Data & Analytics

by jeremylongshore

by jeremylongshore

by jeremylongshore

by jeremylongshore

by jeremylongshore

by jeremylongshore

by jeremylongshore

by jeremylongshore

by jeremylongshore

by jeremylongshore

by jeremylongshore

by jeremylongshore

by jeremylongshore

by jeremylongshore

by jeremylongshore

by jeremylongshore

by jeremylongshore

by jeremylongshore

by jeremylongshore

by K-Dense-AI

Look up current research information using the Parallel Chat API (primary) or Perplexity sonar-pro-search (academic paper searches). Automatically routes queries to the best backend. Use for finding papers, gathering research data, and verifying scientific information.

by Ed1s0nZ

SQL注入测试的专业技能和方法论

by xicilion

Create complex directed/undirected graphs with precise layout control. Best for dependency trees, org charts, network topologies, and module relationships. Use when you need fine-grained edge routing or hierarchical layouts with many levels. NOT for simple flowcharts (use mermaid) or data charts (use vega).

by xicilion

Create beautiful infographics with pre-designed templates. Best for KPI cards, timelines, roadmaps, step-by-step processes, A vs B comparisons, SWOT analysis, funnels, org trees, pie/bar charts. Use when you need quick visual impact with 4-8 items. Simple YAML-like syntax. NOT for complex data analysis (use vega) or technical flowcharts (use mermaid).

by sozercan

Expert guidance on Swift Concurrency best practices, patterns, and implementation. Use when developers mention: (1) Swift Concurrency, async/await, actors, or tasks, (2) "use Swift Concurrency" or "modern concurrency patterns", (3) migrating to Swift 6, (4) data races or thread safety issues, (5) refactoring closures to async/await, (6) @MainActor, Sendable, or actor isolation, (7) concurrent code architecture or performance optimization, (8) concurrency-related linter warnings (SwiftLint or similar; e.g. async_without_await, Sendable/actor isolation/MainActor lint).

by instavm

Image processing skill for cropping images to 50% from center and rotating them 90 degrees clockwise. This skill should be used when users request image cropping to center, image rotation, or both operations combined on image files.

by ZhangHanDong

Reusable patterns for Makepad widget development, data management, and async architecture.

by dropseed

Manages database migrations and model changes. Use when creating migrations, running migrations, or modifying models.

by dropseed

Runs Python with Plain configured and database access. Use for scripts, one-off commands, or interactive sessions.

by dropseed

Captures and analyzes performance traces to identify slow queries and N+1 problems. Use when analyzing performance or optimizing database queries.

by jimmc414

Look up current research information using Perplexity's Sonar Pro or Sonar Reasoning Pro models through OpenRouter. Automatically selects the best model based on query complexity. Search academic papers, recent studies, technical documentation, and general research information with citations.

by jimmc414

Evaluate research rigor. Assess methodology, experimental design, statistical validity, biases, confounding, evidence quality (GRADE, Cochrane ROB), for critical analysis of scientific claims.

by tidymodels

Detect and list all metric functions in the yardstick package. Use when a user asks to find, list, or identify all metrics in the package.

by water-rs

Implement FFI bindings for WaterUI components across Rust, Apple Swift, and Android Kotlin/JNI layers. Use when adding new component types, metadata wrappers, or fixing native binding errors (UnsatisfiedLinkError, missing symbols, type mismatches).

by maxritter

Define database models with clear naming, appropriate data types, constraints, relationships, and validation at multiple layers. Use this skill when creating or modifying database model files, ORM classes, schema definitions, or data model relationships. Apply when working with model files (e.g., models.py, models/, ActiveRecord classes, Prisma schema, Sequelize models), defining table structures, setting up foreign keys and relationships, configuring cascade behaviors, implementing model validations, adding timestamps, or working with database constraints (NOT NULL, UNIQUE, foreign keys). Use for any task involving data integrity enforcement, relationship definitions, or model-level data validation.

by expo

Use when implementing or debugging ANY network request, API call, or data fetching. Covers fetch API, axios, React Query, SWR, error handling, caching strategies, offline support.

by evstack

Explains ev-node architecture, components, and internal workings. Use when the user asks how ev-node works, wants to understand the block package, DA layer, sequencing, namespaces, or needs architecture explanations. Covers block production, syncing, DA submission, forced inclusion, single vs based sequencer, and censorship resistance.

by No-Trade-No-Life

基于Hyperliquid成功实现经验，为新交易所供应商提供Yuan框架集成指南。使用此技能当需要为新的交易所创建供应商实现，包括项目结构设计、API集成、核心服务实现和最佳实践。适用于交易所API集成、金融系统开发、微服务架构设计。

by elbwalker

Use when transforming events at any point in the flow (source→collector or collector→destination), configuring data/map/loop/condition, or understanding value extraction. Covers all mapping strategies.

by elbwalker

Use when working with sources, understanding event capture, or learning about the push interface. Covers browser, dataLayer, and server source patterns.

by vfarcic

Query sibling dot-ai projects to verify features are USABLE (not just defined). IMPORTANT: When calling this skill, explain HOW you plan to use the feature (e.g., 'I need to call X via REST API from the UI' or 'I need to import Y function'). This helps verify the full chain from definition to exposure.

by benchflow-ai

Train GPT-2 scale models (~124M parameters) efficiently on a single GPU. Covers GPT-124M architecture, tokenized dataset loading (e.g., HuggingFace Hub shards), modern optimizers (Muon, AdamW), mixed precision training, and training loop implementation.

by benchflow-ai

Analyze user retention and churn using survival analysis, cohort analysis, and machine learning. Calculate retention rates, build survival curves, predict churn risk, and generate retention optimization strategies. Use when working with user subscription data, membership information, or when user mentions retention, churn, survival analysis, or customer lifetime value.

by benchflow-ai

Retrieve attractions by city from the bundled dataset. Use this skill when surfacing points of interest or building sightseeing suggestions for a destination.

by benchflow-ai

List cities for a given state using the bundled background data. Use this skill to validate state inputs or expand destination choices before flight/restaurant/attraction/driving/accommodation lookups.

by benchflow-ai

Retrieve restaurants by city from the bundled dataset. Use this skill when recommending places to eat or validating dining options for a destination.

by benchflow-ai

This skill should be used when working with SQL databases, "SELECT", "INSERT", "UPDATE", "DELETE", "CREATE TABLE", "JOIN", "INDEX", "EXPLAIN", transactions, or database migrations. Provides comprehensive SQL patterns across PostgreSQL, MySQL, and SQLite.

by benchflow-ai

Generate and optimize SQL queries for data retrieval and analysis

by benchflow-ai

Tools and techniques for detrending time series data in macroeconomic analysis. Use when working with economic time series that need to be decomposed into trend and cyclical components. Covers HP filter, log transformations for growth series, and correlation analysis of business cycles.

by ruvnet

Implement semantic vector search with AgentDB for intelligent document retrieval, similarity matching, and context-aware querying. Use when building RAG systems, semantic search engines, or intelligent knowledge bases.

by tsale

Hypothesis-driven hunt plan for suspicious PowerShell, plus query snippets for common telemetry.

by wheels-dev

Generate Wheels view templates with proper query handling, form helpers, and association display. Use when creating or modifying views, forms, layouts, or partials. Prevents common view errors like query/array confusion and incorrect form helper usage. Handles index views, show views, form views, and layouts with proper CFML syntax.

by aiskillstore

Async/await correctness in React Native with Zustand. Use when debugging race conditions, missing awaits, floating promises, or async timing issues in Expo/React Native apps.

by ingen084

EEW（緊急地震速報）機能のアーキテクチャ解説。EEW関連のコード修正、予報電文・警報電文の処理フロー、キャッシュ管理、ソース優先順位の理解に使用。

by jezweb

Build type-safe D1 databases with Drizzle ORM. Includes schema definition, migrations with Drizzle Kit, relations, and D1 batch API patterns. Prevents 12 errors including SQL BEGIN failures and foreign key issues.Use when: defining D1 schemas, managing migrations, or troubleshooting D1_ERROR, BEGIN TRANSACTION, foreign keys.

by jezweb

Build document Q&A with Gemini File Search - fully managed RAG with automatic chunking, embeddings, and citations. Upload 100+ file formats, query with natural language.Use when: document Q&A, searchable knowledge bases, semantic search. Troubleshoot: document immutability, storage quota (3x), chunking config, metadata limits (20 max), polling timeouts.

by jezweb

Generate complete SEO meta tags for every page. Covers title patterns, meta descriptions, Open Graph, Twitter Cards, and JSON-LD structured data (LocalBusiness, Service, FAQ, BreadcrumbList).Use when: building pages, adding social sharing, implementing structured data, optimizing for search engines.

by ComposioHQ

Turn meeting transcripts or rough notes into crisp summaries with decisions, risks, and owner-tagged action items; use for Zoom/Meet/Teams transcripts, call notes, or long meeting chats to generate share-ready outputs.

by shinpr

React/TypeScriptの型安全性、コンポーネント設計、状態管理ルールを適用。Reactコンポーネント実装時に使用。

by anthropics

Deep learning for single-cell analysis using scvi-tools. This skill should be used when users need (1) data integration and batch correction with scVI/scANVI, (2) ATAC-seq analysis with PeakVI, (3) CITE-seq multi-modal analysis with totalVI, (4) multiome RNA+ATAC analysis with MultiVI, (5) spatial transcriptomics deconvolution with DestVI, (6) label transfer and reference mapping with scANVI/scArches, (7) RNA velocity with veloVI, or (8) any deep learning-based single-cell method. Triggers include mentions of scVI, scANVI, totalVI, PeakVI, MultiVI, DestVI, veloVI, sysVI, scArches, variational autoencoder, VAE, batch correction, data integration, multi-modal, CITE-seq, multiome, reference mapping, latent space.

by jpicklyk

Database schema design, migrations, query optimization with SQL, Exposed ORM, Flyway. Use for database, migration, schema, sql, flyway tags. Provides migration patterns, validation commands, rollback strategies.

by 23blocks-OS

PROACTIVELY query the code graph database to understand relationships and impact of changes. Use this skill WHEN READING any file to understand context, when searching for files, when exploring the codebase, or when you need to understand what depends on a component. This is your primary tool for understanding code structure and avoiding breaking changes.

by CloudAI-X

Guides performance optimization, profiling techniques, and bottleneck identification. Use when improving application speed, reducing resource usage, or diagnosing performance issues.

by sundial-org

Calculate training costs for Tinker fine-tuning jobs. Use when estimating costs for Tinker LLM training, counting tokens in datasets, or comparing Tinker model training prices. Tokenizes datasets using the correct model tokenizer and provides accurate cost estimates.

by ZhangHanDong

Use when building CLI tools. Keywords: CLI, command line, terminal, clap, structopt, argument parsing, subcommand, interactive, TUI, ratatui, crossterm, indicatif, progress bar, colored output, shell completion, config file, environment variable, 命令行, 终端应用, 参数解析

by ZhangHanDong

Use when developing embedded/no_std Rust. Keywords: embedded, no_std, microcontroller, MCU, ARM, RISC-V, bare metal, firmware, HAL, PAC, RTIC, embassy, interrupt, DMA, peripheral, GPIO, SPI, I2C, UART, embedded-hal, cortex-m, esp32, stm32, nrf, 嵌入式, 单片机, 固件, 裸机

by ZhangHanDong

CRITICAL: Use for smart pointers and resource management. Triggers: Box, Rc, Arc, Weak, RefCell, Cell, smart pointer, heap allocation, reference counting, RAII, Drop, should I use Box or Rc, when to use Arc vs Rc, 智能指针, 引用计数, 堆分配

by ZhangHanDong

CRITICAL: Use for performance optimization. Triggers: performance, optimization, benchmark, profiling, flamegraph, criterion, slow, fast, allocation, cache, SIMD, make it faster, 性能优化, 基准测试

by ZhangHanDong

Use when reviewing code for anti-patterns. Keywords: anti-pattern, common mistake, pitfall, code smell, bad practice, code review, is this an anti-pattern, better way to do this, common mistake to avoid, why is this bad, idiomatic way, beginner mistake, fighting borrow checker, clone everywhere, unwrap in production, should I refactor, 反模式, 常见错误, 代码异味, 最佳实践, 地道写法

by mitkox

Create domain models following Domain-Driven Design principles

by liangdabiao

Analyze user retention and churn using survival analysis, cohort analysis, and machine learning. Calculate retention rates, build survival curves, predict churn risk, and generate retention optimization strategies. Use when working with user subscription data, membership information, or when user mentions retention, churn, survival analysis, or customer lifetime value.

by barefootford

Transcribes video audio using WhisperX, preserving original timestamps. Creates JSON transcript with word-level timing. Use when you need to generate audio transcripts for videos.

by OpenCloudOS

使用perf-prof进行Linux系统问题分析。perf-prof是基于perf_event的系统级分析工具，事件在内存中实时处理，可长期运行。触发场景：(1) CPU使用率高、热点分析 (2) 进程状态异常(D/S状态多) (3) 延迟抖动、响应慢 (4) 内存泄露或增长异常 (5) 块设备IO慢 (6) 虚拟机性能问题 (7) 事件聚合统计 (8) 自定义脚本分析。核心分析器：profile(CPU采样)、task-state(进程状态)、multi-trace(延迟分析)、kmemleak(内存泄露)、blktrace(IO延迟)、top/sql(聚合统计)、kvm-exit(虚拟化退出)、rundelay(调度延迟)、syscalls(系统调用耗时)、python(自定义脚本分析)。适用于：性能问题定位、内核/应用开发调试、学习理解Linux内核机制（调度、内存、IO、中断等）。