Skills
97,725 packaged capabilities and playbooks for agents. Install any of them with one command.
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The design-judgment layer of the thumb-first mobile suite — decides WHAT the right mobile pattern is and WHY, platform-agnostic across web and native. Reasons through named designer lenses (Hoober, Hurff, Wroblewski, Clark, Rausch, Budiu, Allen, de With, Nelson) with context-aware weighting, and surfaces decision forks where there's no single right answer. Two modes: plan a feature's mobile design before code, or audit an existing one. Use for navigation-pattern choices (tab bar, drawer, bottom sheet), thumb-reach and action placement, mobile forms, gestures vs visible controls, and mobile design critique — or when the user mentions mobile design, mobile UX, thumb zones, one-handed use, bottom sheets, or mobile navigation. Usually run via the /thumb-first umbrella (which also runs platform checks); invoke directly for design judgment only. For web/PWA technical defects use thumb-first-platform.
Manage TickTick tasks and projects. Use when the user asks to add, create, or capture a task or todo; list, show, or review pending tasks; complete or check off a task; update a task's priority, due date, notes, or tags; delete a task or list; create or manage a project/list; or see what's due today or overdue. Also handles quick captures like "remind me to..." or "don't let me forget...".
Operate TickTick through the `ticktick` command-line interface, including authentication, read/query flows, and safe mutations for tasks, projects, folders, columns, tags, habits, user info, focus analytics, and sync payloads. Use when users ask to run TickTick terminal commands, parse TickTick CLI JSON output, resolve IDs, or fix TickTick CLI configuration/auth failures.
Use when working with Tigris from Python — boto3 setup, Django uploads via django-storages, snapshots, bucket forking, in-place object rename, conditional writes (IfMatch/IfNoneMatch), and the Bundle API for batch ML data fetches. Covers the tigris-boto3-ext extension library (context managers, decorators, helpers) plus framework integration.
Find hardcoded colour, spacing and type values and wrong-tier token references in consuming code. Trigger: find hardcoded values, any hex in the code, are we using tokens correctly, token compliance. Do NOT use for token definitions — token-audit; token file format — schema-validator.
This skill should be used when the user asks to "identify web application vulnerabilities", "explain common security flaws", "understand vulnerability categories", "learn about injection attacks", "review access control weaknesses", "analyze API security issues", "assess security misconfigurations", "understand client-side vulnerabilities", "examine mobile and IoT security flaws", or "reference the OWASP-aligned vulnerability taxonomy". Use this skill to provide comprehensive vulnerability definitions, root causes, impacts, and mitigation strategies across all major web security categories.
Build and troubleshoot TorchDrug 0.2.1 workflows for molecular graphs, property prediction, self-supervised pretraining, molecule generation, retrosynthesis, protein representation learning, and knowledge graph reasoning. Use when code imports torchdrug or needs its datasets, models, tasks, or Engine.
Reviews React web apps for iPad and touchscreen usability with Tailwind CSS fixes. Audits touch targets, hover failures, touch-over list highlighting (Headless UI data-focus, Radix data-highlighted, inline rows), Safari/iPadOS quirks, layout fluidity, and FMC cursor conventions. Use when the user asks to review an app for touch, iPad, tablet, or touchscreen-optimized usage.
Use this skill for Vue component and composable authoring. Apply it when the task involves SFCs, reactivity, watchers, props or emits contracts, template patterns, SSR or hydration primitives, or Vue-core architecture in Vite projects and in Nuxt projects when the main issue is Vue authoring rather than Nuxt runtime behavior
Android device automation via uiautomator2. Use this skill whenever the user wants to click/tap elements, swipe screens, start or stop apps, press hardware keys, type text, take screenshots, inspect UI hierarchy, or perform any actions on an Android device.
Calculate, understand, and improve the unit economics of a solopreneur business. Use when figuring out if the business is actually profitable per customer, when CAC or LTV numbers are needed, when evaluating whether a pricing or acquisition strategy is sustainable, or when making data-driven decisions about marketing spend and pricing. Covers CAC, LTV, payback period, contribution margin, and the feedback loops between them. Trigger on "unit economics", "CAC", "customer acquisition cost", "LTV", "lifetime value", "payback period", "is my business profitable", "contribution margin", "am I making money per customer", "should I spend more on marketing".
Uniwind — Tailwind CSS v4 styling for React Native. Use when adding, building, or debugging components in a React Native project that uses Uniwind classNames. Covers setup, Metro config, global.css, theming, className props, accent-* color props, platform/data/state/responsive variants, CSS variables, custom utilities, withUniwind for third-party components, cn/tailwind-merge, tailwind-variants, safe area utilities, gradients, fonts, React Navigation, UI kits, diagnostics, troubleshooting, and Uniwind Pro features. Does not cover NativeWind migration.
Build emails, pages, and documents in code with @unlayer/react-elements — React components that render to email-safe (table) HTML, responsive web HTML, or print/PDF, and to design JSON the Unlayer visual editor opens. Use when writing or generating templates in code (app emails, invoices and other PDFs, templates kept in a repo, AI-generated templates), including when teammates should later edit them visually.
Audit UI implementations against Nielsen's 10 Usability Heuristics for User Interface Design. Produces a structured issue log with severity ratings, heuristic mappings, and remediation guidance. Use when conducting heuristic evaluations, reviewing UI code for usability compliance, or auditing existing interfaces.
Evaluate UI designs and implementations against established UX principles. Use this skill when the user wants a UX heuristic evaluation, usability review, UX critique, or analysis of a design against best practices. Triggers include: 'evaluate the UX', 'heuristic evaluation', 'UX review', 'usability critique', 'does this follow UX best practices', 'what UX issues do you see', 'critique this design', 'review this flow', or when the user provides a screenshot or HTML file and asks for UX feedback. Also trigger when users reference specific heuristics like 'visibility of system status', 'Fitts's Law', 'Hick's Law', 'cognitive load', or any of Nielsen's heuristics or Laws of UX by name.
Use when functions accept variable arguments. Use when typing rest parameters with specific constraints. Use when building generic function compositions. Use when preserving tuple length through transformations. Use when working with typed function pipelines.
Expert guidance for Google Veo 3.1 video generation. Use when the user wants to (1) create text-to-video or image-to-video prompts, (2) optimize for cinematic quality and native audio syncing, (3) maintain character consistency via reference images, (4) structure multi-shot sequences with timestamp prompting, (5) use First/Last Frame interpolation, (6) select between standard and fast generation modes, or (7) troubleshoot physics, motion, or audio issues in generated video.
Generate videos with Google Veo 3.1 via grsai.com API. Use for any video creation, text-to-video, or motion content requests. Triggers on "generate video", "create a clip", "make a video of", "video of", "animate". Supports fast/pro quality tiers; 720p/1080p/4K; 4/6/8-second durations; 16:9 and 9:16 aspect ratios.
New to MCP?
From what the protocol is to installing your first server, these answers cover most first questions.
An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.