Skills
99,719 packaged capabilities and playbooks for agents. Install any of them with one command.
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Craft and optimize SQL for any warehouse dialect — Snowflake, BigQuery, Databricks, Redshift, PostgreSQL. Covers window functions, CTEs, aggregations, joins, funnel queries, cohort retention, deduplication, dialect translation, slow query tuning, and cross-platform syntax differences.
Apply causal inference methods — counterfactual framework, instrumental variables, propensity score matching, and difference-in-differences — to estimate causal effects from observational data. Use this skill when the user needs to determine if X caused Y from non-experimental data, evaluate program/policy impact without a randomized trial, or control for confounders — even if they say 'did this change cause the improvement', 'how do we measure the impact without an experiment', or 'is this correlation or causation'.
Capture or repair reliable full-page screenshots for lazy-loaded, scroll-animated, Framer, WebGL/canvas, or reveal-heavy web pages. Use when full-page screenshots are blank, gray, white, sparse, show a tiny content strip, disagree with a working scroll video, or when article evidence/section crops must be derived from a trustworthy full-page image.
Billing and payment operations for Stripe: customers, products, prices, invoices, payment links, subscriptions, refunds, disputes, balance. Triggers: create customer, create product, create invoice, generate payment link, query transactions, process refunds, manage subscriptions, view disputes, check balance. Money operations require confirmation. MCP is optional — works with Dashboard/CLI too.
Comprehensive structural systems knowledge for architects covering structural typology selection, grid design and spacing, lateral stability systems, foundation types, span-to-depth ratio tables, load path narratives, and architect-engineer coordination strategies. Provides decision frameworks for selecting structural systems based on span, height, program, cost, construction speed, and sustainability targets.
Analyze an article's writing-style features and extract style dimensions into a style material library. Can blend multiple style materials to generate or update the main style profile (my_style.json). Use when the user says "分析风格", "提取写作风格", "学习这个语气", "分析我的文风", "吸收这个风格", or "更新我的风格". Even if the user merely shares an article and expresses interest in its style, consider using it.
Comprehensive Swift development for building, testing, and deploying iOS/macOS applications. Use when Claude needs to: (1) Build Swift packages or Xcode projects from command line, (2) Run tests with XCTest or Swift Testing framework, (3) Manage iOS simulators with simctl, (4) Handle code signing, provisioning profiles, and app distribution, (5) Format or lint Swift code with SwiftFormat/SwiftLint, (6) Work with Swift Package Manager (SPM), (7) Implement Swift 6 concurrency patterns (async/await, actors, Sendable), (8) Create SwiftUI views with MVVM architecture, (9) Set up Core Data or SwiftData persistence, or any other Swift/iOS/macOS development tasks.
Set up the pstack plugin in a project through an interview, and keep every pstack project on one pinned tag and one shared AGENTS.md overrides block. Use to set up or install pstack in a repo, sync, bump or update pstack everywhere, list which projects use pstack or have drifted, compare setups, audit a project's skills for drift from pstack (which to cut, fold or keep), change which work runs a panel, architect or an arena without asking ("from now on X runs architect"), or move a workflow lesson, including a plan page shape change, into every project. Not for choosing pstack's per-role models, which setup-pstack owns.
Contributing to the Twenty codebase itself (twentyhq/twenty server internals), not for building apps on top of Twenty. Implement action handlers for executing workspace migrations in Twenty. Use when creating database operations for syncable entities, implementing universal-to-flat entity transpilation, or handling create/update/delete actions in the runner layer.
Create and configure ASP.NET Core Stepper controls to support multi-step workflows and progressive user interfaces. This skill should be applied when implementing step navigation, wizards, progress trackers, form flows, checkout processes, or any sequential step-based UI. It is also relevant whenever requirements involve steppers, step validation, step navigation, linear flows, or step-based state management.
Implements Syncfusion Flutter Circular Charts (SfCircularChart) for pie, doughnut, and radial bar data visualizations in Flutter. Use when working with PieSeries, DoughnutSeries, or RadialBarSeries using the syncfusion_flutter_charts package. This skill covers chart setup, data labels, legends, tooltips, selection, annotations, gradients, animation, accessibility, and chart export.
Implements the Syncfusion Javascript (ES6) is case-sensitive PDF Viewer (PdfViewer) for embedding, configuring, and loading PDF documents. Use this when rendering PDFs in a TypeScript application using the EJ2 class-based approach, embedding viewer controls, or generating TypeScript and HTML code for PDF display and interaction.
Build admin dashboards and app UIs with Tabler, the open source UI kit built on Bootstrap 5. Use when a project uses Tabler or @tabler/core, or when asked for a dashboard, admin panel, settings page, data table or form styled with Tabler. Covers installation, the page layout, where to read the real component markup and the rules that keep the output consistent.
Detects anemic domain models, validates and refactors them into rich domain models, and enforces tactical DDD patterns (Entities, Value Objects, Aggregates, Domain Services, Domain Events). Use when the user asks to validate, review, or check domain models or DDD code; detect anemia; refactor domain objects; improve encapsulation; or mentions terms like "anemic model", "rich domain", "aggregate", "value object", "domain event", "ubiquitous language", "is this good DDD", "does this follow DDD", or "check my domain". Do NOT use for module or service boundary design, architectural decomposition, strategic DDD context mapping, or code outside the domain layer (DTOs, controllers, infrastructure adapters).
Use the tailwind-animations npm package (CSS-only Tailwind CSS v4 plugin) to add ready-made animation utilities: fade, slide, zoom, flip, bounce, jelly, dialog entry/exit, scroll/view timelines, scroll-mask edge fades, duration/delay/steps/ iteration/fill-mode, and animate-slide-distance. Use when the user wants CSS animations with Tailwind, animate-* classes, motion utilities, dialog animations, scroll-driven CSS motion, scroll-mask fading edges, or to install/configure tailwind-animations. Triggers: "tailwind animations", "animate-fade-in", "animate-dialog", "scroll-mask", "slide-distance", "tailwind motion plugin", /tailwind-animations.
Use when consolidating, deduping, or reducing the number of CSS custom properties / Tailwind v4 design tokens in a globals.css file. Triggers on requests like "reduce tokens", "standardize design tokens", "too many tokens", "dedupe globals.css", "shrink @theme inline", "collapse similar colors", or any task whose goal is fewer tokens while keeping the same visual result. Covers @theme inline, --color-* aliases, :root/.dark/.dashboard-page blocks, dead-token analysis, value-similar collapse, single-use inlining, and the Tailwind v4 arbitrary-value escape syntax.
Plan presenter-led and UGC-style videos: choose the presenter archetype, define styling, setting, lighting, and framing, write the hook/body/CTA script skeleton, and produce keyframe prompts for the repo's FAL.ai pipeline. Use whenever the user wants a talking-head video, presenter video, UGC ad, testimonial, founder video, explainer with a person on camera, spokesperson content, or 'someone talking about my product' — even if they just say 'I need a video of a person explaining this'. Produces a Talking Head Video Spec: presenter definition, look/setting/lighting/framing decisions, timed script skeleton, and generation-ready keyframe prompts for fal-ai/nano-banana-pro.
Find opportunities to improve web application code using TanStack libraries (Query, Table, Form, Router, etc.). Avoid man-with-hammer syndrome by applying TanStack after vanilla implementation works.
Guide for managing tasks within a session using bd (beads) for subtasks and local todo lists. Use this skill when breaking down plans into issues, tracking progress, managing dependencies, or coordinating work across sessions and agents. Triggers include requests to "manage tasks", "track progress", "break down this work", or questions about bd workflow.
TC 天策创业解题 Skill is an AI business-problem-solving coach for ordinary founders, compatible with dontbesilent's DBS business toolbox. Use it when the user types "/tc", "TC", "tc" or "$tc", or needs to deal with starting a business, side hustles, self-media, personal IP, AI applications, project validation, customer acquisition and closing, delivery retrospectives, partnership trade-offs, or entrepreneurial anxiety. It turns a messy narrative into one real problem, finds the earliest link in the money-making chain that lacks evidence, and then gives one action that can immediately face real market testing. It also applies to zero-based users with no direction, resources or record of asking for help, but it only generates project hypotheses to be validated: it does not recommend high-profit projects, does not guarantee returns, and does not output vague advice.
TC startup action push. Use it when the user types "/tc-action", or already has a judgment or project hypothesis but lacks real-world evidence, has an oversized plan, keeps studying and holding meetings, needs to validate demand, or needs to push a quote toward closing. It compresses the judgment or hypothesis into a ten-minute start, a twenty-four-hour market delivery, a single seven-day metric, a cost ceiling, stop conditions and the data to bring back; it checks the current public market when tools are available and states the unknowns explicitly when they are not, and the action must involve contact with real people.
TC business copy. Use it when the user types "/tc-copy", or needs business expressions that can be published or sent directly, such as for starting a business, self-media, customer acquisition, quotes, one-on-one follow-ups, project recruitment, or case retrospectives. It first judges whether the copy is a solution to the current business bottleneck, then writes, based on real facts, a version that drives only one next step; fabricating cases, income, scarcity, authoritative endorsements or return promises is prohibited.
TC startup problem reframing and definition. Use it when the user types "/tc-diagnosis", or needs to find the single business bottleneck in situations such as a messy narrative, entrepreneurial anxiety, multiple directions, partnership disputes, traffic that does not convert to revenue, or a product that will not sell. It first separates facts, interpretations, emotions and hypotheses, then forms a real problem with a subject, a goal, constraints and validation criteria; once the end conditions are met it must stop asking questions and return to /tc or tc-action, and it does not treat the diagnosis itself as a result.
Official update entry point for TC Skill. Use it when the user types "/tc-update", or explicitly asks to update, upgrade, reinstall, check and sync the latest version of TC Skill. It only updates TC-series skills from Leobai03/tc, does not modify other skills, and does not read or upload user chats or business materials.
Use telnet to interact with IoT device shells for pentesting operations including device enumeration, vulnerability discovery, credential testing, and post-exploitation. Use when the user needs to interact with network-accessible shells, IoT devices, or telnet services.
Use only when the user explicitly asks for a TestDino audit of Playwright automated test code. Routes through the audit tools the TestDino MCP server exposes (get_audit_report + submit_audit_report, or the legacy test_audit). For generic code review or non-Playwright targets, do a normal review instead.
Use when the user wants to check TestDino connection status, validate their PAT, discover available organizations and projects, or find the right projectId. Always call this first when the project context is ambiguous before any other TestDino tool.
Use when the user wants to manage a manual execution run or update case-level results inside a run — listing runs, creating runs for a release, inspecting a run, assigning cases, or marking case results (passed/failed/blocked/skipped/retest/untested). Accepts counter-style IDs like RUN-12 and TC-156.
Use when the user wants to inspect automated test runs, list failed or flaky tests, debug a failing testcase with historical context, or filter runs by branch, commit, author, environment, browser, status, or tags. Includes list_testruns, get_run_details, list_testcase, get_testcase_details, and debug_testcase.
Load PROACTIVELY when task involves writing tests, improving coverage, or test infrastructure. Use when user says "add tests", "write unit tests", "set up E2E testing", "improve coverage", or "add mocks". Covers Vitest/Jest unit tests, React Testing Library component tests, Playwright E2E tests, MSW API mocking, test organization and naming, fixture management, coverage targets and thresholds, snapshot testing, and CI integration.
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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.