Tools

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.

HR and compliance plugin with HR and legal advisor subagents plus employment contract and GDPR skills, for drafting hiring materials, onboarding, offboarding and performance policies, employment contracts, privacy policies, terms of service and DPAs. Mainly US and EU rules.

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 plugin that opens PDFs in a local interactive viewer where Claude proposes highlights, comments and approval stamps in batches, walks you through form filling, places signature images and exports an annotated copy. Needs Node.js 18+; signatures are not digital certificates.

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.

Plugin for in-house legal: reviews contracts clause by clause against your negotiation playbook with suggested redlines, triages NDAs green/yellow/red, handles compliance and privacy questions, assesses legal risk and writes briefs. Official from Anthropic; default playbook assumes US law.

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.

Commercial contracts plugin: reviews vendor agreements, NDAs and SaaS subscriptions against a sell-side or buy-side negotiation playbook, tracks renewal and cancellation deadlines, and drafts escalation approval requests. First use starts with an interview to build the playbook. By Anthropic.

Anthropic's official legal plugin marketplace: 13 plugins covering commercial contracts, privacy, product counsel, M&A, employment, regulatory, AI governance, litigation and IP, plus plugins for law school clinics and law students. All output is a draft for attorney review.

Anthropic's official employment law plugin: reviews hiring and termination risk by jurisdiction, classifies workers, tracks leave deadlines, manages internal investigations, and drafts policies with state supplements. Focused on US state law; output needs attorney review.

Anthropic's official study plugin for law students: Socratic questioning, case briefs, outline building, IRAC essay feedback, flashcards and jurisdiction-specific bar prep plans. Deliberately guides thinking instead of writing for the student.

Anthropic's official AI governance plugin: tiers AI use cases against your internal register, runs impact assessments across applicable laws such as the EU AI Act, reviews vendor AI terms for training-data and liability risk, and periodically checks for drift between AI policy and practice.

Anthropic's official corporate legal plugin: tabular due diligence over data room files with cell-level citations and issue extraction, material contract disclosure schedules and closing checklists, board written consents, and entity compliance deadlines. Outputs are drafts for attorney review.

Anthropic's official litigation plugin: manages the case portfolio, deadlines, legal holds and outside counsel progress, and builds claim charts, fact chronologies, witness outlines, first-pass privilege logs and brief section drafts. Outputs are drafts for attorney review.

Anthropic's official product counsel plugin: learns your risk calibration from past launch reviews, then reviews launches, checks marketing copy for claims needing substantiation and quickly answers is-this-OK questions. Connects to Jira, Linear and Slack; outputs are drafts for attorney review.

Anthropic's official regulatory compliance plugin: monitors sources like the Federal Register, compares new rules with your policy library to find gaps, tracks comment deadlines and open gaps, and drafts policy revisions and weekly regulatory digests. Outputs are drafts for attorney review.

Privacy compliance plugin: decides whether processing activities need a PIA or DPIA, generates privacy impact assessments, reviews DPAs from the controller or processor side, and drafts DSAR responses within statutory deadlines. Official from Anthropic.

Anthropic's official IP plugin: trademark clearance screening, freedom-to-operate and infringement triage, invention disclosure intake, drafting or responding to cease-and-desist letters and DMCA takedowns, open-source license compliance checks and renewal deadline tracking.