Use this skill any time a spreadsheet file is the primary input or output. This means any task where the user wants to: open, read, edit, or fix an existing .xlsx, .xlsm, .xltx, .csv, or .tsv file (e.g., adding columns, computing formulas, formatting, charting, cleaning messy data); create a new spr

React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing, reviewing, or refactoring React/Next.js code to ensure optimal performance patterns. Triggers on tasks involving React components, Next.js pages, data fetching, bundle optimization,

Verified generative visualization for React and agents, with deterministic chart validation, repair, rendering evidence, and MCP.

Create validated architecture, workflow, sequence, data-flow, lifecycle/state, ERD, class, tree, timeline, and waterfall diagrams as explorable standalone HTML with dark/light themes, motion and image/SVG/WebM export. Accept requirements or Mermaid; inspect repository evidence for code-backed diagra

Tests in real browsers via Chrome DevTools MCP. Use when building or debugging anything that runs in a browser. Use when you need to inspect the DOM, capture console errors, analyze network requests, profile performance, or verify visual output with real runtime data. Requires the chrome-devtools MC

How to write modern Swift well — modeling with value types, Swift 6 data-race safety and approachable concurrency (@concurrent, main-actor-by-default, actors, task groups), protocols and generics (some vs any), API design, performance and ARC, Swift Testing, macros, and the modern language features

Create strategic HTML presentations with Chart.js, design tokens, responsive layouts, copywriting formulas, and contextual slide strategies.

Read data from a Google Sheet and create a formatted Google Docs report.

A high-performance CLI tool and visualization dashboard for tracking AI coding assistant token usage and costs across multiple platforms.

Connect your AI assistants to Keboola and expose your data, transformations, SQL queries, ...

Use this skill whenever a task needs the web: searching for information, checking current facts or news, finding sources, reading a URL, finding a page on a site, or collecting many pages from a site. Use it for anything past your training data or anything the user wants verified online.

Use this skill when designing or reviewing a PostgreSQL-specific schema. Covers best-practices, data types, indexing, constraints, performance patterns, and advanced features

Open-source all-in-one MCP-first customer platform: KB, Conversations, CRM, CMS, Outreach, Analytics

Enables MCP-capable AI apps to query a user's own Garmin sleep, HRV, stress, Body Battery, heart-rate, activity, and body-metric data through Garmin's official Personal API in a read-only, locally run setup.

Provides AI agents with live access to Chile's financial regulator data: sanction resolutions, regulations (NCGs, circulares), and registers of supervised entities and Fintec financial service providers. Supports sanctions lookups, norm resolution by type and number, and entity lookup by RUT or name, with natural persons' data withheld.

Let AI agents draft, schedule and publish posts to 17 social platforms, read analytics and reply.

Enrich and research the people and companies the user names or supplies with Firecrawl Alexandria data: background on a person, a professional profile URL to look up, whether someone still holds a role, missing columns in a table or CSV of people or companies, firmographics for company domains (indu

SAP AI & analytics market data for agents: SAP firms, day rates, jobs, Joule & BDC news

Use when writing, reviewing, or refactoring SwiftUI code for iOS or macOS, including state and `@Observable` data flow, view composition, resizable layouts, safe areas, display scale, performance, lists, environment, localization, animation, Liquid Glass, and API migration. Also use for iPhone Duo,

Quant research skills for coding agents on 0xArchive data. Reverse engineer any trader, test any idea: a deterministic Rust backtester, a trial ledger, a sealed holdout and a verdict you can rerun. Plus live market data for Hyperliquid and Lighter.

The data and trading platform for AI: decades of US market data, backtests in seconds.

Romanian company data for agents: 4.2M ONRC firms, ANAF status, financials 2008–2025. Free key.

DeepSeek Harness 的执行迷宫——看 Agent 真实怎么干活：迷宫时间轴 · 数据轨道 · 确定性执行分析 · 多会话对比 | The execution maze for DSH agents: maze timeline, per-step data tracks, deterministic execution analysis, multi-session comparison. Formerly dsh-trace-compare.

Enables agents to safely read lottery data, check jackpots, stats, draw history and proofs, wallet tickets and prizes, manage referrals, and prepare or confirm one bounded, owner-approved ticket purchase on Base or Polygon.