Git & Version Control

Design durable workflows with Temporal for distributed systems. Covers workflow vs activity separation, saga patterns, state management, and determinism constraints. Use when building long-running processes, distributed transactions, or microservice orchestration.

Expert Debian package builder specializing in git-buildpackage, debhelper, and Debian Policy compliance. Use for .deb packaging, debian/ directory work, dpkg operations, and package maintenance. Triggers on "Debian", ".deb", "dpkg", "debhelper", "gbp", "pbuilder", "lintian", "dch".

Structure n8n nodes correctly with INodeTypeDescription, resource-operation patterns, and proper package.json configuration. Use this skill when creating new *.node.ts files, defining INodeTypeDescription properties, implementing resource and operation parameters, building trigger nodes, organizing complex nodes into actions folders, or configuring the n8n section in package.json. Apply when choosing between declarative and programmatic styles, setting up node metadata, or structuring community node packages.

Expert guidance for building mobile applications with React Native and Expo. Use when the user asks to create, modify, debug, or architect mobile apps, implement native features (camera, notifications, storage, navigation), set up React Native projects, work with Expo or bare React Native workflows, integrate with device APIs, handle app state management, or optimize mobile performance. Triggers on mobile app development, React Native, Expo, iOS/Android cross-platform development.

Manage git worktrees for parallel branch development and PR reviews.Use when asked about: worktrees, working on multiple branches, parallel development,PR review without switching, testing without committing, multiple features simultaneously,long-running builds, comparing branches side-by-side.Integrates with: feature workflow, Azure DevOps work items, GitHub PRs.

Comprehensive Firebase skill for TypeScript/Next.js 16 projects. Use when configuring Firebase services (Firestore Client SDK with aggregations/vector search, Authentication, Storage, Cloud Functions v2, FCM push notifications, App Check bot protection), implementing security rules and indexes, troubleshooting Firebase errors, setting up auth providers (email/password, Google Sign-In), configuring VAPID keys for notifications, custom action URLs, reCAPTCHA Enterprise, replay protection, or resolving permission issues. Covers TypeScript patterns, Next.js 16 SSR/App Router integration, and common pain points like CORS, duplicate documents, notification setup, and bot abuse prevention.

Use when adding Jest testing configuration to Nx projects, running `nx g @nx/jest:configuration`, setting up testing infrastructure, or troubleshooting tests that fail after running the Jest generator. Ensures proper TypeScript moduleResolution (nodenext), testing enhancement libraries (jest-dom, user-event, MSW), and monorepo pattern adherence. Triggers: "add tests", "setup Jest", "configure testing", "Jest not working", "moduleResolution error", "tests failing after generator"

Use this skill when you are writing commands, hooks, skills for Agent, or prompts for sub agents or any other LLM interaction, including optimizing prompts, improving LLM outputs, or designing production prompt templates.

Master TypeScript's advanced type system including generics, conditional types, mapped types, template literals, and utility types for building type-safe applications. Use when implementing complex type logic, creating reusable type utilities, or ensuring compile-time type safety in TypeScript projects.

Creates design document infrastructure including templates, workflows, and a specific design doc skill. Use when setting up design docs for a new project or when the user mentions "bootstrapping-design-docs".

Create a new git worktree for an agent to work in isolation. Use this when starting parallel implementation of a sub-issue to provide complete environment isolation with unique ports and database.

Run comprehensive code quality checks including TypeScript typecheck, ESLint linting, Prettier formatting, and Markdown validation. Auto-fixes formatting issues in agent mode or provides read-only checks for CI pipelines. Use when: (1) Before committing code changes, (2) In CI/CD pipelines for automated quality gates, (3) After making significant code changes, (4) When preparing code for review, (5) When ensuring code meets quality standards, (6) For type checking, linting, formatting, and markdown validation, (7) In pre-commit hooks, or (8) For automated quality gates before merging. Triggers: finalize, code quality, typecheck, lint, format, check code, quality check, run checks, pre-commit, before commit, CI checks, validate code.

Generate Python dataclasses dynamically from SQL queries and database schemas. Use this skill when you need to create type-safe Python classes representing SQL query results, including denormalized fields from JOINs.

Create git commits following conventional commits format. Use when asked to commit changes.

Guide for configuring GitHub repository rules, branch protection, rulesets, CODEOWNERS, and security policies. Use when users need to set up branch protection rules, configure required reviews, enforce status checks, manage merge strategies, or implement repository security policies.

Reusable Liquid snippet patterns with proper documentation and parameter handling

Automatically applies when working with git. Ensures conventional commits, branch naming, PR templates, release workflow, and version control best practices.

Work with GitHub issues - create, list, update, comment, and search issues using gh CLI

Use when working with ES/NQ futures market data, before calling any Databento API - follow mandatory four-step workflow (cost check, availability check, fetch, validate); prevents costly API errors and ensures data quality

Modern CSS standards covering essentials, responsive design, quality practices, and tooling for CUI projects