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PowerShell Windows patterns. Critical pitfalls, operator syntax, error handling.

Linux system troubleshooting workflow for diagnosing and resolving system issues, performance problems, and service failures.

React Native framework for building native mobile apps with React. Use when building iOS/Android apps, working with native components, handling touch…

Parallel and concurrent processing patterns in bash including GNU Parallel, xargs, job pools, and async patterns (2025)

Migrates REST APIs to GraphQL incrementally with schema stitching, REST datasources, and gradual endpoint migration. Use when users request "migrate to…

Meta Media Buyer — publish, manage, and analyze Meta (Facebook/Instagram) ad campaigns via the Marketing API. Includes guided setup for first-time users. USE WHEN user says "meta ads", "facebook ads", "instagram ads", "publish ads", "create campaign", "launch campaign", "ad performance", "ROAS", "which ad is winning", "ad spend", "campaign metrics", "pause campaign", "resume campaign", "upload ad images", "ad set performance", "creative performance", "set up meta ads", "connect meta ads", "meta ads setup", or needs to publish, manage, or analyze paid Meta advertising campaigns.

Sets up new projects or improves existing projects with development best practices, tooling, documentation, and workflow automation. Use when user wants to…

Creates stable mocks for APIs, services, and UI components using MSW (Mock Service Worker), fixture conventions, and example patterns. Use for "API mocking",…

Automatically detects and documents user preferences, coding rules, and style guidelines when expressed during conversations

Just command runner expertise — Justfile syntax, recipes, parameters, modules, shebang recipes. Use when authoring justfiles, project commands, or task…

Use this skill when users need help with pricing strategy, feel they're undercharging, want to raise prices confidently, or need to position offerings as…

Pre-landing PR review. Analyzes diff against the base branch for SQL safety, LLM trust boundary violations, conditional side effects, and other structural issues. Use when asked to "review this PR", "code review", "pre-landing review", or "check my diff". Proactively suggest when the user is about to merge or land code changes. (gstack)

Review asynchronous Python code to identify race conditions, deadlocks, and inefficient patterns. Use when working with asyncio, aiohttp, or FastAPI.

Use this skill when designing microservice architectures, decomposing monoliths, implementing inter-service communication, or solving distributed data challenges. Triggers on service decomposition, saga pattern, CQRS, event sourcing, API gateway, service mesh, circuit breaker, distributed transactions, and any task requiring microservice design decisions or migration strategies.

Safe refactoring with behavior preservation. Use when reducing technical debt, applying strangler migrations, or tightening CI guardrails.

Atlassian Jira expert for creating and managing projects, planning, product discovery, JQL queries, workflows, custom fields, automation, reporting, and all Jira features. Use for Jira project setup, configuration, advanced search, dashboard creation, workflow design, and technical Jira operations.

Expert React Native and Expo development skill for building cross-platform mobile apps. Use this skill when creating, debugging, or optimizing React Native projects - Expo setup, native modules, navigation (React Navigation, Expo Router), performance tuning (Hermes, FlatList, re-render prevention), OTA updates (EAS Update, CodePush), and bridging native iOS/Android code. Triggers on mobile app architecture, Expo config plugins, app store deployment, push notifications, and React Native CLI tasks.

Tool discovery and shell one-liner reference for sysadmin, DevOps, and security tasks. AUTO-CONSULT this skill when the user is: troubleshooting network…

Automates releases and package publishing with changesets or semantic-release. Handles versioning, changelog generation, git tags, and release notes. Use for…

Validates environment variables in CI, prevents secret leaks, enforces masking, and provides fail-fast validation with clear documentation. Use for "secrets…