DevOps

Use this skill when the user asks subjective questions like "should I...", "is X good?", "what do you think about...", or seeks advice/recommendations. Reframe these as forecasting problems with explicit KPIs.

Expert guidance for designing, optimizing, and maintaining database schemas for SQL and NoSQL systems. Use when creating new databases, optimizing existing schemas, planning migrations, implementing security policies, or ensuring GDPR compliance. Covers normalization, indexing, data types, relationships, performance optimization, and audit logging.

Professional invoice and payment system for MyDetailArea dealership management. Creates invoices with itemization, tax calculations, payment tracking, and multi-format output (HTML/PDF/Excel). Includes email delivery, payment recording, and financial reporting. Use when creating invoices, recording payments, generating financial documents, or managing billing workflows.

SDD(Spec Driven Development) 자동화 워크플로우를 실행합니다. 사용자가 "다음 작업 진행해줘", "구현 시작해줘", "SDD 워크플로우 실행" 등을 요청할 때 활성화됩니다. 작업 분할, 계획서 작성, 구현, CI 검증까지 자동으로 진행합니다.

Validates and reviews skills against the Agent Skills specification. Checks YAML syntax, naming conventions, description quality, file structure, and best practices. Provides improvement suggestions with before/after examples and optionally applies fixes. Use when validating skills, reviewing skill quality, checking skills before commit, or when `--check-skill`, `--validate-skill`, or `--review-skill` is mentioned.

Senior Information Security Manager specializing in ISO 27001 and ISO 27002 implementation for HealthTech and MedTech companies. Provides ISMS implementation, cybersecurity risk assessment, security controls management, and compliance oversight. Use for ISMS design, security risk assessments, control implementation, and ISO 27001 certification activities.

Extracts and assesses research methodology, claims, evidence, and infrastructure from research papers in HASS disciplines. Evaluates transparency, reproducibility, and credibility through systematic extraction (eight-pass workflow, Pass 0-7) and credibility assessment (research approach classification, quality gating, and repliCATS Seven Signals evaluation adapted for HASS).

Create and optimize Dockerfiles, docker-compose.yml files, multi-stage builds, and container configurations. Use when user mentions Docker, containers, Dockerfile, docker-compose, containerization, image optimization, or asks to dockerize an application.

Comprehensive skill for working with Azure DevOps REST API across all services including Boards (work items, queries, backlogs), Repos (Git, pull requests, commits), Pipelines (builds, releases, deployments), Test Plans, Artifacts, organizations, projects, security, extensions, and more. Use when implementing Azure DevOps integrations, automating DevOps workflows, or building applications that interact with Azure DevOps services.

Comprehensive guide to Rust automated testing covering unit, integration, and documentation tests. Includes practical patterns for async testing, property-based testing with proptest, mocking strategies using traits, and essential testing tools (cargo-nextest, criterion, tarpaulin). Emphasizes FIRST principles and CI/CD integration. Use this when: setting up new Rust projects, establishing testing standards for teams, improving existing test suites, implementing TDD workflows, or learning Rust testing ecosystem best practices. Particularly valuable for projects requiring high reliability and comprehensive test coverage.

Optimizes outputs by interpreting underspecified prompts before execution. Analyzes user input, infers missing context and specifications, then executes an enhanced version. Produces better results directly rather than outputting optimized prompt text.

Guide for creating and configuring custom OpenCode agents. Use this skill when you need to define specialized agents with specific system prompts, models, and tool permissions.

Master machine learning, data engineering, LLMs, prompt engineering, AI agents, and MLOps. Covers Python ML libraries, data pipelines, LLM applications, and model deployment. Use for ML projects, data engineering, AI agent development, and ML system design.

Critical reference for all Supabase database operations. Use this whenever reading from or writing to the database to ensure correct client usage (supabaseServer vs supabase), schema names, and query patterns. CRITICAL for security.

Expert GCP specialist for BigQuery, Google Groups, IAM, and L'Oréal BTDP infrastructure. Use when working with any GCP projects with gcloud command (list resources in any GCP products like BigQuery, Cloud Run, Cloud Functions, IAM permissions and roles, Service Accounts, Spanner, Big Table, Dataflow, Firestore, Cloud Storage). Use it also to provide or remove permissions, deploy a resource, delete resources, any create/read/update/delete operations on Google Cloud Platform

Creating high-quality agent skills following Claude's official best practices. Use when designing, implementing, or improving agent skills, including naming conventions, progressive disclosure patterns, description writing, and appropriate freedom levels. Helps ensure skills are concise, well-structured, and optimized for context efficiency.

Personal blog management with Eleventy and Cloudflare Workers. Use when user mentions blog, publishing posts, blog deployment, tj-zhang.com, or writing articles for the blog. Covers content workflow from Obsidian to published post.

Manage blog post creation, YAML frontmatter (slug, title, excerpt, categories), validate metadata, track pipeline stages, export to PDF. Use when creating blog posts, publishing, or managing blog-specific workflows.

Reviews package dependencies for security vulnerabilities, outdated versions, and license compliance. Use when user asks about dependencies, security audits, or before releases.

Use when preparing to delegate to MacEff subagents. Read policies to discover current delegation patterns through timeless questions that extract details without prescribing answers.