Tools

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+.

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.

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.

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.

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.

Lets agents drive the open-source CAD app FreeCAD: create and edit part models in natural language, run Python scripts, capture views and run FEM structural analysis for mechanical and product design. Needs FreeCAD with the addon and its RPC server, plus uv; engineers should verify results.

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.

Lets agents write and run Playwright scripts on the fly for browser testing and automation, auto-detecting local dev servers, with screenshots, responsive checks, login flows and link checking. After installing, run npm run setup in the skill directory.

Search and download arXiv papers and read the authors' LaTeX source section by section, export BibTeX and follow topic updates, with papers cached locally. No API key needed.

Microsoft's official skill collection: 170+ skills focused on Azure SDKs (Python, .NET, TypeScript, Java, Rust) and Microsoft Foundry development, plus plugins, custom agents and MCP configs. Microsoft recommends picking skills per project rather than installing them all.

Agent skills maintained by the Flutter team: layered architecture, responsive layouts, fixing layout overflows, declarative routing, internationalization, JSON serialization, and widget and integration tests. Works alongside the Dart MCP server.

Official plugin from the Dart and Flutter teams that installs Flutter skills and the Dart MCP server together, covering layered architecture, responsive layouts, layout error fixes, widget and integration tests, routing and internationalization. Requires the Dart/Flutter SDK locally.

Reviews mobile and desktop app designs against Apple's Human Interface Guidelines, bundled as 123 pages from developer.apple.com, citing the exact guideline through five review lenses, and flags generic, templated choices. Works on screenshots, mockups or code for SwiftUI, Flutter or Electron.

Finance skills for US, Hong Kong and China A-share markets: news from 10+ sources, quotes and fundamentals, sentiment analysis, time-series forecasts, signal tracking, impact-chain diagrams and reports. Needs Python; some skills download PyTorch models. Not investment advice.

Measurement-first audits and optimization of web quality using Lighthouse, Chrome DevTools performance traces and CrUX data, covering Core Web Vitals, WCAG 2.2 accessibility, SEO and best practices, for any frontend framework. By Addy Osmani (not an official Google project).

Unified search across 20+ academic sources including arXiv, PubMed, bioRxiv, Semantic Scholar and OpenAlex, returning deduplicated, normalized results and downloading full text via open-access channels first. Most sources need no API key.

Replaces arXiv preprint entries in your .bib file with the official published versions from DBLP and ACL Anthology, keeping citation keys, to tidy references before camera-ready. Overwrites the file by default, so preview with --dry-run. Mainly covers CS venues; needs Python 3.10+.

Postgres rules ranked by impact: query optimization, indexing, connection pooling, RLS security, schema design and lock troubleshooting, with wrong-vs-right SQL examples, applicable to any Postgres. Maintained by Supabase.

Connects to your Supabase projects: manage schemas and migrations, run SQL, deploy Edge Functions, create development branches and generate TypeScript types. A remote server hosted by Supabase with OAuth sign-in.

Open-source, agent-friendly BI: define metrics and dashboards in YAML and SQL, and rill init generates project instructions and MCP config for Claude Code so agents can build business dashboards and answer questions in natural language. Local use is free; publishing to Rill Cloud needs an account.

Python library with a built-in MCP server for US SEC EDGAR data: search 10-K, 10-Q, 8-K and other filings and read XBRL-standardized financial statements, Form 4 insider trades and 13F holdings. Free with no API key; just set an EDGAR_IDENTITY.