aka. Agent Skills
Discover skills for AI coding agents. Works with Claude Code, OpenAI Codex, Gemini CLI, Cursor, and more.
Numerical computing patterns for C++20 including matrix operations, iterative solvers, numerical stability, data pipelines, and HPC I/O with MPI-IO and HDF5.
Use this skill when adding authentication, handling user input, working with secrets, creating API endpoints, or implementing payment/sensitive features. Provides comprehensive security checklist and patterns.
GitHub Spec Kit (https://github.com/github/spec-kit) を使って要件定義や仕様作成(仕様策定・仕様書作成・仕様設計を含む)を新規作成または既存仕様へ追記し、spec.md/plan.md/tasks.mdまで生成・更新する。要件定義、要件追加/変更、TDD前提の要件整理、仕様の明文化、Spec Kitのspecify/clarify/plan/tasksフロー実行が求められるときに使用。
Ink.js (React for CLI) design and implementation guide. Use when: (1) Creating or modifying Ink.js components (2) Implementing Ink-specific hooks (useInput, useApp, useFocus) (3) Handling emoji/icon width issues (string-width workarounds) (4) Building terminal-responsive layouts (5) Managing multi-screen navigation (6) Implementing animations (spinners, progress bars) (7) Optimizing performance (React.memo, useMemo) (8) Handling keyboard input and shortcuts (9) Testing CLI UI (ink-testing-library)
The VALIDATING phase runs the completeness gate to ensure design is ready for implementation
Setup Tailwind CSS and shadcn/ui component library for Next.js projects. Use when configuring Tailwind CSS, installing shadcn/ui, setting up design tokens, configuring dark mode, initializing component library, or when user mentions Tailwind setup, shadcn/ui installation, component system, design system, or theming.
Close out a collab session - archive or delete design artifacts
Start or resume a collab session - session management only
2025 SEO best practices for Next.js including Core Web Vitals (INP replaces FID), E-E-A-T signals, Schema markup, AI content guidelines, and technical SEO. Use when optimizing pages for search engines, implementing metadata, adding structured data, or improving page speed.
Django, Flask, FastAPI integration patterns for Celery. Use when integrating Celery with Django, Flask, or FastAPI, setting up framework-specific configurations, handling application contexts, managing database transactions with tasks, configuring async workers, or when user mentions Django Celery, Flask Celery, FastAPI background tasks, framework integration, or web framework task queues.
Detailed execution logic for the executing-plans skill
Help users write professional git commit messages following Conventional Commits. Use when users ask about commits, need help writing commit messages, want to validate commit format, ask about git message conventions, or use slash commands like /commit, /validate, /changelog, /version.
Use when executing implementation plans with independent tasks in the current session
Frontend website debugging toolkit using Chrome DevTools Protocol with Playwright/WebKit fallbacks. Use this skill when: (1) Debugging CSS, HTML, or JavaScript issues on a webpage, (2) Taking screenshots to verify visual changes, (3) Inspecting DOM structure or console errors, (4) Testing responsive layouts, (5) Extracting selectors for automation, (6) Self-debugging frontend work Claude has created, (7) User says "debug this page", "check my site", "why doesn't this look right", or "fix the frontend". Supports Chrome (primary) and Safari/WebKit (via Playwright). Designed for agent-driven debugging loops.
Ask user about auto-allow for rough-draft proposals before starting rough-draft phase
Investigate bugfix items using test-first debugging methodology
Ask user a question via browser UI and wait for response
Use when project knowledge could help - queries Kodex topics and flags outdated information
Performance optimization patterns for Mem0 memory operations including query optimization, caching strategies, embedding efficiency, database tuning, batch operations, and cost reduction for both Platform and OSS deployments. Use when optimizing memory performance, reducing costs, improving query speed, implementing caching, tuning database performance, analyzing bottlenecks, or when user mentions memory optimization, performance tuning, cost reduction, slow queries, caching, or Mem0 optimization.
Best practices for memory architecture design including user vs agent vs session memory patterns, vector vs graph memory tradeoffs, retention strategies, and performance optimization. Use when designing memory systems, architecting AI memory layers, choosing memory types, planning retention strategies, or when user mentions memory architecture, user memory, agent memory, session memory, memory patterns, vector storage, graph memory, or Mem0 architecture.