IDE & Editors

Activate this skill when users need help with live streaming workflows including pre-stream setup, real-time source management during streams, audio verification, scene transitions, or stream health monitoring. Triggers include requests like "help me stream", "pre-stream checklist", "manage my stream", "check audio before streaming", "switch scenes during stream", or troubleshooting streaming issues. This skill orchestrates multiple tools to guide users through complete streaming sessions from setup to teardown.

Guide for designing effective tools for AI agents. Use when creating tools for custom agent systems or any AI tool interfaces. Provides principles for tool naming, input/output design, error handling, and evaluation methodologies that maximize agent effectiveness.

Expert guidance for writing professional Emacs Lisp code following thecommunity-driven Emacs Lisp Style Guide by Bozhidar Batsov. Covers layout,naming conventions, syntax preferences, macros, documentation, and best practices.Use this skill when writing Emacs configuration, creating Emacs packages,writing interactive commands, developing major/minor modes, or refactoringEmacs Lisp code.Emphasizes: lexical binding, proper naming, documentation standards, autoloading,and community conventions.

Provides comprehensive project folder structure design guidelines and best practices. Defines standard directory organizations for diverse project types including monorepos, web frameworks, backend services, libraries, and extensions. Ensures scalable, maintainable architecture through consistent file organization patterns. Specializes in separation of concerns, modular architecture, and tooling integration.Use when: designing new project structures, organizing monorepo workspaces with tools like Turborepo/Nx, structuring NestJS backend projects, organizing React/Next.js frontend applications, designing Go service architectures, creating NPM package structures, organizing VSCode extension projects, structuring Chrome extension codebases, planning directory hierarchies, migrating legacy project structures, or establishing code organization conventions for teams.

Advanced 2025 Claude Code plugin features. PROACTIVELY activate for: (1) Agent Skills with progressive disclosure (2) Hook automation (PreToolUse, PostToolUse, etc.) (3) MCP server integration (4) Repository-level configuration (5) Team plugin distribution (6) Context efficiency optimization Provides cutting-edge plugin capabilities and patterns.

Testable code design patterns for TypeScript/React applications. Triggers: テスタビリティ, testability, テスト可能, テストしやすい, モック, mock, 純粋関数, pure function, 依存性注入, dependency injection, DI, 副作用, side effect, 副作用分離, テスト困難, hard to test.

Automatically categorizes test failures, suggests responsible owners, and provides common fix checklists. Generates actionable test reports with failure analysis. Use for "test reporting", "failure triage", "test analysis", or "test automation".

Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).

Generate comprehensive test coverage reports when reviewing code. Identifies untested code paths and low-coverage areas. Supports Python (pytest-cov), JavaScript (jest), Go (go test -cover), Java (JaCoCo). Use when reviewing tests or before approving code changes.

Produces comprehensive system architecture plans for features and products including component breakdown, data flow diagrams, system boundaries, API contracts, and scaling considerations. Use for "system design", "architecture planning", "feature design", or "technical specs".

ACGME regulatory compliance expertise for medical residency scheduling. Use when validating schedules, checking work hour limits, supervision ratios, or answering compliance questions. Integrates with MCP validation tools.

React/Next.js enterprise best practices including component patterns, Link/Image optimization, shared components, and TypeScript conventions. Use this skill when creating components, pages, or working with Next.js features.

Comprehensive guide for implementing Fullstory's Analytics Events API (trackEvent) for web applications. Teaches proper event naming, property structuring, type handling, and e-commerce event patterns. Includes detailed good/bad examples for funnel tracking, feature usage, conversion events, and SaaS subscription flows to help developers capture meaningful business events for analytics and segmentation.

Use Hugging Face Smolagents framework for code-based agentic research with tool support. Supports multiple LLM providers and web search.

Expert guide for creating OpenCode skills. Use when: (1) Creating new skills with scripts and resources, (2) Learning skill design patterns, (3) Validating existing skills, (4) Choosing the right skill archetype.

This skill identifies novel transcription factor binding motifs in the promoter regions of genes, or directly from genomic regions of interest such as ChIP-seq peaks, ATAC-seq accessible sites, or differentially acessible regions. It employs HOMER (Hypergeometric Optimization of Motif Enrichment) to detect both known and previously uncharacterized sequence motifs enriched within the supplied genomic intervals. Use the skill when you need to uncover sequence motifs enriched or want to know which TFs might regulate the target regions.

Generate a coverage report for all localization files using the project's check-i18n tool. Use when auditing translation completeness or identifying languages needing attention.

Unifies API response patterns across endpoints including pagination format, error structure, status codes, response envelopes, and versioning strategy. Provides contract documentation, shared TypeScript types, middleware utilities, and migration plan. Use when standardizing "API contracts", "response formats", "API conventions", or "API consistency".

Industry-specific guide for implementing Fullstory in B2B SaaS applications. Covers feature adoption tracking, onboarding optimization, churn prediction signals, multi-tenant privacy considerations, role-based experiences, and enterprise customer requirements. Includes detailed examples for dashboards, workflows, settings, and collaboration features.

Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Codex's capabilities with specialized knowledge, workflows, or tool integrations.