Best Claude Code Plugins for Product Managers (2026)

231 PM skills, 150+ frameworks, and 11 guided workflows for PM work

AI PM OS is a skill collection built for product managers working in Claude Code. It ships 231 PM skills covering discovery, prioritisation, stakeholder communication, roadmapping, and delivery, plus 150+ frameworks and 11 guided workflows. It's the only Claude Code plugin designed from the ground up for PM work rather than engineering work. (Full disclosure: this is prodmgmt.world's own product.)

# Included with AI PM OS ($99 one-time):
# Access via: https://www.prodmgmt.world/

# After purchase, install skills:
npx skills add prodmgmt-world/pm-os

Verdict: If you are using Claude Code for real PM work, not only prototyping, install this first. Nothing else in the ecosystem is purpose-built for product management at this depth.

Product-specific AI evals from the AI Evals course

Evals Skills come from Hamel Husain and Shreya Shankar, who teach the AI Evals course and have helped 50+ companies with evals. An evals-start skill looks at your situation and routes you. eval-audit inspects an existing eval pipeline and ranks its problems by severity. error-discovery builds a review app for your traces, picks a diverse sample, and sorts your notes into failure modes. Other skills generate synthetic test data, write code checks and LLM judges, and calibrate those judges against human labels.

npx skills add https://github.com/ai-evals-course/evals-skills

# Then point the agent at your data:
# "Can you help me do error analysis on traces.jsonl?"

Verdict: The best PM-facing skill pack for AI features. Install it the week your team ships anything built on an LLM.

Drive NotebookLM from Claude: sources, questions, and audio overviews

NotebookLM MCP CLI (by Jacob BD) connects Claude and other agents to Google's NotebookLM, which Google now calls Gemini Notebook. It ships an nlm command line tool and an MCP server with 53 tools. Your agent can create notebooks, add URLs, Drive files, and documents as sources, ask questions across them, and generate audio overviews, videos, and slide decks. A setup wizard finds the AI tools on your machine and connects them.

uv tool install notebooklm-mcp-cli
nlm login

# Connect Claude Code and your other AI tools:
nlm setup

Verdict: The fastest way to turn a pile of research into cited answers. Use it for personal research, not for anything that has to be reliable.

Five real UI variations side by side, then refine until you are sure

Design and Refine (by @0xdesign) generates five distinct variations of any component or page in your actual codebase. It reads your Tailwind config, CSS variables, or component library first, so variations match your design system. You compare them side by side in a design lab route on your dev server, leave Figma-style comments on any element, and it synthesizes a refined version. When you are done it deletes the temp files and writes a DESIGN_PLAN.md.

# Claude Code:
/plugin marketplace add 0xdesign/design-plugin
/plugin install design-and-refine@design-plugins
/design-and-refine:start

# Cursor or Codex:
npx skills add https://github.com/0xdesign/design-plugin --skill design-lab

# Then in Cursor:
/design-lab

Verdict: The best way to explore a UI direction before committing. Use it when you are stuck between options or need stakeholders to react to something concrete.

Anti-slop rules that stop AI UI from looking generic

Taste Skill is a set of portable agent skills that push AI-built interfaces toward stronger layout, typography, motion, and spacing. The default skill reads your brief, infers a design language, and tunes three dials: variance, motion, and density. Variants cover redesigning an existing project, calm premium UI, minimalist editorial UI, and brutalist layouts, plus image-generation skills for reference boards.

# Default skill:
npx skills add https://github.com/Leonxlnx/taste-skill --skill design-taste-frontend

# Or install every skill in the pack:
npx skills add https://github.com/Leonxlnx/taste-skill

Verdict: Install it before your next prototype. It is the fastest fix for AI UI that looks like AI UI.

A design skill that refuses to look AI-generated

Hallmark (from Together AI) picks a page structure for your brief, dresses it in one of twenty-one themes, and runs 57 slop-test gates plus a self-critique before it hands anything back. It has four verbs: build new UI, audit existing code against its anti-patterns, redesign a page while keeping the copy and information architecture, and study a screenshot or URL you admire to extract its structure, type pairing, and colour anchor.

npx skills add nutlope/hallmark

# Then in Claude:
hallmark audit <file or folder>
hallmark study <screenshot or URL>

Verdict: The best pick when the page itself is the product: a launch page, a pitch prototype, or anything stakeholders judge in five seconds.

A searchable design system brain for your agent

UI UX Pro Max gives your agent a searchable library of design knowledge: 50 active UI styles, 192 colour palettes matched to product types, 74 font pairings, 25 chart types, and 119 UX guidelines covering accessibility and common production failures. Its design system generator reads your project and recommends a page pattern, style, palette, and type pairing with the reasoning behind each choice. It covers 22 stacks, from React and Tailwind to SwiftUI and Flutter.

/plugin marketplace add nextlevelbuilder/ui-ux-pro-max-skill
/plugin install ui-ux-pro-max@ui-ux-pro-max-skill

Verdict: Use it at the start of a new prototype to pick a design direction that fits the product, then let Taste Skill or Hallmark handle the polish.

Product design decisions beneath the screen

Layers (by Jamie Mill) is a product design framework packaged as skills. It splits design into seven layers, from observed behaviour and domain language up through user needs, product strategy, conceptual model, interaction flow, and finally surface. Each /layers-* skill works one layer, and an orient skill tells you which layer your problem actually lives in.

npx skills add jamiemill/layers-skills

# Then run any /layers-* skill, starting with:
/layers-orient

Verdict: The most PM-friendly design plugin here. Use it before Taste Skill or Design and Refine, not instead of them.

150+ design and build skills from the founder of Design+Code

Meng To's skills library holds 150+ portable SKILL.md playbooks for designers and builders. The flagship workflow turns a screen recording of a design into a detailed recreation prompt, turns existing HTML into reusable interaction prompts, and captures full-page references. The web design set covers landing pages, pricing pages, scroll motion, WebGL effects, layout systems, and dozens of visual styles.

# Clone, then copy the skills you want into ~/.claude/skills/
git clone https://github.com/MengTo/Skills ~/.local/share/mengto-skills
cp -r ~/.local/share/mengto-skills/agent-skills/codex/video-to-superprompt ~/.claude/skills/

Verdict: Cherry-pick, do not install everything. Grab the reference-capture workflow and the landing-page skills and ignore the rest until you need them.

Ten structured design-review skills for extra polish

Refactoring UI Skills packages the principles from Adam Wathan and Steve Schoger's book Refactoring UI as ten focused skills: visual hierarchy, typography scale, color palette, spacing, button hierarchy, visual clutter, empty states, shadows, contrast, and grouping. A refactor-ui meta-skill runs a full design pass. Works in Claude Code, Codex, and Cursor. (Full disclosure: I built this one. It is not affiliated with Tailwind Labs, and the book is worth buying.)

/plugin marketplace add gnurio/refactoring-ui-plugin
/plugin install refactoring-ui-skills@refactoring-ui-plugin

# Then in Claude:
/refactor-ui

Verdict: The finishing pass. Use Taste Skill or Design and Refine to get a direction, then run this before you show anyone.

Animation and interface craft from a design engineer at Vercel and Linear

Emil Kowalski built animation and interface work at Vercel and Linear, and made the Sonner toast library. His skills list the small mistakes agents make and how to fix them, like an ease-in curve on an enter animation or a solid border where a soft shadow belongs. The main emil-design-eng skill covers animation and design, and focused skills build animations, review or improve existing ones, find places that deserve motion, make a web app feel native on a phone, and pick a trusted UI library instead of hand-rolling one.

npx skills@latest add emilkowalski/skills

Verdict: The polish layer for motion. Add it once your prototype looks right and you want it to feel right too.

Small, composable skills for real engineering, not vibe coding

Matt Pocock (Total TypeScript, AI Hero) open-sourced the skills he uses daily. They are deliberately small and composable instead of owning your whole process. The most popular are /grill-me, which makes the agent interview you in detail before any work starts, and /grill-with-docs, which does the same while building a shared vocabulary for your domain. A setup skill connects them to your issue tracker (GitHub, Linear, or local files).

/plugin install mattpocock-skills

# Then, once per repo:
/setup-matt-pocock-skills

# Other agents:
npx skills@latest add mattpocock/skills

Verdict: Install it and make /grill-me a habit before every non-trivial request. It fixes misalignment at the cheapest possible moment.

A senior engineer’s workflow from spec to ship

Addy Osmani, an engineering leader at Google, packaged the workflows and quality gates senior engineers use into 25 skills. Nine slash commands map to the development lifecycle: /spec, /plan, /build, /test, /constraints, /review, /webperf, /code-simplify, and /ship. Skills also trigger on their own, so building UI pulls in frontend guidance and designing an API pulls in interface design. An interview-me skill questions you about requirements one question at a time.

/plugin marketplace add addyosmani/agent-skills
/plugin install agent-skills@addy-agent-skills

# Other agents:
npx skills add addyosmani/agent-skills

Verdict: The most complete engineering workflow on this list. Install it when your prototypes start turning into real features someone will maintain.

Makes your agent think like the laziest senior dev in the room

Ponytail puts a minimalist senior engineer inside your agent. Before writing code it checks whether the browser, the platform, or an installed dependency already solves the problem. Ask for a date picker and you get a native date input instead of a new library and a wrapper component. The author's benchmark on real Claude Code sessions measured about 54% less code and 20% lower cost on average, with safety checks kept. It also ships review, audit, and tech-debt skills.

# Send these as two separate prompts:
/plugin marketplace add DietrichGebert/ponytail
/plugin install ponytail@ponytail

Verdict: An easy always-on install. It quietly removes the most common source of bloated AI-built prototypes.