Developer Tools & Repos Agent Skills for Gemini CLI

When to activate: push notifications, UserNotifications framework, APNs, notification content extensions, rich notifications, notification…

Progressive Web App patterns with Workbox 7.x, service worker lifecycle, offline-first strategies, and installability.

When to activate: Pydantic v2, data validation, serialization, settings management, pydantic-settings, field validators

Complete guide for Pyth Network - decentralized oracle providing real-time price feeds for DeFi.

When to activate: httpx, API clients, retry logic, auth headers, rate limiting client-side, OpenAPI client generation

Best practices, common mistakes, decision guidance, and checklists for async Python, asyncio, and FastAPI — covering single-instance code…

Production Python async patterns including asyncio TaskGroup, FastAPI dependency injection and middleware, SQLAlchemy 2.0 async sessions…

When to activate: ARQ, RQ, background workers, Redis-based queues, async task workers

Pythonic code with modern type hints, dataclasses, async patterns, packaging, and testing

Guidance for writing, reviewing, and refactoring Python code with clear style, naming, design principles, and testing discipline.

Reviews Python code for type safety, async patterns, error handling, and common mistakes.

When to activate: multiprocessing, threading, concurrent.futures, ProcessPoolExecutor, GIL, CPU-bound tasks

When to activate: configuration management, pydantic-settings, env files, feature flags, environment-specific settings

When to activate: dataclasses, attrs, msgspec, frozen dataclasses, slots, inheritance, value objects

Modern Python development workflow where ALL Python execution goes through uv run — never call python, pip, or pytest directly.

Set up a Python virtual environment and install Reflex.

When to activate: event-driven architecture, domain events, event sourcing, Kafka, RabbitMQ, NATS

Guidance for structuring a Python/FastAPI backend into layers (routers/services/repositories) and feature-first modules so it stays easy…

Python/FastAPI coding standards including async patterns, Pydantic v2, SQLAlchemy 2.0, and project structure.

When to activate: gRPC, protobuf, grpcio, async gRPC, streaming, service definitions, interceptors

MANDATORY FIRST STEP for Shutterstock API Explorer Python SDK work in a Python project — load this BEFORE you write any code; Python SDK…