Tools

Query Google Analytics 4 in natural language: read account and property info and run standard, funnel and realtime reports. Official from Google Analytics (experimental); requires Google Cloud Application Default Credentials.

Browserbase's official skills: drive a local or cloud browser with the browse CLI for web scraping and search, turning site traffic into an OpenAPI spec, adversarial UI testing and competitor research. Cloud features need a Browserbase account.

Community plugin marketplace bundling hundreds of subagents, slash commands, hooks and skills by category, installable individually or all at once, with the buildwithclaude.com site for browsing community plugins and MCP servers.

Visualization skills for Obsidian that turn text into Excalidraw hand-drawn diagrams, Mermaid charts and Obsidian Canvas mind maps. Marked experimental by the author; the Excalidraw skill needs the matching Obsidian plugin.

Converts PDFs to editable Word files, keeping paragraphs, tables, images and layout as closely as possible, and can extract tables alone, handy when a contract or exam only exists as PDF. Needs Python; digital PDFs only, OCR scans first. No longer actively maintained by Artifex.

Plugin marketplace for investment research: six plugin groups covering yfinance market data, earnings previews and recaps, DCF valuation, option payoff charts, ETF premiums, read-only news from X, Discord and other social sources, and TradingView data. Research only, not investment advice.

Learns your domain and working style over a few rounds of conversation, then generates a personalized Markdown knowledge system (folders, note templates, processing pipelines, hooks and maps) so agents remember knowledge across sessions. First setup takes about 20 minutes and is token-heavy.

Works with Gmail, Calendar, Drive, Docs, Sheets, Slides, Tasks, Chat and other Google Workspace services, with multi-user OAuth and read-only mode. You create your own Google OAuth client and run it in HTTP mode.

Searches Google Flights for flights and the cheapest travel dates, filtering by route, date, cabin, stops, airline and alliance, good for trip planning. Open-source Python, no API key needed; built on reverse-engineered Google endpoints, so changes at Google may break it.

AWS's generally available agent toolkit and plugin marketplace: plugins such as aws-core, aws-agents and aws-data-analytics bundle the AWS MCP Server with evaluated skills for IaC, serverless, containers and billing. Calling AWS APIs requires configured credentials.

PostgreSQL MCP server with database health checks, index tuning, EXPLAIN plan analysis and hypothetical index simulation, plus safe read-only SQL execution in restricted mode.

About 40 research skills from Google DeepMind: search arXiv, PubMed and OpenAlex, query UniProt, PDB, ClinVar, ChEMBL and more, run AlphaGenome variant analysis and render structures in PyMOL. Requires uv; AlphaGenome needs an API key, and keys raise limits for OpenAlex, ClinVar and others.

Teaches agents to build, debug and review stateful AI agents with the Cloudflare Agents SDK: state sync, scheduled tasks, RPC, MCP servers, email and streaming chat, checking the latest official docs first. Maintained by Cloudflare.

Framework for writing data transformation models in SQL or Python, with a Terraform-like plan/apply flow, virtual data environments, unit tests and table diffs, and transpilation across 10+ SQL dialects. A Linux Foundation project and an alternative to dbt.

Guides the agent in writing library-grade Vue composables whose inputs accept a plain value, ref or getter: choose MaybeRefOrGetter or MaybeRef depending on whether the input is read-only or writable, and normalize with toValue() and toRef() inside watchers. Requires Vue 3 or Nuxt 3+.

Pinia best practices and gotchas for Vue apps: fixing the getActivePinia error, returning all state from setup stores, keeping reactivity when destructuring stores, calling store methods from templates, keeping ephemeral filters in the URL, and using Pinia in large apps.

Testing practices for Vue apps: Vitest and Vue Test Utils, black-box component tests, flushPromises for async code, helpers for testing composables, Pinia stores, async components and Teleport, avoiding snapshot-only tests, and Playwright for end-to-end testing.

Debugging index for Vue 3: maps common symptoms in reactivity, computed, watchers, components, props and emits, templates, forms and v-model, lifecycle, slots, TypeScript and SSR hydration to reference notes that explain the cause and the fix.

For Vue 3 projects on the Options API (data(), methods, this): how to get TypeScript inference with defineComponent and type props, event handlers and computed values, plus gotchas like avoiding arrow functions in methods and lifecycle hooks and not sharing debounced state across instances.

Vue Router 4 best practices and gotchas: guards and lifecycle hooks not firing when only params change, no this in beforeRouteEnter, async calls and infinite redirect loops in guards, the deprecated next() callback, and cleaning up listeners after unmount.

Default workflow for Vue work: standardizes on Vue 3, the Composition API and script setup with TypeScript, reads core references on reactivity, SFCs, data flow and composables, plans component boundaries first, loads topics like slots, transitions and performance only when needed, then self-checks.

Covers how JSX in Vue differs from React JSX, such as class instead of className and JSX plugin config, for migrating React JSX to Vue or fixing attribute type errors. A brief skill that points to a single reference note.

Lets agents read and write Figma: extract variables, components and styles, create and edit screens, FigJam boards and slides on the canvas, and run accessibility checks and design-system audits. Needs a Figma personal access token, the Figma desktop app, Node.js and the companion plugin.

Lets agents write and run Playwright scripts on the fly for browser automation: page tests, UX checks and multi-step flows, opening a visible browser by default and auto-detecting local dev servers. After installing the plugin, run npm run setup in the skill directory.