Claude Skills by majiayu000

Build trading systems in the style of Jump Trading, the high-frequency trading firm pioneering FPGA-based trading. Emphasizes hardware acceleration, network optimization, and nanosecond-level execution. Use when building FPGA trading systems, network-optimized infrastructure, or ultra-low-latency order execution.

Expert in Jungian analytical psychology, depth psychology, shadow work, archetypal analysis, dream interpretation, active imagination, addiction/recovery through Jungian lens, and the individuation process - grounded in primary sources and clinical frameworks. Activate on 'Jung', 'Jungian', 'shadow work', 'archetypes', 'dream interpretation', 'active imagination', 'individuation', 'anima', 'animus', 'collective unconscious', 'addiction', 'recovery', 'spiritus contra spiritum'. NOT for therapy...

JUnit 5 core testing patterns with AAA structure, test organization, and coverage standards

Use when jUnit extensions including custom extensions, rules, and conditional test execution.

Use when jUnit fundamentals including annotations, assertions, and test lifecycle for Java testing.

Maven integration testing with Failsafe plugin, IT naming conventions, and profile configuration

Use when jUnit parameterized tests with various value sources and test factories.

Provides comprehensive guidance for JUnit testing framework including test annotations, assertions, test lifecycle, and best practices. Use when the user asks about JUnit, needs to write Java unit tests, use JUnit annotations, or configure JUnit for Java projects.

Create educational and interactive Jupyter notebooks as SPAs that explain concepts, teach topics, create tutorials, illustrate ideas from text, or build blog posts. Use for interactive guides, demonstrations, explanations, documentation, or any content meant for end users and learners displayed via ipynb-viewer block. Keywords include educational notebook, tutorial notebook, interactive guide, blog notebook, SPA notebook, explain topic, illustrate concept, teach interactively.

Create/refactor Jupyter notebooks for AI-agent workflows with per-directory Pixi kernels (pixi.toml), narrative-first KISS structure (markdown above every code cell), robust data loading (DuckDB + TSV/Parquet), beautiful plots, and strict "run-all-cells" validation before reporting completion.

Guidelines for structuring and documenting Jupyter notebooks for reproducibility and clarity.

Jupyter Notebook Expert Skill - Guide for notebook execution and Databricks kernel integration

Create and manage Jupyter notebooks for testing Adobe Edge Delivery Services (EDS) blocks interactively in the browser using the ipynb-viewer block. Interactive JavaScript execution, overlay previews with backdrop, direct ES6 imports. Use when creating notebooks, testing blocks with ipynb files in browser, generating overlay previews, or creating executable documentation.

Creates reproducible Jupyter notebooks for bioinformatics analysis with parameterization using papermill. Use when generating automated analysis reports, running notebook-based pipelines, or creating shareable computational notebooks.

JupyterLab ML/AI development environment management via Podman Quadlet. Supports multi-instance deployment, GPU acceleration (NVIDIA/AMD/Intel), token authentication, and per-instance configuration. Use when users need to configure, start, stop, or manage JupyterLab containers for ML development.

This skill should be used when the user asks to "convert notebook to text", "use jupytext", "version control notebooks", "share data between kernels", "set up multi-kernel project", "pair notebooks with Python files", "sync ipynb and py files", or needs multi-kernel projects (Python/R/Stata/SAS) with version-control-friendly notebooks.

Imported skill jura_ofl from anthropic

> **Auto-generated from IO Matrix** ---

Best practices for using just command runner and task automation in development workflows.

Analyze bank transaction CSVs to find recurring charges, categorize subscriptions, and cancel what you don't need. Use when user says "cancel subscriptions", "audit subscriptions", "find recurring charges", or "what am I paying for". Supports Apple Card, Chase, Mint, and generic CSV formats. Outputs interactive HTML audit with copy-to-cancel workflow.

This skill provides patterns for setting up just (command runner) in projects. Use PROACTIVELY when creating build systems, setting up new repos, or when the user asks about just/justfile configuration. Covers both simple single-project repos and monorepos with hierarchical justfile modules.

Just command runner for saving and running project-specific commands

Level 3 patterns - test-smart, deploy, migrate, logs, status (production systems)

Baseline justfile commands - exact comment strings, all projects implement these

Five-level maturity progression - assessment criteria, upgrade paths, YAGNI enforcement

Level 4 patterns - multi-language orchestration, root + subproject structure

Level 1 patterns - test-watch, integration-test, complexity, loc, duplicates, slowtests

Level 2 patterns - vulns, lic, sbom, doctor (security, compliance, environment health)

Style guidelines for justfile recipe documentation. Use when writing or editing justfiles to ensure consistent and concise documentation.

Feature Justice Matrix items for storytelling and content creation

JusticeHub brand alignment and design system. Use for page creation, design review, component patterns, accessibility, and copy writing.

This skill ensures Claude always works in the JusticeHub codebase located at `/Users/benknight/Code/JusticeHub` and never accidentally works in the wrong repository.

Platform audit for JusticeHub pages, API routes, Supabase patterns, and Empathy Ledger integration.

专门用于从文档生成结构化试题的智能体。分析内容属性（大纲型 vs 知识型），提取关键点，并生成 JSON 或 Markdown 格式的高质量试题。当用户要求"根据文件出题"、"创建测验"、"制作试卷"或"提取考题"时使用此技能。

Use when working with SQLite databases in Bun. Covers Bun's built-in SQLite driver, database operations, prepared statements, and transactions with high performance.

Create new jutsu/skills for SHINOBI WAY game. Use when user wants to add abilities, techniques, jutsu, or combat skills. Guides through all parameters and generates TypeScript code.

Use when implementing over-the-air (OTA) updates with Expo Updates. Covers update configuration, checking for updates, and update strategies.

Juvix intent-centric language for Anoma with Geb compilation and GF(3) typed resources

Expert JVZoo integration specialist for building backend systems that handle JVZoo purchases, create user accounts, manage software licenses, and process IPN notifications. Use when implementing JVZoo product licensing, account creation workflows, payment processing, refund handling, or connecting software products to JVZoo marketplace by product ID.

Biome/Ultracite 린트 경고(예: useSortedClasses)와 포맷 문제를 의미 변경 없이(safe fix) 해결하고, 패키지 단위로 빠르게 재검증합니다.

Convex 기반 백엔드(@jwc/backend)에서 schema/쿼리/뮤테이션/액션을 안전하게 변경하고 codegen/dev로 검증합니다. Node 전용 액션("use node")과 비밀값 로그 금지 규칙을 포함합니다.

packages/ui의 shadcn/ui + Tailwind v4 컴포넌트를 추가/수정할 때 기존 컴포넌트 재사용, cn()/cva 패턴, exports 영향, lint/typecheck 절차를 따릅니다.

pnpm+turbo 모노레포에서 Node 버전(.nvmrc)과 터보 task 의존성을 고려해 lint/typecheck/build를 안전하게 실행하고, 실패 시 패키지 단위로 범위를 좁혀 원인을 찾습니다.

Audit JWT implementation for algorithm confusion, secret weakness, claim validation issues, and token handling vulnerabilities. Use when reviewing authentication systems using JWT.

Comprehensive JWT authentication expert for senior developers (10+ years experience). Intelligently detects project language/framework and implements production-ready JWT auth systems with refresh tokens, secure HTTP-only cookies, token rotation, blacklisting, RBAC, MFA, and complete security. Covers Express, FastAPI, Next.js, React, Django, Flask, NestJS, and more. Automatically audits JWT implementations, generates complete auth systems (registration, login, logout, refresh, password reset)...

Implement secure JWT (JSON Web Token) authentication in Node.js applications with access/refresh tokens and role-based access control

Generate JWT authentication configuration and utilities for API security. Triggers on "create jwt config", "generate jwt authentication", "jwt setup", "token auth config".

解码、验证和生成JWT令牌，支持多种算法。

This skill should be used when the user asks to "test JWT security", "hack JWT tokens", "bypass JWT authentication", "crack JWT secrets", or "exploit JWT vulnerabilities". It provides comprehensive JSON Web Token attack techniques and security assessment methodologies.

Guidelines for implementing JWT authentication with security best practices for token creation, validation, and storage