecture editor: lets agents create, edit and validate 3D models of rooms and floors over MCP and check furniture placement for collisions or blocked doors. Local use needs the Pascal CLI (Node.js 22.13+); hosted projects need an API key.

OpenAI's official Codex plugin that starts from a brief, product shots or references to generate marketing concepts, mood boards, product scenes, ad directions and social assets, compared and iterated on a reviewable board. Works with Figma and Canva.

OpenAI's official Codex plugin marketplace (openai-curated) with 60+ plugins such as Figma, Notion, GitHub, Stripe and Vercel, each bundling skills, MCP servers and app connections into one install.

OpenAI's official Codex plugin that turns early product ideas, live pages or screenshots into interactive prototypes, proposing a few visual directions before building. Also reviews user flows, researches user pain points and checks accessibility issues.

MagicPath's official Codex plugin from OpenAI's plugin marketplace: search and install UI components from MagicPath canvases, apply team themes, and move interfaces from local code onto the canvas to keep iterating. Needs a MagicPath account and Node.js.

Figma's Codex plugin in OpenAI's official marketplace: implements UI from designs, generates Code Connect mappings, and creates or updates pages, component libraries, FigJam diagrams and slides in Figma. Needs a connected Figma account.

Adobe's official Codex plugin, listed in OpenAI's plugin marketplace: batch-edit and retouch photos by chat, build social graphics from Express templates, reformat landscape video into vertical shorts and search Creative Cloud assets. Try it as a guest; sign in for more features.

OpenAI's official Codex plugin for Outlook mail: triages your inbox, summarizes threads, extracts action items, and drafts replies or forwards, for people who handle heavy email loads. Requires Codex with a ChatGPT sign-in and an authorized Microsoft account.

OpenAI's official Codex plugin that uses the Gmail connector to search mail, read threads, draft replies and tidy your inbox. The plugin bundles no extra skills; authorize your Google account in Codex.

Design engineering plugin for product interfaces such as admin panels and dashboards: builds UI on design principles and saves spacing, color and hierarchy decisions to .interface-design/system.md to stay consistent across sessions. Not meant for marketing pages.

Claude Code plugin marketplace for designers: 33 plugins and 273 skills for user research, design systems, UX strategy, interaction, prototype testing, visual critique and accessibility. Install designer-toolkit and run /designer-toolkit:start-here for a suggested flow; no coding needed.